首页 | 本学科首页   官方微博 | 高级检索  
     检索      

福建官井洋大黄鱼个体生殖力的研究
引用本文:郑文莲,徐恭昭.福建官井洋大黄鱼个体生殖力的研究[J].水产学报,1964,1(1):1-17.
作者姓名:郑文莲  徐恭昭
作者单位:中国科学院海洋研究所 (郑文莲),中国科学院海洋研究所(徐恭昭)
摘    要:本文是研究大黄鱼生殖力种内变异的第二篇报告。所依据的材料是1959年5月在福建东北部官井洋产卵场收集的,共升算了173个样品。据以观察分析的标本全系未出现透明和游离状卵子的典型Ⅳ期卵巢。卵子计数取样与处理方法以及术语概念均与作者在“浙江岱衙洋大黄鱼个体生殖力的研究”一文中所述者完全相同。

关 键 词:大黄鱼  生殖力  产卵场  种内变异  卵子  个体  卵巢  观察分析  标本  研究

ON THE PECULIARITIES OF THE INDIVIDUAL FECUNDITY OF THE LARGE YELLOW CROAKER,PSEUDOSCIAENA CROCEA(RICHARDSON),OFF KUANCHING-YANG,FUKIEN
Zheng Wen-lian and Xu Gong-zhao.ON THE PECULIARITIES OF THE INDIVIDUAL FECUNDITY OF THE LARGE YELLOW CROAKER,PSEUDOSCIAENA CROCEA(RICHARDSON),OFF KUANCHING-YANG,FUKIEN[J].Journal of Fisheries of China,1964,1(1):1-17.
Authors:Zheng Wen-lian and Xu Gong-zhao
Institution:Institute of Dceanology, Academia Sinica;Institute of Dceanology, Academia Sinica
Abstract:This paper is the second of a series of studies on the intraspecific variation offecundity of the Large Yellow Croaker, and is concerned with the peculiarities ofthe individual fecundity of the spawning population of Kuanching-yang, Fukian. The material for the present study was collected during the period from March-June, 1959 in the spawning ground. Based upon 173 samples studied, the results aresummarized as follows: 1. The individual absolute fecundity (r) varied between 39.9 and 900.6(×1000) (average, 256. 8 ); the individual relative fecundity r/l varied between1, 410 and 18, 610 (eggs/cm) (average, 7,540) and r/q between 125 and 907(eggs/g)(average, 548). The variability is shown diagrammatically as scatter diagrams offecundity and standard-length, body-weight, age, growth coefficient of condition,standard-length×body-weight (l·q) and (l·q)~(1/2) in Figs. 1-3, 8-11. 2. The dynamical peculiarities of individual fecundity (r and r/l) of theKuanching-yang spawning population, like the Taichu-yang spawning population,increase with increase in weight, length and age. The relations of individual absolutefecundity (r) and individual relative fecundity r/l to length and age are curved,but differently sloped, and to weight are linear. The individual relative fecundity r/qdoes not increase or decrease markedly with length, weight and age. 3. The relations of individual fecundity (r,r/l, r/q) to coeffecient of condition(K =W/L~3 × 100) and to relative condition coefficient (K=W/W ×100) are not quiteobvious, i .e. ) they do not increase or decrease regularly with K and K. 4. The fecundity coefficient (C=(l·q)/r) varied between 0.22 and 1.912,mostly between 0.42 and 0.82.The individual absolute fecundity (r) was found to be related to "l·q" and "(l·q)~(1/2)" linearly, it was like the relation between individualfecundity (r, r/l) and body-weight. Thus the fecundity coefficient is still a goodindex for determining the peculiarity of individual fecundity of fish. 5. The individual fecundity (r, r/l) not only increases with increase of lengthand weight, but also relates to peculiarity of sexual maturity, i .e. , the individualsof first maturity have a lower mean individual fecundity than individuals of repeatedsexual maturity. 6. The fast-growing individuals have a higher mean individual fecundity (r,r/l) than slow-growing individuals in the same age-group. Therefore growth is oneof the main influential factors.
Keywords:
本文献已被 CNKI 维普 等数据库收录!
点击此处可从《水产学报》浏览原始摘要信息
点击此处可从《水产学报》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号