Which is the major trigger in aquatic environment for pearl oyster Pinctada fucata martensii sperm from gonad: Ammonia ion or pH?
文献类型： 外文期刊
作者： Zheng, Xing 1 ; Fu, Zhenyi 1 ; Lin, Siqi 1 ; Yang, Rui 3 ; Wang, Aimin 1 ; Gu, Zhifeng 1 ; Ma, Zhenhua 3 ;
作者机构： 1.Hainan Univ, State Key Lab Marine Resource Utilisat South Chin, 58 Renmin Ave, Haikou 570228, Hainan, Peoples R China
2.Hainan Univ, Coll Marine Sci, Dept Aquaculture, Haikou 570228, Hainan, Peoples R China
3.Chinese Acad Fishery Sci, Trop Aquaculture Res & Dev Ctr, South China Sea Fisheries Res Inst, Sanya 572018, Peoples R China
关键词： Pearl oyster Pinctada fucata martensii; Sperm; Motility; Swimming movement characteristics; Ammonium ion; pH; Salinity
期刊名称：AQUACULTURE （ 影响因子：4.242； 五年影响因子：4.723 ）
ISSN： 0044-8486
年卷期： 2020 年 520 卷
页码：
收录情况： SCI
摘要： To understand the roles of ammonia ion, pH, and salinity triggering sperm motility, effect of various ammonia ion concentrations (0, 1, 2, 3, 5, 10, 20 mM), external pH (pH(e), 7.00, 8.20, 9.00, 9.50) and salinity (20, 25, 31, 35, 40 ps mu) on total motile sperm (TM) and swimming movement characteristics (curvilinear velocity - VCL, straight-line velocity - VSL, average path velocity - VAP, beat-cross frequency -BCF) were investigated for Chinese pearl oyster Pinctada fucata martensii, under laboratory condition. The TM and swimming movement characteristics were analyzed by a computer assisted sperm analysis system, based on sperm parameters of invertebrate. Ammonium ion as the major factor in triggering sperm motility, rather than pH. was proved. Sperm motility was less affected by differing salinity solution without ammonium ion. Seawater containing 2 mM or 3 mM ammonium ion were suggested to be used for motility trigged and movement evolution for P. fucata martensii. The results in the present study are instructive for artificial external fertilization, gamete stocks and management in P. fucata martensii.
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