Re: [Killietalk] Feeding Brine Shrimp

[Wright Huntley <whuntley at verizon_net>]

"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.

San Francisco Artemia have a very different temperature and salinity 
cycle than the Great Salt Lake, but I think most cysts are produced in 
fall, there, too, as I recall. The differences make the egg size very 
different, though birds assure that both places have exactly the same 
species resident.

Robert Nhan mentioned the ponds drying up. That is the start of a 
program that will end up destroying much of the Artemia ponds of the S. 
San Francisco Bay area. SF airport wanted to fill an edge of the bay to 
add more runway space. Political pressure was brought by the Green Bigot 
Brigade, so a compromise was reached that will damage more species than 
it will help, probably. The airport has bought out the leases of the 
brine shrimp producers and intends to return most of the salt ponds (not 
all) to marshland. The resultant runway would likely have less impact on 
the environment of the bay than this drastic action will, but when has 
the Sierra Club ever taken political action that didn't have unintended 
consequences?

Hoping for the best,

Wright

--
Wright Huntley - Rt. 001 Box K36, Bishop CA 93514 - whuntley at verizon_net
                      760 872-3995

"If you ask me, I know of only one class of workers who are overpaid and 
underworked -- college professors."
                   ---  Walter Williams

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