海水钙浓度对远海梭子蟹软壳持续时间与形态变化的影响  

The Effects of the Calcium Concentration in Seawater on the Exoskeletal Calcification of the Portunus pelagicus

作　　者：岳立芳[1] 廖永岩[1] 刘家良[1] 何碧华 谢叶[1] 张贵[1] 

机构地区：[1]广东海洋大学水产学院,广东湛江524025

出　　处：《广东海洋大学学报》2011年第3期90-95,共6页Journal of Guangdong Ocean University

基　　金：广东省教育厅重点学科建设项目基金资助(0709162)

摘　　要：盐度30、pH7.5～8.5、温度27～30℃条件下,将刚刚蜕壳的远海梭子蟹放入不同钙浓度梯度(0～400 mg/L)的人工海水中,进行钙浓度对远海梭子蟹蟹壳硬化影响的实验。结果表明:0～12.5 mg/L浓度组的软壳持续时间在10.4～11.4 h之间,25～200 mg/L浓度组的软壳持续时间在6.1～7.7 h,400 mg/L浓度组的软壳持续时间为4.4 h;不同浓度组下,壳宽的增加差异不显著(P﹥0.05),壳长的增加差异也不显著(P﹥0.05);50 mg/L浓度组与400 mg/L浓度组体重增加差异显著(P<0.05),其它各浓度组之间体重增加差异不显著(P﹥0.05)。Under the conditions of salinity of 30,pH7.5–8.5 and temperature of 27–30℃,in order to test the effects of the Calcium concentration in seawater on the calcificatio of the Portunus pelagicus,they were put into the artifical seawater with different Calcium concentrations（0–400 mg/L）.The results are as following： the soft-shell lasting time were 10.4–11.4h,6.1–7.7h,4.4h on the calium concentration of 0–12.5mg/L,25–200mg/L,400mg/L respectively;The increase of CW have no significant difference（P﹥0.05） in different calcium concentration,the CL also has no significant difference（P﹥0.05）;The increase of mass of crab has significant difference between the calium concentration of 50 mg/L and 400 mg/L,but the other groups have no significant difference（P﹥0.05）.

关 键 词：远海梭子蟹 软壳蟹 钙浓度 钙化 

分 类 号：S968.25[农业科学—水产养殖]