TY - JOUR A2 - Cucco，AU - Tiogué，克劳迪Tekounegning AU - Zebaze，Boddis Tsiguia AU - Zango的，保罗AU - Tomedi，塌鼻，米内特Eyango PY - 2020 DA - 2020年2月15日TI - 繁殖策略Chrysichthys nigrodigitatus（Lacepede，1803），在自然环境中Nkam河，滨海喀麦隆SP - 1378086 VL - 2020 AB - 对生殖策略研究 Chrysichthys nigrodigitatus从2015年10月至2016年8月进行，在Nkam河Yabassi，喀麦隆滨海地区。为此，154标本 C. nigrodigitatuswith total mean weight of 829.96 ± 829.58 g and total mean length of 367 ± 156 mm collected from artisanal fishermen were used. Twenty-nine (29) females at stage V of sexual maturity were selected for the evaluation of the fecundity. It appears that the oogenesis in C. nigrodigitatus是异步类型与多个传播铺设在长时间内的。The gonadosomatic index (GSI) peaks in June (17.9 ± 7.1 for females and 1.06 ± 0.27 for males). Hepatosomatic index (HSI) was higher in females than in males throughout the year. The mean condition factor K was 1.07 ± 0.09%. The breeding season occurred from April to October during the rainy season. Gonadosomatic and hepatosomatic indices were positively correlated with rainfall, contrary to the K factor, which has been strongly and negatively correlated with this physical parameter. The sex ratio of 1M: 1.5F was in favour of females, thus reflecting an “ [R”键入生殖策略。Absolute fecundity was estimated at 1374 ± 1022 oocytes for individuals of 107.3 ± 111.9 g mean weight. Mean relative fecundity was 14 ± 3 oocytes/g of body weight. It was recommended that future work focuses on the captivity of this species. SN - 1687-8477 UR - https://doi.org/10.1155/2020/1378086 DO - 10.1155/2020/1378086 JF - International Journal of Zoology PB - Hindawi KW - ER -