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不同水温对红螫螫虾胚胎发育的影响
Effects of Different Gradient Temperatures on Embryonic Development of the Cherax Quadricarinatus (Crustacea, Decapoda)
【摘要】 本文研讨了各种人控恒温和自然水温对红整整虾胚胎发育周期,各发育阶段以及胚胎发育成活率等的影响在水温24-30℃,红螫螫虾的胚胎均能正常发育;最适发育水温为28-30℃.22℃以下或32℃以上,胚胎不能正常发育,自然水温温差大,对胚胎发育有害水温越高,胚胎发育越快,发育周期越短,成活率越低
【Abstract】 The effects on embryonic development of the cherax quadricarinatus at water temperature which included seven sets of 22℃, 24℃, 26℃, 28℃, 30℃, 32℃ and ambient temperature were studied by light microscope from 1997 to December, 1998. The results showed briefly in the following: The water temperature ranges from 24℃ to 30℃ were suitable for embryonic development of the shrimp, beyond this water temperature ranges, it would be dangerous or lethal to the shrimp; This optimum water temperature for embryonic development of the shrimp was 28℃ to 30℃; The development of the embryo was quite sensitive to water temperature, the higher water temperature was, the less time embryonic development spent, but embryonic survival rate was gradually decreased.
- 【文献出处】 湖泊科学 ,JOURNAL OF LAKE SCIENCE , 编辑部邮箱 ,2000年01期
- 【分类号】Q959.225
- 【被引频次】44
- 【下载频次】243