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Statoblast

 
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Charles Krebs



Joined: 13 Jul 2004
Posts: 1200
Location: Issaquah, WA USA

PostPosted: Mon May 29, 2006 1:16 pm    Post subject: Statoblast Reply with quote

This is a Bryozoan statoblast. It is a cyst that can survive over the winter and begin a new Bryozoan colony when conditions permit. The little anchor shaped hooks really cling to things and allow the statoblast to hitch a ride on vegatation or animals.

This was the first one I've seen, and it was not in the greatest condition. Only two or three of the hooks were in decent shape, so I took a few darkfield shots concentrating on them.





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rjlittlefield



Joined: 06 May 2005
Posts: 727
Location: Richland, WA, USA

PostPosted: Mon May 29, 2006 2:40 pm    Post subject: Reply with quote

Charlie, your photos are beautiful, and as usual with beautiful photos, I scurried off to see what else I could find about these beasts.

Others may be interested in one or two of the links I found. http://ebiomedia.com/gall/micronat/bryozoan.html has excellent photos and description of a statoblast hatching and what happens after that. And http://www2u.biglobe.ne.jp/~gen-yu/pectinatella_e.html has a picture of several whole statoblasts, apparently under a dissecting scope.

Thanks for the continued stimulation! Very Happy

--Rik

PS. I'm still unclear about the structure of the hooks. Are they 3D, like mushrooms, and I'm looking at a cross-section? Or are they more planar, like coathooks?
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Charles Krebs



Joined: 13 Jul 2004
Posts: 1200
Location: Issaquah, WA USA

PostPosted: Mon May 29, 2006 3:59 pm    Post subject: Reply with quote

Hi Rik... more planar like coathooks.
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Ken Ramos
Site Admin


Joined: 04 May 2004
Posts: 4809
Location: Western North Carolina

PostPosted: Mon May 29, 2006 4:12 pm    Post subject: Reply with quote

Haven't been getting around over here much lately, sorry. What is that thing? Looks like a c.s. of a little mushroom. A statoblast! Surprised For sure I have a few stuck on me somewhere. Think Still can't get over the striking images you guys are producing over here. Excellent! Very Happy
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discomorphella



Joined: 06 Jan 2005
Posts: 63
Location: NW United States

PostPosted: Mon May 29, 2006 4:19 pm    Post subject: Reply with quote

Hi Charlie--

Beautiful and informative (as usual). Where'd you find the Byrozoans? I've searched for them but haven't found any colonies yet.

--David
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Charles Krebs



Joined: 13 Jul 2004
Posts: 1200
Location: Issaquah, WA USA

PostPosted: Mon May 29, 2006 4:52 pm    Post subject: Reply with quote

David... found this single specimen in a sample jar taken from Lake Sammamish here in Issaquah yesterday.
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