中国水产科学2017，Vol.24Issue(5)：939-945,7.DOI:10.3724/SP.J.1118.2017.17083
黄河口及其邻近水域矛尾虾虎鱼渔业生物学特征
The fishery biological characteristics of Chaeturichthys stigmatias in the Yellow River estuary and its adjacent waters
摘要
Abstract
Traditional fishery resources have declined in abundance or even been depleted in recent years as a result of multiple stress factors,including coastal development,marine environmental pollution,and high fishing pressure in the Yellow River estuary and its adjacent waters.Chaeturichthys stigmatias has increased remarkably in abundance and been a dominant species in the Yellow River estuary and its adjacent waters,owing to its high adaptability,short life history,and high fecundity,as well as the decline in abundance of predators in these same waters.In order to ascertain the fishery and biological characteristics of Chaeturichthys stigmatias to generate the basic parameters for its further stock assessment and management,the size composition,length-weight relationship,and sexual maturity of the species were examined based on the fishery and biological data collected in bottom trawl surveys conducted between June 2013 and May 2014 in the Yellow River estuary.The results showed that the standard length of the fish ranged between 25 and 154 mm,with a mean length of (87.77±24.181) mm.The dominant standard length class was 60-120 mm,accounting for 76.71％ of the total abundance.The dominant class of body mass was 0.08-37.83 g,and the mean body mass was (9.1±6.905) g.The body mass class of 0-10 g dominated,occupying 63.03％ of the total abundance of the species.The length-weight relationship with sex combined for the whole year was described as W=4.7×10-6 SL3.183 (R2=0.962,n=1842).Monthly changes in the sexual maturity periods and gonadosomatic index of Chaeturichthys stigmatias were observed,where the reproductive period was from April to May and lasted to early June in the Yellow River estuary and its adjacent waters.There was no significant difference between sexes with regard to the relationship between percentage of sexual maturity and standard length of C.stigmatias.A logistic curve was fitted to depict the proportion of sexual maturity in relation to standard length,and the parameters were derived from the curve,with a K value of 0.039 and mean length at sexual maturity of 117.92 mm for the species in the Yellow River estuary.关键词
矛尾虾虎鱼/黄河口/体长组成/体长-体重关系/平均性成熟体长Key words
Chaeturichthys stigmatias/Yellow River estuary/size composition/length-weight relationship/mean size at sexual maturity分类
农业科技引用本文复制引用
孟宽宽,王晶,张崇良,任一平,徐宾铎..黄河口及其邻近水域矛尾虾虎鱼渔业生物学特征[J].中国水产科学,2017,24(5):939-945,7.基金项目
公益性行业(农业)科研专项经费项目(201303050). （农业）
