摘要
1、中国对虾生活在盐度为4．5－35．5％海水（渗透浓度为114－1178mOsm／kg）中，其血淋巴渗透浓度变化范围为587－797mOsm／kg。当海水渗透浓度为602mOsm／kg时，其血淋巴与海水等渗；当海水渗透浓度低于602mOsm／kg时，中国对虾表现为强高渗调节，高于602mOsm／kg时为中等低渗调节。2、中国对虾血淋巴中Na＋离子在低盐度时为高高于调节，高盐度时为低离子调节。在试验盐度范围内，K＋和Ca2＋均为高高于调节，Mg2＋为低高于调节。3、中国对虾对盐度突变有较强的适应能力。从盐度15‰海水转移到盐度70‰和28‰海水中，转移后分别在6和24小时中国对虾血淋巴渗透浓度基本能达到稳定。
The changes of hemolymph osmolarity of Penaeus orientalis are from 587 to 797 mOsm/L at salinities between 4. 5 - 35. 5‰ (114 - 1178 mOsm/L). The hemolymph osmolarity is isosmotic to seawater at 602 mOsm/L and shows a strong hyperosmotic regulation to the medium below isosmotic concentration and a moderate hypoosmotic regulation to those above.Hemolymph Na+ concentration is hyperregulated at low salinities and hyporegulated at high salinities. Hemolymph K+ and Ca2+ concentrations are hyperregulated, and hemolymph Mg2+ concentration is hyporegulated at all experimental salinities.P. orientalis has a strong ability to regulate hemolymph osmolarity after the abrupt salinity change. The hemolymph osmolarity become stable within 6 and 24 hr when the prawns abruptly transfer from initial seawater (15‰ salinity) to experimental seawaters (7‰ and 28 ‰ salinity).
出处
《上海水产大学学报》
CSCD
1995年第2期122-127,共6页
Journal of Shanghai Fisheries University
