绥芬河珠星雅罗鱼溯河生殖群体结构特征研究  

The Structure of Spawning Population of Anadromous Japanese Dace in Suifen River

作　　者：赵春刚[1] 王维坤 马国军[1] 王秋实[1] 张立民[1] 

机构地区：[1]中国水产科学研究院黑龙江水产研究所,黑龙江哈尔滨150076 [2]黑龙江省东宁县鲑鱼放流站,黑龙江东宁157200

出　　处：《水产学杂志》2011年第3期25-28,共4页Chinese Journal of Fisheries

基　　金：黑龙江省科技攻关项目(GA06B203-4)

摘　　要：珠星雅罗鱼Leuciscus haronensis(Gunther)为鲤科鱼类中少有的溯河洄游类型。本研究采集了880尾2009年度绥芬河溯河洄游生殖群体样本,分析了溯河期、产卵期以及个体的体长、体重组成、年龄与生长、生殖能力、成熟系数、肥满度等主要生态学特征及种群数量。绥芬河珠星雅罗鱼生殖群体分三批溯河繁殖,即3月中旬至4月上旬;4月中旬至4月末;5月初至5月中旬。每批次体色、性比、成熟系数、肥满度等均有所差异。其中第二批次洄游群体为主要的产卵群体。根据绥芬河珠星雅罗鱼的生态学特征提出了该鱼的增殖保护措施。Japanese dace（Leuciscus hakonensis）,the only anadromous member in the family of Cyprinidae,is found at the coast of Pacific in Asia.The main ecological characteristics including body length,body weight,age,growth and fecundity,gonado-somatic index,and condition factor in spawning migration period were evaluated by the 890 samples collected in Suifen River in 2009.The broodstock migrating to the upstream were found to spawn in Suifen River three times,from mid-march to the beginning of April,from middle to the end of April,and in May.The spawning fish showed golden in body color in the first spawn,silver in body color in the second spawn,and deep color in the third spawn.There were different sex ratio,gonado-somatic index,and condition factor in spawning population,the second batch being the main predominant reproductive population.Some measurements to protect the proliferation of this fish were proposed based on the main ecological characteristics here.

关 键 词：绥芬河 珠星雅罗鱼 生殖群体生态学 资源保护 

分 类 号：Q178.1[生物学—水生生物学]