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Subject: Re: Unknown crustacean larvae - Identification help needed probably an ascidian
From: Jim Stark <[log in to unmask]>
Reply-To:Scientific forum on fish and fisheries <[log in to unmask]>
Date:Mon, 15 Mar 2010 10:21:07 -0700
Content-Type:text/plain
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It looks like a compound Ascidian (tunicate). Their Phylum is 
Urochordata, Class Ascidiacea. Families 
ClavelinidaePhylum-Urochordata---Class—Ascidiacea
Families: Clavelinidae---Polyclinidae---Didemnidae


It could be Amaroucium soldatovi
They come in all sorts of shapes and sizes.
Or it could be Distaplia occidentalis Globular Ascidian
Description: Relatively large, hemispherical or spherical tunicate 
colonies; individual zooids visible through surface as large
dark or light specks; color uniform, variable gray, red, or orange.
Distribution: Bering Sea to California. Depth: 1-50 m
Or it could be some other Ascidian.
We identify all animals we find during our annual bottom trawl surveys 
of Alaska, and formerly the west coast.
We are located in Seattle. If you wanted to you could bring a sample to 
our lab or send it to us for positive identification.
Jim Stark
Research Fishery Biologist
National Oceanic and Atmospheric Administration
NOAA Fisheries
Alaska Fisheries Science Center
Resource Assessment and Conservation Engineering Division
Seattle, WA

Rom Lipcius wrote:
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>            REPLIES WILL BE SENT TO THE FISH-SCI LIST
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> I'm sending this to my crustacean colleagues and will respond. How interesting!
>
> ______________________________________________________
>
> Romuald N. Lipcius
> 2009 Kavli Fellow, National Academy of Sciences
> Professor of Marine Science
>
> Virginia Institute of Marine Science, The College of William & Mary
> 1208 Greate Road, Gloucester Point, VA 23062
> 804-684-7330 (office), [log in to unmask]
> http://www.vims.edu/fish/faculty/lipcius_rn.html
>
> On Mar 13, 2010, at 2:06 PM, Lee Cain wrote:
>
>   
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>>           REPLIES WILL BE SENT TO THE FISH-SCI LIST
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>> A colleague of mine recently sent me some pictures of strange egg clusters, which appear to be marine crustacean larvae.  These were found on exposed sandy beach along the coastline just south of the Columbia River mouth, Oregon, USA.
>>  
>> Images and descriptive text can be seen at http://nwonline.nwresd.org/astoriahs/mod/resource/view.php?id=3152
>>  
>> thanks for your input
>> Lee Cain
>>
>>
>>
>>
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