Qin Liang, Xiong Bang-Xi, Lü Guang-Jun
College of Fisheries, Huazhong Agricultural University, Wuhan, China.
Ying Yong Sheng Tai Xue Bao. 2009 Aug;20(8):1952-7.
In April - June 2008, the matured female Culter alburnus specimens were collected from the Xujiahe Reservoir of China. Their ages were identified by the scales, and their body length, body mass, gonad mass, and other morphological indices were measured. Counted with gravimetric method, the individual absolute fecundity was obtained, and used for calculating the relative fecundity per centimetre, relative fecundity per gram, maturity, relative fatness, and other indices. Based on these measurements and calculations, the relationships between the individual fecundity and the morphological indices of C. alburnus in the Reservoir were studied. The ages of the specimens ranged from 2+ to 5+ years old, and the individual absolute fecundity and relative fecundity per centimetre were exponentially correlated with body length and body mass, and linearly correlated with age. No significant correlations were observed between the relative fecundity per gram and these morphological indices. Multi-regressive analyses showed that the individual absolute fecundity was significantly correlated with body mass and gonad mass, the relative fecundity per centimetre was significantly correlated with gonad mass, relative fatness and maturity, while the relative fecundity per gram was only correlated with maturity.
2008年4月至6月，从中国徐家河水库采集成熟雌性翘嘴鲌标本。通过鳞片鉴定其年龄，并测量其体长、体重、性腺重量及其他形态学指标。采用重量法计数，得出个体绝对繁殖力，并用于计算每厘米相对繁殖力、每克相对繁殖力、成熟度、相对丰满度及其他指标。基于这些测量和计算，研究了水库中翘嘴鲌个体繁殖力与形态学指标之间的关系。标本年龄范围为2+至5+岁，个体绝对繁殖力和每厘米相对繁殖力与体长和体重呈指数相关，与年龄呈线性相关。每克相对繁殖力与这些形态学指标之间未观察到显著相关性。多元回归分析表明，个体绝对繁殖力与体重和性腺重量显著相关，每厘米相对繁殖力与性腺重量、相对丰满度和成熟度显著相关，而每克相对繁殖力仅与成熟度相关。
