环境因子对黄姑鱼精子活力的影响

he effects of environmental factors on the sperm vitality of Nibea albiflora were investigated. The results indicated that the density of sperm was (1.41±0.12) ×1010 / ml; the suitable salinity for sperm activation and movement was 25~35 while pH value 7.5~8.5. The highest activation rate, the longest moving time and life-ban of sperm were（87.00±5.54）%,（336±14.02）s、（405.33±12.22）s, respectively when the sperm was activated in the solutions of salinity 25. And the suitable oncentration of KCl, NaCl, MgCl2, glucose solutions for sperm activation were 300~500mmol•L-1, 600mmol•L-1, 800~1000 mmol•L-1, 900 mmol•L-1. But the sperm had some conglomeration and moving time shorten quickly in the CaCl2 solutions. the sperm could not be activated by HCO3¯free artificial seawater. More than 80% of sperms were activated by Ca2+-free, Mg2+- free artificial seawater, but swam lasted short time.