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Weird Bivalve arthropods

This is a discussion on Weird Bivalve arthropods within the Light microscopes forums, part of the Image Galleries category; The point-and-shoot photo at 40x shows some strange arthropods lifted from the sides of our garden fish pond. ...


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  #1 (permalink)  
Old 10-28-2009, 10:51 PM
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Default Weird Bivalve arthropods

The point-and-shoot photo at 40x shows some strange arthropods lifted from the sides of our garden fish pond. The animal is incased in what looks like a shell, similar to that of a mussel or a clam. They move about fairly briskly. Any idea what these can be? They are a bit reminiscent of a flea, and only slightly smaller. And of course, wetter.
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Old 10-29-2009, 07:43 AM
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OK, after a brief search, I think they are called Daphnia.
Daphnia - Wikipedia, the free encyclopedia
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Old 11-12-2009, 12:03 PM
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They look a bit weird for daphnia. I'm new to this foroum, but keep tropical fish, and daphnia are sold as live food for them in fish shops.

The don't have whatever the external apendages are called, so it makes me think we're seeing them mostly developed, but still in eggs.

Fish love 'em.
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Old 11-15-2009, 05:54 AM
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I think they are ostracods.
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Old 11-15-2009, 08:15 AM
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Quote:
Originally Posted by karlssoni View Post
I think they are ostracods.
I think that is closer to the truth! The article at Ostracod - Wikipedia, the free encyclopedia does indeed make mention of the bivalves.

Thanks philaw and karlssoni

Mintaka
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Old 06-17-2010, 11:19 PM
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Hi Mintaka,

These apear to be cypris, which is a form of ostracod.

Regards,

Peter.
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Old 08-27-2010, 10:05 AM
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Also called "bean shrimps" or "seed shrimps"
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Old 09-14-2010, 06:50 PM
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