[Annelida] request- infestation of Loligo eggs by polychaetes

QIAN Peiyuan via annelida%40net.bio.net (by boqianpy from ust.hk)
Fri Sep 24 21:54:53 EST 2010

Dear Paulo,

When I was studying reproductive ecology of Capitella sp., I found that
capitella in Loligo egg capsules deposited in shallow water of inlet in
Vancouver Island of British Columbia (where I collected capitella from
intertidal and subtidal areas for regular experiments).  I found that the
capitella living on capsules grew very fast, and become very large
individuals and produced many small eggs.  I ended up running indoor
experiments by introducing juvenile capitella into egg capsules and found
some interesting results.  The works were published in papers, which I do
not have reprints in hand any more.  You may be able to find some
information from one or two of these publications.

Regards. Pei-Yuan

Qian PY.  1994.  Effects of food quantity on growth and reproductive
characteristics of Capitella sp. (Annelida: Polychaeta).  Invert. Reprod.
Devel., 26, 175-185.

Qian PY, Chia FS.  1992.  Effects of diet type on the demographics of
Capitella sp. (Annelida: Polychaeta): lecithotrophic development versus
planktotrophic development. J. Exp. Mar. Biol. Ecol., 157, 159-179.

Qian PY, 1991.  Impact of environmental factors on life history strategies
of the marine polychaete Capitella sp., Ph.D. Thesis,  University of
Alberta, Edmonton, 271pp.

Qian PY, Chia FS.  1991.  Fecundity and egg size of Capitella sp.  were
mediated by diet.  J. Exp. Mar. Biol. Ecol., 148, 11-25.

> Dear colleagues,
> A friend of mine, Dr Erica Vidal, who is an specialist on cephalopod
> cultivation,  is  interested in studying  the infestation ofLoligo  egg
> capsules
> by capitellids and nereidids. If you have the time and patience, could
> you please have a look at the attached pictures?
> Do you know anything about this kind of infestation? Could you provide
> any information about it? Are you aware of any published (or unpublished)
> records on this subject?
> Regards,
> Paulo Lana
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Dr. Pei-Yuan Qian
Section of Marine Ecology and Biotechnology
Division of LIfe Science
Hong Kong University of Science and Technology
Clear Water Bay
Hong Kong
Tel: 0852-2358-7331
Fax: 0852-2358-1559
E-mail: boqianpy from ust.hk

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