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In the Redclaw Crayfish, Cherax quadricarinatus, males grow larger and faster than females, and interest has focused on monosex breeding techniques for the production of males only. The adult male and female sexual characteristics of Cherax quadricarinatus are easily distinguished but cannot be determined in the embryo and juvenile stages. Because there is no DNA marker for the identification of sex...
Total dissolved gas (TDG) supersaturation generated in the river may result in gas bubble disease to Chinese sucker (Myxocyprinus asiaticus Bleeker) and cause their mortality. To assess the effects of TDG supersaturation on Chinese suckers in laboratory, juvenile fish were exposed to different levels of TDG supersaturated water. All of the fish died when the TDG saturation reached and exceeded 125%,...
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