摘要
自从远东拟沙丁鱼在我国开发以来,引起了水产界的广泛重视,但关于其种群研究的文章尚未见到。依作者近几年对黄海区远东拟沙丁鱼的研究,该区远东拟沙丁鱼有两个群体,即一个是产卵群体,一个是索饵群体。本文则是用判别分析和逐步判别的统计学方法研究远东拟沙丁鱼的种群。计算结果表明,这两群标本之间都存在着统计学上的明显差异性。特别在利用对鱼类种群鉴定起决定作甩的计数性状进行判别时,差异的显著水平更高,其F值为116.93,回判成效为98.65％,证实了黄海远东拟沙丁鱼隶属于两个不同的种群。
The discovery of S. melanosticta from China has brought a wideattention to the fisheries circle. Recently, the authors noticed that S. melanostictaappears to be two populations in the Yellow Sea region, i. e. a spawning populationand feeding population. In this paper, the population of S. melanosticta was studi-ed by means of discriminatory analysis and successive discrimination methodin biometrics. The results from calculation indicated that the specimens oftwo populations had biometrically significant difference, especially in charactersof count which plays a decisive role in population determination. The F is 116.93and rate of right is 98.65%. These figures provided a strong evidence that theS. melanosticta from Yellow Sea belongs to two different populations.
出处
《水产学报》
CAS
CSCD
北大核心
1989年第3期215-220,共6页
Journal of Fisheries of China
关键词
远东
拟沙丁鱼
种群
判别分析
Sardinops melanosticta
population
discriminatory analysis
