[Annelida] Swima the swimmer

Struck, Torsten via annelida%40net.bio.net (by Torsten.Struck from Biologie.Uni-Osnabrueck.DE)
Sat Aug 22 16:02:50 EST 2009


Indeed, it is a nice discovery and very interesting. Moreover, the
phylogenetic hypotheses are very solid (not at all "dubios at best") and
good in comparison to several other analyses out there.

Nice work Karen,

Torsten.


On 8/22/09 10:30 AM, "Kirk Fitzhugh" <kfitzhug from nhm.org> wrote:

> Nice discoveries indeed. It's unfortunate that the scientific merits of the
> phylogenetic hypotheses are dubious at best. But then, it *is* published in
> Science. ;-)
> 
> Kirk
> 
> 
> 
> -----Original Message-----
> From: annelida-bounces from oat.bio.indiana.edu on behalf of Geoff Read
> Sent: Sat 8/22/2009 12:54 AM
> To: <Annelida list
> Subject: [Annelida] Swima the swimmer
> 
> FYI
> 
> Osborn KJ, Haddock SHD, Pleijel F, Madin LP, Rouse GW 2009. Deep-Sea, Swimming
> Worms with Luminescent "Bombs". Science 325: 964 (and online 'supplement').
> 
> http://www.sciencemag.org/cgi/citmgr?gca=sci;325/5943/964
> 
> Swima bombiviridis named (new genus, new species of acrocirrid)
> 
> Abstract: "By using remotely operated vehicles, we found seven previously
> unknown species of swimming annelid worms below 1800 meters. Specimens were
> large and bore a variety of elaborate head appendages. In addition, five
> species have pairs of ellipsoidal organs homologous to branchiae that produce
> brilliant green bioluminescence when autotomized. Five genes were used to
> determine the evolutionary relationships of these worms within
> Cirratuliformia. These species form a clade within Acrocirridae and were not
> closely related to either of the two known pelagic cirratuliforms. Thus, this
> clade represents a third invasion of the pelagic realm from Cirratuliformia.
> This finding emphasizes the wealth of discoveries to be made in pelagic and
> deep demersal habitats."
> 
> 
> Nice discovery. I want to know what they feed on, and how.
> 
> Geoff
> 
> 
> --
> 
>  Geoff Read <g.read from niwa.co.nz>
>   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.
> 
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------ CONTACT INFORMATION ------
PD Dr. habil. Torsten H. Struck
University of Osnabrück
Department of Biology/Chemistry
Zoology
Barbarastrasse 11
D-49069 Osnabrück
Germany

Phone: +49-541-9693450
Fax: +49-541-9692587
e-mail: struck from biologie.uni-osnabrueck.de







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