>
>> Re:  why little D. lumholtzi has such long spines?
>
>        It would be my guess that it is to increase surface area and thus
>deter the rate that the body sinks in the water column...
>
>Cheers,
>        Justin M Krebs
>


I'll pitch in with Justin.

I recall reading a paper which pretty convincingly related daphnid spine
development to Reynolds number at varying water temperatures.

Unfortunately I don't have the reference available, but if you contact David
Culver at Ohio State University he may be able to help you (it was in his class
that I ran across the work).  His email is [log in to unmask]

Hope this helps, Bill


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