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当前位置: 首页 > 文章 > 细鳞鲴繁殖生物学初步研究 水生态学杂志 2010,03 (1) 78-83
Position: Home > Articles > Preliminary Studies on Reproduction Biology of Xenocypris microlepis Journal of Hydroecology 2010,03 (1) 78-83

细鳞鲴繁殖生物学初步研究

作  者：
刘敏;熊邦喜;吕光俊
单  位：
华中农业大学水产学院
关键词：
细鳞鲴;繁殖生物学;道观河水库
摘  要：
报道了细鳞鲴(Xenocypris microlepis)繁殖生物学的初步调查研究结果。细鳞鲴雌雄个体在繁殖季节的显著区别是雄性个体有"珠星"。繁殖季节雄雌性比为1.55∶1,最小性成熟年龄为2龄,繁殖群体主要由2、3龄组成。细鳞鲴的绝对繁殖力F为8247～157899粒,平均78629.3粒。体重相对繁殖力FW为95～487粒,体长相对繁殖力FL为894～5110粒,平均相对繁殖力FW为(225.8±58.32)粒、FL为(2738.4±135.53)粒。其绝对繁殖力F随体长(L)、体重(W)、空壳重(W0)、性腺重(Wx)的增加而增加,对相对繁殖力FL和FW影响较大的分别是性腺重(Wx)和性成熟系数GSI。
译  名：
Preliminary Studies on Reproduction Biology of Xenocypris microlepis
作  者：
LIU Min,XIONG Bang-xi,LV Guang-jun(College of Fisheries,Huazhong Agricultural University,Wuhan 430070,China)
关键词：
Xenocypris microlepis;Reproductive biology;Daoguanhe Reservoir
摘  要：
The investigation and study on reproductive biology of Xenocypris microlepis in Daoguanhe Reservoir was introduced. The obvious feature was the appearance of spotted pearl organs for males during reproduction periods. Male to female ratio was about 1.55 to 1 at reproduction season. Spawning stocks involved four age groups,and 2 to 3 ages of Xenocypris microlepis was the major components,accounting 84.97% of the total. The minimum mature age was 2 both for males and females. The absolute fecundity (F)ranged from 8 247 to 157 899 eggs with an average of 78 629.3 eggs. The relative fecundity to weight (FW) ranged from 95 to 487 eggs with an average of 225.8 eggs,and that to length (FL) ranged from 894 to 5 110 eggs with an average of 2 738.4 eggs. The results of correlation analysis indicated that absolute fecundity of Xenocypris microlepis increased with body length (L),body weight (W),net weight (W0),gonad weight (Wx) increasing,while the relative fecundity to weight and length were greatly impacted by gonad weight (Wx) and gonad sexual index (GSI),respectively.

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