Ostrea gigas

George Brown Can anyone help with the ID of this worm please? A group of about forty individual heads poking out a heavy, discarded fishing net, lying on the seabed. The height of each individual varied from 15 to 40mm. Loch Goil, depth 25metres.

David Kipling Andrew Mackie may know?

Andrew Mackie Nice picture. Don't know offhand what it is. Guess no specimens were collected?

George Brown Sorry no, Andrew. If I was to collect a sample what do I put it in and where could I send it? Many thanks.

Erling Svensen Glenmorangie - stored in some uears on sherry-barrels is perfect for storing George ;-)

George Brown Thank you Erling, I'll see if I have any spare. Right now.

Andrew Mackie For morphology, formalin would be best - but, I guess you may not have that?

Ian Smith Don't know if still available as now known to have dangerous fumes, but as a child I used to get formalin without trouble from local chemist for preservation of specimens.

Peter H van Bragt Hi George, it looks very much the same as Demonax cf brachyona. This little tube worm was found only once in Dutch coastal waters in 2006 on Crassostrea gigas. I'll post a in vivo photograph.

George Brown Thank you Peter. A very interesting species.

Myung-Hwa Shin I wanna this !!! I need some specimens of A. tarasovi, to get DNA sequences. I heard from one of colleague in Russia, this species is common in Russian water. If someone has any idea, please tell me How I can get the specimens.

Natalia L. Demchenko Budnikova L.L., Bezrukov R.G. Amphipods (Amphipoda, Gammaridea) of the Peter the Great Bay (Sea of Japan): taxonomical composition, abundance and zonal-geographical characteristics // Scientific Readings dedicated to Academician Oleg G. Kussakin. Vladivostok: Dalnauka, 2008. P. 6-49. (In Russian)

Natalia L. Demchenko it is the reference where there is a note about A. tarasovi. The species inhabits at depths 0-9 m in the Peter the Great Bay according to literature.

Myung-Hwa Shin Thanks Natalia Do you know e-mail of the authors of the paper? I cann't find the paper...

Natalia L. Demchenko I didn't find this species, but there is in catalog in the Museum of our Institute. Collections were preserved in formalin. So, for genetics it is needed fixation in alcohol only

Myung-Hwa Shin yes... to gen any DNA from specimens, we need fresh materials preserved in alcohol.

Myung-Hwa Shin I tried to get DNA from old specimens preserved in formalin.... but I couldn't get any one...

Natalia L. Demchenko I will search more about distribution of this species

Myung-Hwa Shin I hope.... I will get good news from you

Natalia L. Demchenko did you find this species in South Korea?

Myung-Hwa Shin not yet... I think identification of the species is not easy...

Natalia L. Demchenko I agree that identification of Ampithoe species is difficult

Myung-Hwa Shin I reported A. tarasovi from Korea in 2010, but I found Korean specimen and Russian specimen had different morphological features... little...

Natalia L. Demchenko According to work of N.L. Tzvetkova and V.A. Kudrjashov "On the fauna and ecology of gammarids (Amphipoda, Gammaridea) and biocoenoses of the upper parts of the shelf of the south Sakhalin", A. tarasovi was found in kelps of Sargassum miyabei, Ulva fenestrata, Phyllospadix iwatensis, Zostera marina, Zostera asiatica and so on...Also on settelments of mollusks Crassostrea gigas

Natalia L. Demchenko where did you found species cf.A. tarasovi in south Korea?

Myung-Hwa Shin East-southern part of Korea, and Southern part

Natalia L. Demchenko on which substrates or biotopes?

Myung-Hwa Shin I collected among algae as Ulva

Natalia L. Demchenko so, not only Bulycheva registered and described this species. I am sure that there are another findings of A. tarasovi. I just found 2 references...

Myung-Hwa Shin I had two references of Bulycheva, 1952 and Tzvetkova, 1967.

Andy Horton Pacific Oysters

Andrew Syvret They should have come here +15 years ago, we could have saved theim a lot of work ~ they're everywhere!

Darryl Mayer So much for the original thought that they'd be safe to grow here in farms coz they thought they wouldn't be able to spawn in our colder waters...

Andrew Syvret They promised us that here (Jersey) too. But now we've a wee problem on our hands ~ natives (O. edulis) previously conveniently "extinct" are now returning in good numbers, even being successfully reared by one enterprising fellow. Meaning what exactly for our disease (Bonamia) free export status?

Nicolas Jouault I usually have a good feed of wild Pacific oysters once a year at Les Ecrehous, which is some 7 miles from farmed beds, they are everywhere, as are other farmed species and their associates. Even thought to be the introduction of wire weed.

Andy Horton Crassostrea gigas http://jhered.oxfordjournals.org/content/early/2012/08/30/jhered.ess042.short?rss=1 I have seen them in the fishmongers and we used to call them Portuguese Oysters for some reason. Native Oysters have been returning intertidally at Shoreham, Sussex but only less than one in a billion compared to historic times (probably much less) and any offshore fishery is very small. I have not seen the new aliens wild on the shore.

Julia Nunn Interesting paper â€" shame its not possible to read it unless you subscribe

Thorleif Sørvik Andy ,do you no about this shell if it is : crassostrea gigas