[Killietalk] RE: Killietalk Digest, Vol 20, Issue 12

["Koran, David HQ02" <David_Koran at hq02.usace.army.mil>]

From: Wright Huntley <whuntley at verizon_net>
Subject: Re: [Killietalk] Feeding Brine Shrimp
To: killifish discussion list <killietalk at aka_org>


"Joseph S." <nonamethefish at gmail_com> asked:

> Just curious but do the Brine shrimp kept in this manner ever produce
> resting eggs?

At lower salinity, Artemia are usually live bearing. As spring rain ends 
water evaporates and then cools in the fall, they switch to egg laying. 
I'm not sure if I have cited the exact conditions that trigger the 
difference, but it is an environmental response, generally.

Wright,

The transition point for GSL shrimp is about 55oF.  Above that you get live
birth, below, resting eggs.  You start seeing shrimp in the early summer when
the lake temperature goes above the mid-fifties.


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