From g.read from niwa.co.nz Wed Apr 1 23:03:01 2009 From: g.read from niwa.co.nz (Geoff Read) Date: Wed Apr 1 23:05:31 2009 Subject: [Annelida] Ficopomatus enigmaticus / Gulf of Mexico Message-ID: <49D4EFC4.8045.00D5.0@niwa.co.nz> Hi all, I was wondering - are there any non-anecdotal published records for Ficopomatus enigmaticus establishing in the Gulf of Mexico? I know of the boat hull occurrence reported in ten Hove and Weerdenburg, 1978, but vessels may come from afar and soon leave, or they may be resident, so this record is somewhat uncertain, whereas Ficopomatus miamiensis is apparently the widespread native species of this region. Thanks for any pointers. Geoff -- Geoff Read http://www.annelida.net/ http://www.niwascience.co.nz/ncabb/ About NIWA http://www.niwa.co.nz/about *************************** NIWA is the trading name of the National Institute of Water & Atmospheric Research Ltd. From JMGAGNON from mus-nature.ca Fri Apr 3 13:41:03 2009 From: JMGAGNON from mus-nature.ca (Jean-Marc Gagnon) Date: Fri Apr 3 16:12:37 2009 Subject: [Annelida] Who ate that fish? In-Reply-To: <49D4EFC4.8045.00D5.0@niwa.co.nz> Message-ID: <67B36D023E7A744BB4C9C83DCA80015002DC445A@NHBEXC01.mus-nature.ca> Anyone can put a species name on this Nereid? http://scienceblogs.com/pharyngula/2009/04/a_face_youve_got_to_love.php Jean-Marc Gagnon, Ph.D. Chief Collection manager / Gestionnaire en chef des collections Invertebrate Collections / Collections des invert?br?s Canadian Museum of Nature / Mus?e canadien de la nature P.O. Box 3443, Stn "D" / C.P. 3443, Succ. D Ottawa, ON Canada K1P 6P4 T: 613-364-4066 / F: 613-364-4027 E/C: jmgagnon@mus-nature.ca http://www.nature.ca From Michael.Reuscher from tamucc.edu Fri Apr 3 15:09:09 2009 From: Michael.Reuscher from tamucc.edu (Reuscher, Michael) Date: Fri Apr 3 16:13:31 2009 Subject: [Annelida] Giant polychaete in UK aquarium Message-ID: <22E76B7D3944A84A878AC660C2F4A9DEABF9F0@Hermes.ad.tamucc.edu> The giant eunicid Barry cuses trouble in an aquarium in the UK :) (see link below) http://wildshores.blogspot.com/2009/03/giant-worm-discovered-in-uk-aquarium.html Michael Reuscher, Ph.D. Student (Marine Biology) Harte Research Institute for Gulf of Mexico Studies Texas A&M University - Corpus Christi 6300 Ocean Drive, Unit 5869 Corpus Christi, Texas 78412-5869 -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.bio.net/bionet/mm/annelida/attachments/20090403/2873fb3d/attachment.html From g.read from niwa.co.nz Tue Apr 14 16:50:13 2009 From: g.read from niwa.co.nz (Geoff Read) Date: Tue Apr 14 16:53:17 2009 Subject: [Annelida] Ficopomatus enigmaticus / Gulf of Mexico In-Reply-To: <49D4EFC4.8045.00D5.0@niwa.co.nz> References: <49D4EFC4.8045.00D5.0@niwa.co.nz> Message-ID: <49E5ADD5.8045.00D5.0@niwa.co.nz> Hi, Individuals have privately reported 1st hand or 2nd hand observations of isolated occurrences to me and there is apparently another Harry ten Hove record from GOM in an article I haven't been able to assess. However, I haven't received reports of ongoing typical successful colonies (of which for the Americas Elkhorn Slough and Mar Chiquita populations are examples), and indeed one nearby correspondent seems confident there aren't any. Further enlightenment on this topic is invited. Geoff >>> On 2/04/2009 at 5:03 p.m., "Geoff Read" wrote: > Hi all, > > I was wondering - are there any non-anecdotal published records for > Ficopomatus enigmaticus establishing in the Gulf of Mexico? I know of the > boat hull occurrence reported in ten Hove and Weerdenburg, 1978, but vessels > may come from afar and soon leave, or they may be resident, so this record is > somewhat uncertain, whereas Ficopomatus miamiensis is apparently the > widespread native species of this region. > > Thanks for any pointers. -- Geoff Read http://www.annelida.net/ http://www.niwascience.co.nz/ncabb/ About NIWA http://www.niwa.co.nz/about *************************** NIWA is the trading name of the National Institute of Water & Atmospheric Research Ltd. From lisa from seasurvey.co.uk Thu Apr 16 04:41:34 2009 From: lisa from seasurvey.co.uk (Lisa Grubb) Date: Thu Apr 16 16:07:32 2009 Subject: [Annelida] help!unknown objects Message-ID: <49E6FD4E.3090005@seasurvey.co.uk> These pictures were taking of a silk from the continuous plankton recorder at the MBA - can anyone help with what it is? Is it could be a cast from a polychete? Probably not but I am clueless! Size of the mesh - holes inside are 280 microns, one picture you can see the mesh, the other is zoomed in so the mesh is a frame round the edges. Thanks -------------- next part -------------- A non-text attachment was scrubbed... Name: unknownsilk 1resized.jpg Type: image/jpeg Size: 24462 bytes Desc: not available Url : http://www.bio.net/bionet/mm/annelida/attachments/20090416/bf6083c9/unknownsilk1resized.jpg -------------- next part -------------- A non-text attachment was scrubbed... Name: unknownsilk 2resized.jpg Type: image/jpeg Size: 28671 bytes Desc: not available Url : http://www.bio.net/bionet/mm/annelida/attachments/20090416/bf6083c9/unknownsilk2resized.jpg -------------- next part -------------- A non-text attachment was scrubbed... Name: unknownsilk 3 resized.jpg Type: image/jpeg Size: 33510 bytes Desc: not available Url : http://www.bio.net/bionet/mm/annelida/attachments/20090416/bf6083c9/unknownsilk3resized.jpg From Dieter.Fiege from senckenberg.de Fri Apr 17 02:26:12 2009 From: Dieter.Fiege from senckenberg.de (Dieter Fiege) Date: Fri Apr 17 16:40:54 2009 Subject: Antw: [Annelida] help!unknown objects In-Reply-To: <49E6FD4E.3090005@seasurvey.co.uk> References: <49E6FD4E.3090005@seasurvey.co.uk> Message-ID: <49E84B33.FE54.00BA.0@senckenberg.de> Lisa, to me these appear to be very small fragments of the periderm of a young scyphopolyp of the Coronata, perhaps of the genus Stephanoscyphus or Nausithoe or similar. Have a look at the "K?stner", Lehrbuch der Speziellen Zoologie, Vol. I, Part 2, p. 66 or at the following references: http://dpc.uba.uva.nl/ctz/vol74/nr01/art08 see Fig. 9 http://www.springerlink.com/content/x4032mn39g4k0282/fulltext.pdf see Fig 2a Hope this helps. Dieter Dr. Dieter Fiege Curator for Marine Invertebrates (Polychaeta) Senckenberg Research Institute and Natural History Museum Senckenberganlage 25 D-60325 Frankfurt/Main Germany ph: +49-(0)69-7542 1265 Fax: +49-(0)69-746238 www.senckenberg.de >>> Lisa Grubb 04/16/09 11:41 >>> These pictures were taking of a silk from the continuous plankton recorder at the MBA - can anyone help with what it is? Is it could be a cast from a polychete? Probably not but I am clueless! Size of the mesh - holes inside are 280 microns, one picture you can see the mesh, the other is zoomed in so the mesh is a frame round the edges. Thanks From gread from actrix.gen.nz Fri Apr 17 23:39:46 2009 From: gread from actrix.gen.nz (Geoff Read) Date: Fri Apr 17 23:41:41 2009 Subject: [Annelida] Fwd: Siboga Message-ID: <59677.202.36.29.1.1240029586.squirrel@my.actrix.co.nz> Forwarded for Sergio. >>> On 18/04/2009 at 3:22 a.m., Sergio Salazar wrote: Dear Geoff and colleagues, Among several valuable monographs, the Internet Archive has many of the monographs made after the Siboga Expeditie, available in different formats. They currently have the volume for echiurans and sipunculans and only two volumes dealing with polychaetes. Please take a look at http://www.archive.org/details/sibogaexpeditie08sibo for the Echiura/Sipuncula, http://www.archive.org/details/sibogaexpeditie62sibo for the Amphinomidae, or http://www.archive.org/details/sibogaexpeditie80sibo for Aphroditidae and Chrysopetalidae. The plates of the former two volumes are poor while they are excellent in the latter. In case any of you have an original of Amphinomidae, it would be wonderful to share a pdf of the plates. Un abrazo, Sergio From gread from actrix.gen.nz Mon Apr 20 05:10:13 2009 From: gread from actrix.gen.nz (Geoff Read) Date: Mon Apr 20 05:16:32 2009 Subject: [Annelida] (Fwd) Ceylon Pearl Oyster Fisheries material Message-ID: <49ECF2C5.4993.1621D5@localhost> If anyone knows the depository please reply to the list also. Ta. GBR. ------- Forwarded message follows ------- Date sent: Mon, 20 Apr 2009 01:33:25 -0700 (PDT) From: Nechama Ben-Eliahu Subject: request for assistance To: Geoff Read Copies to: H.A.tenHove@uva.nl Hi Geoff, could you kindly post ? "Does anyone know where A. Willey's 1905 "Ceylon Pearl Oyster Fisheries" material is deposited? The Natural History Musum in London doesn't have it. ? ?If you know, and, more important, ?know the person to contact, please inform ? Nechama Ben-Eliahu at nbenelia@yahoo.com ? Many thanks in anticipation of your kind cooperation. ? ???????????????? best, ?????????????? Nechama ? ------- End of forwarded message ------- From g.read from niwa.co.nz Mon Apr 20 15:25:27 2009 From: g.read from niwa.co.nz (Geoff Read) Date: Mon Apr 20 15:28:44 2009 Subject: [Annelida] (Fwd) Ceylon Pearl Oyster Fisheries material In-Reply-To: <49ECF2C5.4993.1621D5@localhost> References: <49ECF2C5.4993.1621D5@localhost> Message-ID: <49ED82F7.8045.00D5.0@niwa.co.nz> Hi all, A mischievous pragmatist promptly suggested 'nowhere' was the location of this material, but let us explore the possibilities. I make the obvious suggestion; feel free to correct me. Arthur Willey was director of the Colombo Museum, Ceylon/Sri Lanka at the time of publication. That institute still exists. It has invertebrates, including "... a representative collection of polychetes - about 2,000 specimens." Interesting for sure! Worth investigating Nechama! Contact details are at the web site, and the zoology section is: http://www.museum.gov.lk/divisions-science-Zoology.php Note that species epithets "zeylanicus" etc refer to native fauna of Ceylon, and not Zeeland, or (Nieuw) Zeeland where I live. Cheers, Geoff > ------- Forwarded message follows ------- > Date sent: Mon, 20 Apr 2009 01:33:25 -0700 (PDT) > From: Nechama Ben-Eliahu > Subject: request for assistance > To: Geoff Read > Copies to: H.A.tenHove@uva.nl > > Hi Geoff, could you kindly post > > "Does anyone know where A. Willey's 1905 "Ceylon Pearl Oyster Fisheries" > material is deposited? The Natural History Musum in London doesn't have it. > > If you know, and, more important, know the person to contact, please > inform > > Nechama Ben-Eliahu at nbenelia@yahoo.com > > Many thanks in anticipation of your kind cooperation. > > best, > Nechama -- Geoff Read http://www.annelida.net/ http://www.niwascience.co.nz/ncabb/ About NIWA http://www.niwa.co.nz/about *************************** NIWA is the trading name of the National Institute of Water & Atmospheric Research Ltd. From gread from actrix.gen.nz Wed Apr 22 02:56:52 2009 From: gread from actrix.gen.nz (Geoff Read) Date: Wed Apr 22 02:58:57 2009 Subject: [Annelida] (Fwd) Ceylon Pearl Oyster Fisheries material Message-ID: <51817.202.36.29.1.1240387012.squirrel@my.actrix.co.nz> Yo, Continuing on our current interest in Arthur Willey, I noticed a cite to a biographical obituary at the Roy Soc UK. Kerr, J. G. 1943: Arthur Willey. 1867-1942. Obituary Notices of Fellows of the Royal Society (1932-1954) 4(12): 394-410. http://rsbm.royalsocietypublishing.org/content/obits/4/12 doi:10.1098/rsbm.1943.0011 Check it out maybe if you can. And it's published nearly 70 years ago so I don't think Roy Soc Publishing would mind if one of you also helpfully send me a copy for my research purposes. Thanks, Geoff -- Geoffrey B. Read, Ph.D. Wellington, NEW ZEALAND gread@actrix.gen.nz From gread from actrix.gen.nz Wed Apr 22 05:40:43 2009 From: gread from actrix.gen.nz (Geoff Read) Date: Wed Apr 22 05:45:26 2009 Subject: [Annelida] (Fwd) Ceylon Pearl Oyster Fisheries material In-Reply-To: <51817.202.36.29.1.1240387012.squirrel@my.actrix.co.nz> Message-ID: <49EF9CEB.3399.493EBB@localhost> I now have the pdf. Super quick. Thank you very much my friend in the North. Geoff On 22 Apr 2009 at 19:56, Geoff Read wrote: > Kerr, J. G. 1943: Arthur Willey. 1867-1942. Obituary Notices of Fellows > of the Royal Society (1932-1954) 4(12): 394-410. > > http://rsbm.royalsocietypublishing.org/content/obits/4/12 > doi:10.1098/rsbm.1943.0011 > > Check it out maybe if you can. And it's published nearly 70 years ago so I > don't think Roy Soc Publishing would mind if one of you also helpfully > send me a copy for my research purposes. From gil from ceab.csic.es Wed Apr 22 12:51:41 2009 From: gil from ceab.csic.es (Joao Gil) Date: Wed Apr 22 14:47:44 2009 Subject: [Annelida] Ceylon Pearl Oyster Fisheries publication and BHL In-Reply-To: <49ECF2C5.4993.1621D5@localhost> References: <49ECF2C5.4993.1621D5@localhost> Message-ID: <006301c9c372$feb2d270$b2fe6fa1@ALCAGOITA> Hello! I thought that maybe some of you would like to have the original Willey's publication discussed here: WILLEY, A. 1905. Report on the Polychaeta collected by Professor Herdman, at Ceylon, in 1902. Report to the Government of Ceylon on the Pearl Oyster Fisheries of the Gulf of Manaar, by W.A. Herdman, D.Sc., .R.S., P.L.S., with supplementary reports upon the Marine Biology of Ceylon, by Other Naturalists. Part IV. Supplementary Report 30: 243-324, 8 plates. You can find it at the Biodiversity Heritage Library. You can type in the search box "Report to the Government of Ceylon on the Pearl Oyster Fisheries of the Gulf of Manaar", then click in "pt. 4", and then go to page 243, or you can just click in the following link and then go to page 243: http://www.biodiversitylibrary.org/item/18248 The plates are just following the text. I would like to encourage all of you to use Biodiversity Heritage Library (BHL) and if you like it, to give it your support. It is really easy to use, you can make searches by authors, titles, taxa names or subjects, you can download the whole publications, or just part of them to a limit of 50 pages, it is connected with Internet Archive (so you will not be losing the possibility of locating publications in Internet Archive) and the plates are normally in good quality. Sometimes there are errors with some pages, so lets hope the error isn't just in the page you were looking for... I think there is the possibility to write them reporting the error you have found, but I confess that I never did it. For instance, in BHL you can find the plates of the Siboga volume on Amphinomidae Sergio was complaining about, in much better quality than in Internet Archive: http://www.biodiversitylibrary.org/item/18859 Besides, BHL is getting better, and what you can't find today, maybe you will be able to find in next month, as new titles are added almost daily (11,766 titles, 31,852 volumes, 12,855,318 pages just there, at the reach of your finger tips). You can find lots of the classics (Audouin & Milne Edwards, Grube, ?rsted, Johnston, the huge publication on capitellids by Eising in Fauna und Flora des Golfes von Neapel, more recent publications like the volumes on South African polychaetes by Day, and so on...). Besides seraching for the monographies, search also the journal titles for papers (like Archiv f?r Naturgeschichte for some of the classical Grube's papers, like his 1850's "Die Familien der Anneliden"). I don't know how many of you are directly involved in this project, but I would like to congratulate its authors and everybody that is giving finantial support to maintain and improve it. A good idea done in a wonderful way. Will BHL save taxonomy? I don't know, but it sure will help! I hope that this email has also helped, in some way... All the best, Jo?o ****************************************** Jo?o Gil CEAB-CSIC Carrer d'acc?s a la Cala Sant Francesc, 14 E-17300 BLANES (GIRONA) SPAIN Email: gil@ceab.csic.es Telef. (34) 972.33.61.01 Fax: (34) 972.33.78.06 -----Mensaje original----- De: annelida-bounces@oat.bio.indiana.edu [mailto:annelida-bounces@oat.bio.indiana.edu] En nombre de Geoff Read Enviado el: lunes, 20 de abril de 2009 12:10 Para: annelida@magpie.bio.indiana.edu Asunto: [Annelida] (Fwd) Ceylon Pearl Oyster Fisheries material If anyone knows the depository please reply to the list also. Ta. GBR. ------- Forwarded message follows ------- Date sent: Mon, 20 Apr 2009 01:33:25 -0700 (PDT) From: Nechama Ben-Eliahu Subject: request for assistance To: Geoff Read Copies to: H.A.tenHove@uva.nl Hi Geoff, could you kindly post ? "Does anyone know where A. Willey's 1905 "Ceylon Pearl Oyster Fisheries" material is deposited? The Natural History Musum in London doesn't have it. ? ?If you know, and, more important, ?know the person to contact, please inform ? Nechama Ben-Eliahu at nbenelia@yahoo.com ? Many thanks in anticipation of your kind cooperation. ? ???????????????? best, ?????????????? Nechama ? ------- End of forwarded message ------- From g.read from niwa.co.nz Thu Apr 23 23:05:41 2009 From: g.read from niwa.co.nz (Geoff Read) Date: Thu Apr 23 23:08:30 2009 Subject: [Annelida] Ceylon Pearl Oyster Fisheries publication and BHL In-Reply-To: <006301c9c372$feb2d270$b2fe6fa1@ALCAGOITA> References: <49ECF2C5.4993.1621D5@localhost> <006301c9c372$feb2d270$b2fe6fa1@ALCAGOITA> Message-ID: <49F1E354.8045.00D5.0@niwa.co.nz> >>> On 23/04/2009 at 5:51 a.m., "Joao Gil" wrote: > I would like to encourage all of you to use Biodiversity Heritage Library > (BHL) and if you like it, to give it your support. It is really easy to use, > you can make searches by authors, titles, taxa names or subjects, you can > download the whole publications, or just part of them to a limit of 50 > pages, it is connected with Internet Archive (so you will not be losing the Well, it is marvellous I agree. And what a difference to the way we work pdf's have made! Throw away those paper reprints (well not quite a good idea yet). A couple of comments just on practical usage matters of BHL. My experience is that if one uses the current facility to download just a selected group of pages the resulting pdf created lacks the OCR recognised text of the complete file, and cannot be subsequently OCR'd in Adobe Acrobat professional (at least in the v8 version of it I have - maybe later version handle it ok) - one gets an error message that the text is already recognised. (There is an option to include OCR in the download but this just gives a separate copy of the text, not integrated with the original image). Depends what you want, but mostly people will prefer OCR recognised text matched to the image. So I find it better to download the complete file, then extract the pages I want on my own pc. But Adobe Acrobat can get confused by the sets of plates and the preambles both of which don't have page numbers recognised in the files. A bit of trial and error is needed to get the right pages. I think McIntosh 1885 Challenger expedition is not yet online at BHL (there is another site which serves it up page by page only), and only two of the McIntosh Ray Society 'British annelids' are online (at www.archive.org). Will be good to get all those eventually. Geoff -- Geoff Read http://www.annelida.net/ http://www.niwa.co.nz/about-niwa *************************** NIWA is the trading name of the National Institute of Water & Atmospheric Research Ltd. From pljuscheva from mail.ru Fri Apr 24 08:49:29 2009 From: pljuscheva from mail.ru (=?koi8-r?Q?=ED=C1=DB=C1_=F0=CC=C0=DD=C5=D7=C1?=) Date: Fri Apr 24 14:54:15 2009 Subject: [Annelida] Internal fertilization in Terebellidae Message-ID: Dear collegues, Did anybody anywhere met any information on casas of internal fertilization in Terebellidae. I would be greatly appreciated for any kind of information. Best regards, Masha Masha Plyuscheva, PhD Recearch Fellow Center for Advanced Studies (CEAB, CSIC) Acc Cala St. Francesc 14 17300 Blanes (Girona) Catalunia (Spain) Ph: + 34 972 336 101 Fax: + 34 972 337 806 From salvador.herrando-perez from adelaide.edu.au Fri Apr 24 18:12:02 2009 From: salvador.herrando-perez from adelaide.edu.au (Salvador Herrando-Perez) Date: Fri Apr 24 22:33:31 2009 Subject: [Annelida] Internal fertilization in Terebellidae In-Reply-To: References: Message-ID: <001a01c9c532$13c5b310$3b511930$@herrando-perez@adelaide.edu.au> Hi Maua, please check if the following references are of any use to you. I have ignored the Dani?s papers on the topic since you may have them all. Regards, Salva Molecular analysis indicates gene flow among populations of Paralvinella pandorae Desbruyeres and Laubier 1986 (Alvinellidae, Terebellida), a polychaete annelid endemic to hydrothermal vents of the northeast PacificAuthor(s): Knowles JD, Wenink E, Schult N, Tunnicliffe V, McHugh D Source: MARINE ECOLOGY-AN EVOLUTIONARY PERSPECTIVE Volume: 26 Issue: 3-4 Pages: 216-222 Published: SEP-DEC 2005 Abstract: The polychaete annelid Paralvinella pandorae Desbruyeres and Laubier 1986 is endemic to hydrothermal vents in the northeast Pacific, and is found at almost all vents sites along the 500-km long Juan de Fuca ridge (JdF) system. The sperm morphology of P. pandorae indicates that fertilization occurs internally or in the worm's tube, and the maximum observed oocyte size of 215 mu m suggests that a dispersive larval phase is short or non-existent. Size frequency analyses of populations of P. pandorae suggest continuous or semi-continuous recruitment of juveniles. Given Our limited knowledge of the species' life history, we predicted that populations of P. pandorae would exhibit a decline in genetic similarity with increasing distance among populations along the JdE While our attempts to use amplified fragment length polymorphisms to test this prediction were not successful, our analysis of cytochrome oxidase I gene sequences provided insights into the phylogeography of the species. For 31 individuals from five sites along the JdF there is little sequence variation among individuals and no phylogeographic pattern among haplotypes from populations separated by distances of Lip to 210 km. These results indicate that gene flow occurs among all sites in the analyses, i.e. despite the very limited dispersal potential inferred from life history characteristics of this worm, there is no evidence for isolation-by-distance across the geographical scale of the study. Demersal larvae dispersed by near-bottom currents might explain the gene flow among sites, as well as the establishment of populations of P. pandorae at new vents within a year. Oogenesis characteristics in the hydrothermal vent polychaete Alvinella pompejanaAuthor(s): Pradillon F, Gaill F Source: INVERTEBRATE REPRODUCTION & DEVELOPMENT Volume: 43 Issue: 3 Pages: 223-235 Published: JUL 2003 Times Cited: 2 References: 35 Citation Map Abstract: The morphology of the female genital tract and mechanisms of oogenesis were investigated through light and transmission electron microscopy in the vent polychaete Alvinella pompejana. We showed that the genital pore exhibits different morphologies in males and females and can be used for sex identification. The female genital tract consists of two oviducts that contain mature oocytes and spermathecae, which may contain a few unfertilised oocytes, and simultaneously spermatozoa. Ultrastructural analysis of both coelomic and genital tract oocytes showed that vitellogenesis is mostly achieved in the coelomic cavity, apparently without helper cells, and involves autosynthetic mechanisms of yolk production. Such a mechanism suggests that egg growth is slow. It is commonly admitted that hydrothermal environments are unpredictable and highly variable, and thus, may favour species that are able to produce eggs rapidly facing environmental changes. As Alvinella pompejana does not seem to follow such a reproductive pattern, we hypothesised that the reproductive process may be considered as a two-step process where only the second one would be directly influenced by the environment. First, coelomic vitellogenesis would be a relatively slow process, regulated physiologically independently of abrupt environmental changes. In the second step, mature eggs would be selected and stored for further spawning and fertilisation, at any time triggered by environmental cues or biological signal such as sperm transfer. REPRODUCTIVE-BIOLOGY AND POPULATION-STRUCTURE OF THE DEEP-SEA HYDROTHERMAL VENT WORM PARALVINELLA-GRASSLEI (POLYCHAETA, ALVINELLIDAE) AT 13-DEGREES-N ON THE EAST PACIFIC RISEAuthor(s): ZAL F, JOLLIVET D, CHEVALDONNE P, DESBRUYERES D Source: MARINE BIOLOGY Volume: 122 Issue: 4 Pages: 637-648 Published: JUN 1995 Times Cited: 39 References: 57 Citation Map Abstract: Paralvinella grasslei is a polychaetous annelid living in the harsh, unstable and heterogeneous environmental conditions found at deep-sea hydrothermal vent sites in the eastern Pacific. The aim of this work was to examine the possible influence of the reproductive biology of P. grasslei on the structure of its populations. Maximum observed oocyte size inside the oviduct is 275 mu m, and fecundity is relatively low. Examination of gametes and young specimens suggested a direct benthic development for this species. The population structure of P. grasslei at 13 degrees N/EPR (EPR = East Pacific Rise) revealed a discontinuous recruitment which seems to be synchronized within vent sites and fields. The data also suggested the occurrence of discrete breeding periods. P. grasslei probably reproduces several times a year, with an apparent periodicity. Tidal signals could be a possible cue for the coordination of the reproductive cycle. The life-history of P. grasslei is discussed in light of the reproductive biology of other terebellomorph polychaetes, and seems to be well adapted for colonizing the unstable environment of hot vents. Two main hypotheses can explain the dissemination processes of this species along axial oceanic ridges. The influence of near-bottom currents occurring along the central ''graben'' of the East Pacific Rise can be considered to account for part of the transport of larvae and juveniles, but the observations of polychaete erpochaetes on the test of hydrothermal bythograeid crabs and evidence that crab migrations occur between vents also support the possibility of zoochory for the dissemination of alvinellid polychaetes. ULTRASTRUCTURE OF SPERMATIDS AND SPERMATOZOA IN RAMEX-CALIFORNIENSIS AND NICOLEA-ZOSTERICOLA (TEREBELLIDAE, POLYCHAETA)Author(s): ROUSE GW, MCHUGH D Source: OPHELIA Volume: 39 Issue: 3 Pages: 225-238 Published: AUG 1994 Abstract: The ultrastructure of the spermatozoa and some stages of spermiogenesis in Ramex californiensis Hartman, 1944 and Nicolea zostericola (Orsted, 1844) is described. Both species brood direct developing larvae, N. zostericola outside the tube in a jelly mass, and R. californiensis inside the tube in a cocoon. In both species, spermatids were seen in large groups of synchronously developing cells. Each spermatid was connected via a cytoplasmic bridge to a central cytophore. The acrosome initially developed at the posterior end of the spermatid near the centrioles. It then migrated to the anterior end of the sperm at the tip of the nucleus; in N. zostericola the migration was much later than in R. californiensis. No microtubular activity was involved in spermiogenesis. The mature sperm nuclei of R. californiensis and N. zostericola were basically cylindrical and elongate, measuring 9 mum and 10 mum in length, respectively. In both species the acrosome was bullet-shaped, although in N. zostericola the subacrosomal space was proportionally much larger, and there were two regions of differing electron density. There was no sperm midpiece in either species. Instead the mitochondria lay in grooves along the posterior region of the nucleus; 2 mitochondria in R. californiensis sperm and 4 mitochondria in N. zostericola. The anchoring apparatus for the sperm of each species consisted of both the proximal and distal centrioles, and a complex satellite apparatus arising from the distal centriole. The morphology of the sperm is compared with other polychaetes; functional aspects and systematic implications are discussed. The close similarity of the sperm between N. zostericola and R. californiensis does suggest a similar fertilization mechanism is used by the two species. Until a phylogenetic hypothesis for the Terebellidae is developed the evolutionary change in sperm morphology and functional correlates with other factors in reproduction cannot be determined. A COMPARATIVE-STUDY OF REPRODUCTION AND DEVELOPMENT IN THE POLYCHAETE FAMILY TEREBELLIDAEAuthor(s): MCHUGH D Source: BIOLOGICAL BULLETIN Volume: 185 Issue: 2 Pages: 153-167 Published: OCT 1993 Abstract: The reproduction and development of four species of terebellid polychaetes from the west coast of North America were studied and compared with several other terebellid species to reveal the covariation of life history traits in the group, and assess any limitations on terebellid life history evolution that may be imposed by ancestry or body design. The four species in the present study span the range of reproductive and developmental modes known for the family Terebellidae. Eupolymnia crescentis and Neoamphitrite robusta are both free spawners that reproduce during discrete 3-month breeding periods. In E. crescentis, oogenesis takes from 5 to 8 months and spawning occurs from July to September, maximum oocyte diameter is 210 mum, and fecundity reaches approximately 128,500 during a single breeding period. The E. crescentis larva develops near the bottom for about 7 days before settling as a five-setiger juvenile. Neoamphitrite robusta reproduces from April to July after a 12-month oogenic cycle; oocytes in this species measure up to 180 mum, and fecundity reaches approximately 830,000. The two brooders in the study, Ramex californiensis and Thelepus crispus, brood their larvae in the maternal tube. T. crispus reproduces continuously for at least 6 months, and has up to 51,500 larvae in a single brood. The oocytes in this species (400 mum) give rise to larvae that are brooded to the one-setiger stage and then emerge to undergo a one-day planktonic period before the larvae settle and become juveniles at eight setigers. Ramex californiensis reproduces continuously year round; larvae are brooded in cocoons that are laid sequentially in the tube, with up to 44 larvae in a single cocoon. Development from the 4 1 0 mum oocytes is direct, and juveniles have 11 setigers. Unlike E. crescentis and N. robusta, in which oogenesis is synchronized within individuals to produce a peak of large oocytes during the discrete spawning period, R. californiensis and T. crispus females have a wide range of oocyte sizes throughout the year. Correlation analysis and analysis of variance of reproductive and developmental traits of these and several other terebellid species revealed some expected trends. For example, egg size varies according to the mode of reproduction (free spawning, extratubular brooding, or intratubular brooding), and is also correlated with juvenile size. However, egg size does not predict fecundity in terebellids when body size is held constant, and brooding is not restricted to small-bodied species. Indeed, the largest and smallest species in the study brood their larvae intratubularly, suggesting that allometric constraints may not be important in determining mode of reproduction in these polychaetes. The Terebellidae is a diverse family found in all marine habitats, yet all known terebellid larvae are non-feeding; this contrasts with the occurrence of both planktotrophy and lecithotrophy in other polychaete families, and leads to the proposal that larval development in terebellids has been constrained during the evolution of the lineage. The results of this study demonstrate that generalizations regarding complex relationships among life history traits are often inappropriate. The need for more comparative studies of marine invertebrate reproduction and development, and the integration of phylogenetic analyses into the study of life history evolution in marine invertebrates is highlighted. LARVAL DEVELOPMENT OF POLYCHAETA FROM THE NORTHERN CALIFORNIA COAST V RAMEX-CALIFORNIENSIS HARTMAN (POLYCHAETA, TEREBELLIDAE)Author(s): BLAKE JA Source: BULLETIN OF MARINE SCIENCE Volume: 48 Issue: 2 Pages: 448-460 Published: MAR 1991 Abstract: Ramex californiensis is a small intertidal terebellid polychaete that lives in rocky habitats on the northern California coast. The species is abundant under colonies of encrusting tunicates in the low intertidal zone on rocks protected from the surf. The tubes are formed of coarse mucoid secretions covered with sand, shell, and algal fragments. Large elongated, white eggs ranging from 270 to 330-mu-m (XBAR = 292-mu-m) are deposited by females in capsules within the tubes. Up to 16 eggs or embryos have been observed in a single capsule. One, two, or three capsules may be found in a single tube. When multiple capsules are present, the embryos contained in separate capsules are always at different stages of development, indicating sequential fertilizations and egg deposition. Pair formation between males and females was not observed. Development is direct and occurs entirely within the capsules. The earliest larval stages are covered with cilia and bear a pair of red, granular eyes. The anterior and posterior ends elongate and the cilia become restricted to an anterior band. The oral structures develop early, with the differentiation of a ciliated vestibule and development of a medial tentacle on the anterior end of the prostomium. The tentacle assists movement within the capsule during their early development. Two additional tentacles appear lateral to the original medial tentacle and develop each a ciliated groove. The latest encapsulated stages have three grooved tentacles, 10-11 segments (eight with capillary notosetae; none with uncini), and a fully developed digestive tract containing remants of yolk. Upon release from the capsule, an additional pair of tentacles develops and uncini first appear on setiger 3. Juveniles were maintained on cultures of unicellular algae covering the bottoms of the culture dishes. The worms grazed upon these algae by sweeping their tentacles over the bottom where they pick up the cells and transport them to the vestibule. Juveniles secrete thin mucous tubes. Title: DIVERSITY IN REPRODUCTIVE-ORGANS AND REPRODUCTION IN PACIFIC TEREBELLID POLYCHAETES Author(s): SMITH RI Source: AMERICAN ZOOLOGIST Volume: 29 Issue: 4 Pages: A117-A117 Published: 1989 A COMPARATIVE-STUDY OF REPRODUCTIVE ENERGETICS IN 2 POPULATIONS OF THE TEREBELLID POLYCHAETE EUPOLYMNIA-NEBULOSA MONTAGU WITH DIFFERENT REPRODUCTIVE MODESAuthor(s): GREMARE A Source: JOURNAL OF EXPERIMENTAL MARINE BIOLOGY AND ECOLOGY Volume: 96 Issue: 3 Pages: 287-302 Published: MAY 1986 ---------------------------------------------------------------------------- ------------------------- Salvador Herrando-P?rez > > School of Earth and Environmental Science, Mawson Building > University of Adelaide, South Australia 5005, Australia > > Phone: +61 8 8303 5254 > Fax: +61 8 8303 4347 > Email: salvador.herrando-perez@adelaide.edu.au > https://www.adelaide.edu.au/directory/salvador.herrando-perez -----Original Message----- From: annelida-bounces@oat.bio.indiana.edu [mailto:annelida-bounces@oat.bio.indiana.edu] On Behalf Of ???? ??????? Sent: 24 April 2009 23:19 To: Annelida@magpie.bio.indiana.edu Subject: [Annelida] Internal fertilization in Terebellidae Dear collegues, Did anybody anywhere met any information on casas of internal fertilization in Terebellidae. I would be greatly appreciated for any kind of information. Best regards, Masha Masha Plyuscheva, PhD Recearch Fellow Center for Advanced Studies (CEAB, CSIC) Acc Cala St. Francesc 14 17300 Blanes (Girona) Catalunia (Spain) Ph: + 34 972 336 101 Fax: + 34 972 337 806 _______________________________________________ Annelida mailing list Post: Annelida@net.bio.net Help/archive: http://www.bio.net/biomail/listinfo/annelida Resources: http://www.annelida.net -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.bio.net/bionet/mm/annelida/attachments/20090425/d76388d8/attachment.html From g.read from niwa.co.nz Sat Apr 25 02:34:04 2009 From: g.read from niwa.co.nz (Geoff Read) Date: Sat Apr 25 02:36:48 2009 Subject: [Annelida] Adobe 8 bug fix Re Biodiverity Heritage Library files In-Reply-To: <49F1E354.8045.00D5.0@niwa.co.nz> References: <49ECF2C5.4993.1621D5@localhost> <006301c9c372$feb2d270$b2fe6fa1@ALCAGOITA> <49F1E354.8045.00D5.0@niwa.co.nz> Message-ID: <49F365AC.8045.00D5.0@niwa.co.nz> Hi folks, A follow-up re OCR problems in Adobe. The bug I described in Acrobat 8 Professional is the "Contains Renderable Text" error message that prevents OCR of certain files. If it occurs for you see this page for why it happens, and a work-around (not practical for large files): http://acrobatsupport.com/document-contains-renderable-text/ It is apparently mostly fixed in a Acrobat 8.1 Update: http://blogs.adobe.com/acrolaw/2007/06/acrobat_81_update_fix_for_render.html and there are later updates. Geoff >>> On 24/04/2009 at 4:05 p.m., "Geoff Read" wrote: > A couple of comments just on practical usage matters of BHL. My experience > is that if one uses the current facility to download just a selected group of > pages the resulting pdf created lacks the OCR recognised text of the complete > file, and cannot be subsequently OCR'd in Adobe Acrobat professional (at > least in the v8 version of it I have - maybe later version handle it ok) - one > gets an error message that the text is already recognised. (There is an > option to include OCR in the download but this just gives a separate copy of > the text, not integrated with the original image). -- Geoff Read http://www.annelida.net/ http://www.niwa.co.nz/about-niwa *************************** NIWA is the trading name of the National Institute of Water & Atmospheric Research Ltd. From pljuscheva from mail.ru Mon Apr 27 08:16:23 2009 From: pljuscheva from mail.ru (=?koi8-r?Q?=ED=C1=DB=C1_=F0=CC=C0=DD=C5=D7=C1?=) Date: Mon Apr 27 14:40:24 2009 Subject: [Annelida] Re: Internal fertilization in Terebellidae Message-ID: Dear collegues, Thanks a lot for help with information. Best regards, Masha Masha Plyuscheva, PhD Recearch Fellow Center for Advanced Studies (CEAB, CSIC) Acc Cala St. Francesc 14 17300 Blanes (Girona) Catalunia (Spain) Ph: + 34 972 336 101 Fax: + 34 972 337 806 From pierre.chevaldonne from univmed.fr Mon Apr 27 04:57:39 2009 From: pierre.chevaldonne from univmed.fr (Pierre CHEVALDONNE) Date: Mon Apr 27 14:41:46 2009 Subject: [Annelida] Internal fertilization in Terebellidae In-Reply-To: <001a01c9c532$13c5b310$3b511930$@herrando-perez@adelaide.ed u.au> References: <001a01c9c532$13c5b310$3b511930$@herrando-perez@adelaide.edu.au> Message-ID: <7.0.1.0.0.20090427115133.0198d600@univmed.fr> Dear Masha, Alvinella and Paralvinella are not exactly Terebellidae, so this may not be what you're looking for. However, they are closely related to them, so Salva was right to point this literature to you. There are more papers on alvinellids if you're interested, all suggesting internal fertilization, but as far as I know, I think it's only indirect evidence. You can find such papers in the regular databases, but if you wish, I can list them to you. Regards Pierre At 01:12 25/04/2009, Salvador Herrando-Perez wrote: >Hi Maua, please check if the following >references are of any use to you. I have ignored >the Dani?s papers on the topic since you may have them all. Regards, Salva > >Molecular analysis indicates gene flow among >populations of Paralvinella pandorae Desbruyeres >and Laubier 1986 (Alvinellidae, Terebellida), a >polychaete annelid endemic to hydrothermal vents >of the northeast PacificAuthor(s): Knowles JD, >Wenink E, Schult N, Tunnicliffe V, McHugh D >Source: MARINE ECOLOGY-AN EVOLUTIONARY >PERSPECTIVE Volume: 26 Issue: >3-4 Pages: 216-222 Published: SEP-DEC >2005 Abstract: The polychaete annelid >Paralvinella pandorae Desbruyeres and Laubier >1986 is endemic to hydrothermal vents in the >northeast Pacific, and is found at almost all >vents sites along the 500-km long Juan de Fuca >ridge (JdF) system. The sperm morphology of P. >pandorae indicates that fertilization occurs >internally or in the worm's tube, and the >maximum observed oocyte size of 215 mu m >suggests that a dispersive larval phase is short >or non-existent. Size frequency analyses of >populations of P. pandorae suggest continuous or >semi-continuous recruitment of juveniles. Given >Our limited knowledge of the species' life >history, we predicted that populations of P. >pandorae would exhibit a decline in genetic >similarity with increasing distance among >populations along the JdE While our attempts to >use amplified fragment length polymorphisms to >test this prediction were not successful, our >analysis of cytochrome oxidase I gene sequences >provided insights into the phylogeography of the >species. For 31 individuals from five sites >along the JdF there is little sequence variation >among individuals and no phylogeographic pattern >among haplotypes from populations separated by >distances of Lip to 210 km. These results >indicate that gene flow occurs among all sites >in the analyses, i.e. despite the very limited >dispersal potential inferred from life history >characteristics of this worm, there is no >evidence for isolation-by-distance across the >geographical scale of the study. Demersal larvae >dispersed by near-bottom currents might explain >the gene flow among sites, as well as the >establishment of populations of P. pandorae at new vents within a year. > >Oogenesis characteristics in the hydrothermal >vent polychaete Alvinella pompejanaAuthor(s): >Pradillon F, Gaill F Source: INVERTEBRATE >REPRODUCTION & DEVELOPMENT Volume: >43 Issue: 3 Pages: 223-235 Published: >JUL 2003 Times Cited: 2 References: >35 Citation Map Abstract: The morphology >of the female genital tract and mechanisms of >oogenesis were investigated through light and >transmission electron microscopy in the vent >polychaete Alvinella pompejana. We showed that >the genital pore exhibits different morphologies >in males and females and can be used for sex >identification. The female genital tract >consists of two oviducts that contain mature >oocytes and spermathecae, which may contain a >few unfertilised oocytes, and simultaneously >spermatozoa. Ultrastructural analysis of both >coelomic and genital tract oocytes showed that >vitellogenesis is mostly achieved in the >coelomic cavity, apparently without helper >cells, and involves autosynthetic mechanisms of >yolk production. Such a mechanism suggests that >egg growth is slow. It is commonly admitted that >hydrothermal environments are unpredictable and >highly variable, and thus, may favour species >that are able to produce eggs rapidly facing >environmental changes. As Alvinella pompejana >does not seem to follow such a reproductive >pattern, we hypothesised that the reproductive >process may be considered as a two-step process >where only the second one would be directly >influenced by the environment. First, coelomic >vitellogenesis would be a relatively slow >process, regulated physiologically independently >of abrupt environmental changes. In the second >step, mature eggs would be selected and stored >for further spawning and fertilisation, at any >time triggered by environmental cues or >biological signal such as sperm transfer. > >REPRODUCTIVE-BIOLOGY AND POPULATION-STRUCTURE OF >THE DEEP-SEA HYDROTHERMAL VENT WORM >PARALVINELLA-GRASSLEI (POLYCHAETA, ALVINELLIDAE) >AT 13-DEGREES-N ON THE EAST PACIFIC >RISEAuthor(s): ZAL F, JOLLIVET D, CHEVALDONNE P, >DESBRUYERES D Source: MARINE BIOLOGY Volume: >122 Issue: 4 Pages: 637-648 Published: >JUN 1995 Times Cited: 39 References: >57 Citation Map Abstract: Paralvinella >grasslei is a polychaetous annelid living in the >harsh, unstable and heterogeneous environmental >conditions found at deep-sea hydrothermal vent >sites in the eastern Pacific. The aim of this >work was to examine the possible influence of >the reproductive biology of P. grasslei on the >structure of its populations. Maximum observed >oocyte size inside the oviduct is 275 mu m, and >fecundity is relatively low. Examination of >gametes and young specimens suggested a direct >benthic development for this species. The >population structure of P. grasslei at 13 >degrees N/EPR (EPR = East Pacific Rise) revealed >a discontinuous recruitment which seems to be >synchronized within vent sites and fields. The >data also suggested the occurrence of discrete >breeding periods. P. grasslei probably >reproduces several times a year, with an >apparent periodicity. Tidal signals could be a >possible cue for the coordination of the >reproductive cycle. The life-history of P. >grasslei is discussed in light of the >reproductive biology of other terebellomorph >polychaetes, and seems to be well adapted for >colonizing the unstable environment of hot >vents. Two main hypotheses can explain the >dissemination processes of this species along >axial oceanic ridges. The influence of >near-bottom currents occurring along the central >''graben'' of the East Pacific Rise can be >considered to account for part of the transport >of larvae and juveniles, but the observations of >polychaete erpochaetes on the test of >hydrothermal bythograeid crabs and evidence that >crab migrations occur between vents also support >the possibility of zoochory for the dissemination of alvinellid polychaetes. > >ULTRASTRUCTURE OF SPERMATIDS AND SPERMATOZOA IN >RAMEX-CALIFORNIENSIS AND NICOLEA-ZOSTERICOLA >(TEREBELLIDAE, POLYCHAETA)Author(s): ROUSE GW, >MCHUGH D Source: OPHELIA Volume: 39 Issue: >3 Pages: 225-238 Published: AUG >1994 Abstract: The ultrastructure of the >spermatozoa and some stages of spermiogenesis in >Ramex californiensis Hartman, 1944 and Nicolea >zostericola (Orsted, 1844) is described. Both >species brood direct developing larvae, N. >zostericola outside the tube in a jelly mass, >and R. californiensis inside the tube in a >cocoon. In both species, spermatids were seen in >large groups of synchronously developing cells. >Each spermatid was connected via a cytoplasmic >bridge to a central cytophore. The acrosome >initially developed at the posterior end of the >spermatid near the centrioles. It then migrated >to the anterior end of the sperm at the tip of >the nucleus; in N. zostericola the migration was >much later than in R. californiensis. No >microtubular activity was involved in >spermiogenesis. The mature sperm nuclei of R. >californiensis and N. zostericola were basically >cylindrical and elongate, measuring 9 mum and 10 >mum in length, respectively. In both species the >acrosome was bullet-shaped, although in N. >zostericola the subacrosomal space was >proportionally much larger, and there were two >regions of differing electron density. There was >no sperm midpiece in either species. Instead the >mitochondria lay in grooves along the posterior >region of the nucleus; 2 mitochondria in R. >californiensis sperm and 4 mitochondria in N. >zostericola. The anchoring apparatus for the >sperm of each species consisted of both the >proximal and distal centrioles, and a complex >satellite apparatus arising from the distal >centriole. The morphology of the sperm is >compared with other polychaetes; functional >aspects and systematic implications are >discussed. The close similarity of the sperm >between N. zostericola and R. californiensis >does suggest a similar fertilization mechanism >is used by the two species. Until a phylogenetic >hypothesis for the Terebellidae is developed the >evolutionary change in sperm morphology and >functional correlates with other factors in reproduction cannot be determined. > >A COMPARATIVE-STUDY OF REPRODUCTION AND >DEVELOPMENT IN THE POLYCHAETE FAMILY >TEREBELLIDAEAuthor(s): MCHUGH D Source: >BIOLOGICAL BULLETIN Volume: 185 Issue: >2 Pages: 153-167 Published: OCT >1993 Abstract: The reproduction and >development of four species of terebellid >polychaetes from the west coast of North America >were studied and compared with several other >terebellid species to reveal the covariation of >life history traits in the group, and assess any >limitations on terebellid life history evolution >that may be imposed by ancestry or body design. >The four species in the present study span the >range of reproductive and developmental modes >known for the family Terebellidae. Eupolymnia >crescentis and Neoamphitrite robusta are both >free spawners that reproduce during discrete >3-month breeding periods. In E. crescentis, >oogenesis takes from 5 to 8 months and spawning >occurs from July to September, maximum oocyte >diameter is 210 mum, and fecundity reaches >approximately 128,500 during a single breeding >period. The E. crescentis larva develops near >the bottom for about 7 days before settling as a >five-setiger juvenile. Neoamphitrite robusta >reproduces from April to July after a 12-month >oogenic cycle; oocytes in this species measure >up to 180 mum, and fecundity reaches >approximately 830,000. The two brooders in the >study, Ramex californiensis and Thelepus >crispus, brood their larvae in the maternal >tube. T. crispus reproduces continuously for at >least 6 months, and has up to 51,500 larvae in a >single brood. The oocytes in this species (400 >mum) give rise to larvae that are brooded to the >one-setiger stage and then emerge to undergo a >one-day planktonic period before the larvae >settle and become juveniles at eight setigers. >Ramex californiensis reproduces continuously >year round; larvae are brooded in cocoons that >are laid sequentially in the tube, with up to 44 >larvae in a single cocoon. Development from the >4 1 0 mum oocytes is direct, and juveniles have >11 setigers. Unlike E. crescentis and N. >robusta, in which oogenesis is synchronized >within individuals to produce a peak of large >oocytes during the discrete spawning period, R. >californiensis and T. crispus females have a >wide range of oocyte sizes throughout the year. > >Correlation analysis and analysis of variance of >reproductive and developmental traits of these >and several other terebellid species revealed >some expected trends. For example, egg size >varies according to the mode of reproduction >(free spawning, extratubular brooding, or >intratubular brooding), and is also correlated >with juvenile size. However, egg size does not >predict fecundity in terebellids when body size >is held constant, and brooding is not restricted >to small-bodied species. Indeed, the largest and >smallest species in the study brood their larvae >intratubularly, suggesting that allometric >constraints may not be important in determining >mode of reproduction in these polychaetes. The >Terebellidae is a diverse family found in all >marine habitats, yet all known terebellid larvae >are non-feeding; this contrasts with the >occurrence of both planktotrophy and >lecithotrophy in other polychaete families, and >leads to the proposal that larval development in >terebellids has been constrained during the >evolution of the lineage. The results of this >study demonstrate that generalizations regarding >complex relationships among life history traits >are often inappropriate. The need for more >comparative studies of marine invertebrate >reproduction and development, and the >integration of phylogenetic analyses into the >study of life history evolution in marine invertebrates is highlighted. > >LARVAL DEVELOPMENT OF POLYCHAETA FROM THE >NORTHERN CALIFORNIA COAST V RAMEX-CALIFORNIENSIS >HARTMAN (POLYCHAETA, TEREBELLIDAE)Author(s): >BLAKE JA Source: BULLETIN OF MARINE >SCIENCE Volume: 48 Issue: 2 Pages: >448-460 Published: MAR 1991 Abstract: Ramex >californiensis is a small intertidal terebellid >polychaete that lives in rocky habitats on the >northern California coast. The species is >abundant under colonies of encrusting tunicates >in the low intertidal zone on rocks protected >from the surf. The tubes are formed of coarse >mucoid secretions covered with sand, shell, and >algal fragments. Large elongated, white eggs >ranging from 270 to 330-mu-m (XBAR = 292-mu-m) >are deposited by females in capsules within the >tubes. Up to 16 eggs or embryos have been >observed in a single capsule. One, two, or three >capsules may be found in a single tube. When >multiple capsules are present, the embryos >contained in separate capsules are always at >different stages of development, indicating >sequential fertilizations and egg deposition. >Pair formation between males and females was not >observed. Development is direct and occurs >entirely within the capsules. The earliest >larval stages are covered with cilia and bear a >pair of red, granular eyes. The anterior and >posterior ends elongate and the cilia become >restricted to an anterior band. The oral >structures develop early, with the >differentiation of a ciliated vestibule and >development of a medial tentacle on the anterior >end of the prostomium. The tentacle assists >movement within the capsule during their early >development. Two additional tentacles appear >lateral to the original medial tentacle and >develop each a ciliated groove. The latest >encapsulated stages have three grooved >tentacles, 10-11 segments (eight with capillary >notosetae; none with uncini), and a fully >developed digestive tract containing remants of >yolk. Upon release from the capsule, an >additional pair of tentacles develops and uncini >first appear on setiger 3. Juveniles were >maintained on cultures of unicellular algae >covering the bottoms of the culture dishes. The >worms grazed upon these algae by sweeping their >tentacles over the bottom where they pick up the >cells and transport them to the vestibule. Juveniles secrete thin mucous tubes. > >Title: DIVERSITY IN REPRODUCTIVE-ORGANS AND >REPRODUCTION IN PACIFIC TEREBELLID POLYCHAETES > >Author(s): SMITH RI > >Source: AMERICAN ZOOLOGIST Volume: 29 Issue: >4 Pages: A117-A117 Published: 1989 > >A COMPARATIVE-STUDY OF REPRODUCTIVE ENERGETICS >IN 2 POPULATIONS OF THE TEREBELLID POLYCHAETE >EUPOLYMNIA-NEBULOSA MONTAGU WITH DIFFERENT >REPRODUCTIVE MODESAuthor(s): GREMARE A Source: >JOURNAL OF EXPERIMENTAL MARINE BIOLOGY AND >ECOLOGY Volume: 96 Issue: 3 Pages: 287-302 Published: MAY 1986 > > >----------------------------------------------------------------------------------------------------- > > >Salvador Herrando-P?rez > > > > > > School of Earth and Environmental Science, Mawson Building > > > University of Adelaide, South Australia 5005, Australia > > > > > > Phone: +61 8 8303 5254 > > > Fax: +61 8 8303 4347 > > > Email: salvador.herrando-perez@adelaide.edu.au > > > > https://www.adelaide.edu.au/directory/salvador.herrando-perez > >-----Original Message----- > >From: annelida-bounces@oat.bio.indiana.edu >[mailto:annelida-bounces@oat.bio.indiana.edu] >On Behalf Of ???? ??????? > >Sent: 24 April 2009 23:19 > >To: Annelida@magpie.bio.indiana.edu > >Subject: [Annelida] Internal fertilization in Terebellidae > >Dear collegues, > >Did anybody anywhere met any information on >casas of internal fertilization in Terebellidae. > >I would be greatly appreciated for any kind of information. > >Best regards, > >Masha > >Masha Plyuscheva, PhD > >Recearch Fellow > >Center for Advanced Studies (CEAB, CSIC) > >Acc Cala St. Francesc 14 > >17300 Blanes (Girona) > >Catalunia (Spain) > >Ph: + 34 972 336 101 > >Fax: + 34 972 337 806 > >_______________________________________________ > >Annelida mailing list > >Post: Annelida@net.bio.net > >Help/archive: >http://www.bio.net/biomail/listinfo/annelida > >Resources: http://www.annelida.net >_______________________________________________ >Annelida mailing list >Post: Annelida@net.bio.net >Help/archive: http://www.bio.net/biomail/listinfo/annelida >Resources: http://www.annelida.net PLEASE NOTE NEW E-MAIL ADDRESS / CHANGEMENT D'ADRESSE E-MAIL Pierre Chevaldonn? CNRS - UMR DIMAR, Station Marine d'Endoume Centre d'Oc?anologie de Marseille Rue de la Batterie des Lions 13007 Marseille, France Tel: 33 4 91 04 16 59 Fax: 33 4 91 04 16 35 E-mail: pierre.chevaldonne@univmed.fr Web page: http://www.com.univ-mrs.fr/DIMAR/admin/detailperso.php?nom=Pierre:CHEVALDONNE Dimar Web page: http://www.com.univ-mrs.fr/DIMAR/ -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.bio.net/bionet/mm/annelida/attachments/20090427/57084c4e/attachment.html From Dieter.Fiege from senckenberg.de Wed Apr 29 07:15:34 2009 From: Dieter.Fiege from senckenberg.de (Dieter Fiege) Date: Wed Apr 29 15:55:30 2009 Subject: [Annelida] Senckenberg collection of Polychaeta online Message-ID: <49F86106.FE54.00BA.0@senckenberg.de> Dear colleagues, with great pleasure I would like to inform you that collection data regarding Senckenbergs' collection of Polychaeta have been successfully transferred to the database SeSam (= Senckenberg Sammlungen). Access to data of our 13000 lots of Polychaeta is now available online through the web via http://sesam.senckenberg.de For guidelines on how to use the database I include some instructions below. I would like to encourage you to make use of this biological archive for your research, e.g. through loans, but also help develop it by the deposition of specimens, especially type specimens. Senckenberg has a long tradition in natural history research and the development and curation of scientific collections. Although the polychaete collection is still relatively young the number of specimens in it is growing constantly. The transfer of collection data would not have been possible without the help of Ruth Barnich and financial support by the Walter und Erika Datz-Stiftung. I gratefully acknowledge their support. Collections of other groups of worms but also echinoderms will follow - hopefully soon. I hope you will consider the database a useful tool. Metamerically, Dieter Dr. Dieter Fiege Curator for Marine Invertebrates (Polychaeta) Senckenberg Research Institute and Natural History Museum Senckenberganlage 25 D-60325 Frankfurt/Main Germany ph: +49-(0)69-7542 1265 Fax: +49-(0)69-746238 www.senckenberg.de ####################################################### How to use the database SESAM 1. enter the database via http://sesam.senckenberg.de/ 2. choose your preferred language 3. the next screen shows the collections currently available through SESAM. For a search check the menue bar on the left and click ?Search? 4. on the next screen please select the taxonomic group you are interested in by clicking on the respective name in the collections window (for example ?Polychaeta - SMF?). Thus your search will be restricted to the polychaete collection. For a quick search please fill in one of the windows fields, i. e. a catalogue number, a specific genus, species etc. Then press Return (For a more detailed search please click on ?extended search?) 5. the next screen, will show you the results of your search. If more than 20 lots match your query, these are presented in portions containing 20 lots each. They are numerically arranged by increasing catalogue number 6. if you click on the catalogue number you will enter the specific data set (sometimes you have to close/move the original search result to view the data set since it is displayed on a new screen). The screen shows the ?Summary sheet? for the specific data set but you can switch to e.g. ?Taxonomy and specimen data?, ?Locality data?, etc. just by clicking on the respective card. Cards are arranged like in a card folder. Example for a basic search: You are looking for the specimens of the polychaete genus Harmothoe housed in the Senckenberg. start with step 4, i.e. you have already entered the ?Search sheet? 5. fill in the ?genus window? with Harmothoe and press return 6. your result is 560 lots of Harmothoe represented in the database 7. click on catalogue number 712 and you receive the data for specimens of Harmothoe praeclara (HASWELL 1882) Example for an extended search: You want to know which species of the polychaete family Polynoidae are present in the collection start with step 4, i. e. you have already entered the ?Search sheet? 5. click on ?Extended search?, and you enter the extended search screen. 6. select your group, i.e. ?Polychaeta-SMF? 7. mark the box ?Taxonomy? 8. go to ?Field?, open the pulldown menue and click on ?Taxonomic position? 9. a screen called ?Biosystematic Search assistant? appears. Type the requested taxon into the blank box, in this case Polynoidae. Click ?Start search? 10. The search result is two-fold, 1. Polynoidae and Polynoidae indet, simply click on the Polynoidae, and the expression will be copied into your query form. (If you click on ?+? before the respective result you will see more information, in this case a list of the genera comprised incl. those represented in the collection) 11. click ?OK? to validate the search for this family 12. then click ?start search? and the species of Polynoidae represented in the collection appear 13. click on catalogue number 712 and you receive the data for specimens of Harmothoe praeclara (HASWELL 1882) 14. for a new extended search you must first clear the parameters in the line ?Searchvalues? by clicking on all ?l? on the right in these lines. Now you can select the parameters for a new search We hope, that after some exercise you will consider SeSam a practical tool. It offers a large amount of information on specimens, authors, literature, and biosystematics. Just keep on clicking?