eggy Posted January 30, 2009 Report Share Posted January 30, 2009 brine shrimp: do thay really need airation? fairy shrimp: is it true that only unfertilized eggs produce males? Link to comment Share on other sites More sharing options...
Callatya Posted January 30, 2009 Report Share Posted January 30, 2009 No, but you seem to get a higher hatch rate if you are moving the eggs around. Do not know, but it does sound familiar. Link to comment Share on other sites More sharing options...
Chuckie Posted January 30, 2009 Report Share Posted January 30, 2009 if they are unfertilised, how can they produce anything - male or otherwise? Link to comment Share on other sites More sharing options...
kingers Posted March 1, 2009 Report Share Posted March 1, 2009 this post is a bit old, but some arthropods etc can reproduce asexually or sexually, unfertilized eggs are clones of the mother. Don't know if it applies to fairy shrimp though. They'd be female though, not male. Link to comment Share on other sites More sharing options...
splendidbetta Posted March 2, 2009 Report Share Posted March 2, 2009 Honeybees produce drones (males) from unfertilised eggs. They therefore are haploid (only have 1 copy of each gene, instead of 2, diploid). Diploid parthenogenesis is also possible. Brine shrimp can be parthenogenic: http://wildlife.utah.gov/gsl/brineshrimp/parthenogenesis.php Fairy shrimp info: http://en.wikipedia.org/wiki/Fairy_shrimp Brine and fairy shrimp are closely related, so it's possible that they could be parthenogic, but I could not find any information about fairy shrimp specifically. Link to comment Share on other sites More sharing options...
Lyarlla Posted March 2, 2009 Report Share Posted March 2, 2009 I had a better hatch rate with brine shrimp when I didnt airate the water. Other people have had a smiliar experience. If you chose to airate, make sure its really slow and only does a few bubbles at a time. Link to comment Share on other sites More sharing options...
Chuckie Posted March 2, 2009 Report Share Posted March 2, 2009 I have had the best hatch rates when the water is vigorously aerated. :lol: Link to comment Share on other sites More sharing options...
evil2 Posted March 2, 2009 Report Share Posted March 2, 2009 With regards to the brine shrimp ... Callatya says "No, but you seem to get a higher hatch rate if you are moving the eggs around.", Lyarlla says "I had a better hatch rate with brine shrimp when I didnt airate the water... If you chose to airate, make sure its really slow and only does a few bubbles at a time." and Lilli says "I have had the best hatch rates when the water is vigorously aerated." Hmmm... seems like it's a case of whatever works for you. I've just recently had my first lot of babies so when it came to hatching bs, I just followed the instructions that came with the eggs - well aerated. I've had a greater than 80% hatch rate everytime, so I'll probably just stick to that (just a classic case of "if it ain't broke, don't fix it"). ... although I now feel an experiment coming on. Link to comment Share on other sites More sharing options...
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