CAJ | 학술논문

利用2012年2月至2013年1月在钱塘江桐庐段水域的渔获物中采集的样本，对该水域花鱼骨（ Hemibarbus maculatus Bleeker）种群的叉长和体质量组成，性别组成和性比、年龄组成等渔业种群结构特征进行了初步研究。结果表明，渔获群体的叉长范围为11.2～33.1 cm，平均叉长为（20.2±3.45）cm；体质量范围为26.0～540.8 g，平均体质量为（171.6±81.9）g。雌性个体大于雄性个体，雌性渔获群体的平均叉长为（23.5±3.58）cm，平均体质量为（183.2±79.87）g；雄性渔获群体的平均叉长为（22.7±3.77）cm，平均体质量为（168.8±78.99）g。雌性群体数量多于雄性群体数量，雌、雄性比约为1.47∶1。渔获群体由4个年龄组组成，以2龄为主。
이용2012년2월지2013년1월재전당강동려단수역적어획물중채집적양본，대해수역화어골（ Hemibarbus maculatus Bleeker）충군적차장화체질량조성，성별조성화성비、년령조성등어업충군결구특정진행료초보연구。결과표명，어획군체적차장범위위11.2～33.1 cm，평균차장위（20.2±3.45）cm；체질량범위위26.0～540.8 g，평균체질량위（171.6±81.9）g。자성개체대우웅성개체，자성어획군체적평균차장위（23.5±3.58）cm，평균체질량위（183.2±79.87）g；웅성어획군체적평균차장위（22.7±3.77）cm，평균체질량위（168.8±78.99）g。자성군체수량다우웅성군체수량，자、웅성비약위1.47∶1。어획군체유4개년령조조성，이2령위주。
Hemibarbus maculatus, as a kind of important economic freshwater fish , is widely distributed all over the river systems ex-cept for Xinjiang , Tibet.Characteristics of fish stock structure of Hemibarbus maculatus such as fork length composition , body weight composition, sex ratio of population, age construction, and so on, were primarily studied according to the data collected from commer-cial catch in Tonglu water of Qiantang River from February 2012 to January 2013 .The result showed that the fork length construction of H.maculatus was from 11.2 cm to 33.1 cm with the average of (20.2 ±3.45) cm.The body weight construction of H.maculatus was from 26.0 g to 540.8 g with the average of (183.2 ±79.87 ) g.The female of H.maculatus was bigger than the male in size .The fork length average and the body weight average of the female of H.maculatus was (23.5 ±3.58 ) cm and (183.2 ±79.87 ) g, respective-ly, while (22.7 ±3.77) cm and (168.8 ±78.99) g, respectively, of the male.There is an imbalance in the population amount be-tween the female and male .The sex ratio of population is 1.47∶1.The population of H.maculatus is composed of four age groups and most of them are belonged to two age old .