mystery medusa

mystery medusa

Postby r33fking » Tue Feb 22, 2011 1:40 pm

Image
Image
Image

i found a few of these in my broodstock systems .
i observed them stinging and killing some baby brine shrimp .
any idea what kind of larvae they are ?
i know alot of organisms have a medusa stage .
any input would help.
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Re: mystery medusa

Postby spawner » Tue Feb 22, 2011 2:46 pm

nice photos. I'll get you an ID.
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Re: mystery medusa

Postby spawner » Tue Feb 22, 2011 4:23 pm

Nice to have a specialist as a colleague, here is Dr. Sean Collin's website http://fox.rwu.edu/jellies/index.html He sees them as amazing research subjects. I see them as copepod eating pests..... The prey capture biomechianics are very enlightening for a fish culturists.

Cladonema (maybe californicum) http://jellieszone.com/cladonema.htm
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Re: mystery medusa

Postby r33fking » Tue Feb 22, 2011 6:38 pm

wow thank you spawner !!!
those pics were taken with my cell phone thru a scope that i found at a second hand store for $10.
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Re: mystery medusa

Postby r33fking » Tue Feb 22, 2011 6:45 pm

very interesting .. im not sure how these made their way into my system .
it seems they occur on the coast near me but i havnt added anything to my systems collected from temperate seas .
i do tide pool from time to time but havnt done any plankton collection for my trials at home .
as far fetched as it may be i wonder if they had hitch hiked on me personally >?
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Re: mystery medusa

Postby spawner » Tue Feb 22, 2011 10:20 pm

They get in our systems as well. I suspect that they are in a lot of people's system and they aren't noticed.
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Re: mystery medusa

Postby onsan » Tue Feb 22, 2011 11:38 pm

i get small "jellies" like this occasionally, I've put them down to the medusa stage of some hydroids that a plaguing my system.

Image
Image of Distinction - Dr. Patrick Hickey
LUX Biotechnology Ltd. - Edinburgh, UK
Specimen: Hydroid medusa (4x)
Technique: Transmitted light
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