应用电泳资料探讨黄海中部秋季带鱼的种群和洄游

六十年代后期,黄渤海带鱼种群逐渐衰减,到七十年代中期已形不成渔业。但从七十年代末期,黄海中部秋季带鱼的产量又明显的回升,近几年已达到相当的规模,几个主要渔业公司秋季多来此捕捞。这股鱼从何而来?隶属于哪一个种群有不同的看法。这就给渔业生产和研究者们提出了一个新的课题。 研究鱼类洄游的传统方法是标志放流。但它需用活鱼,且因回收率很低,要求放流鱼的数量较多,尤其是象带鱼这样一些离水后容易

STUDIES ON POPULATION AND MIGRATION OF AUTUMN HAIRTAIL, TRICHIURUS HAUMELA (FORSKAL) IN CENTRAL PART OF YELLOW SEA BY MEANS OF ELECTROPHORETIC DATA

The catch oi autumn hairtail in the cential part of the Yellow Sea has been increasing in the past years. There are different points of view as regards whence these fishes come from since the local population, Yellow-Bohai Seas population, has been exhausted by over-exploitation. The myogen has been examined by electrophoresis in polyacrylamide gel. The electrophoretic patterns agree with that of northern East China Sea population and differ from that of Yellow-Bohai Sea population. The autumn hairtail should, therefore, belong to the northern East China Sea population although they occur in the distribution area of the Yellow-Bohai Sea population.