文章摘要
邱望春,蒋定和.东海带鱼Trichiurus haumela(Forskal)个体生殖力的研究[J].水产学报,1965,2(2):13~25
东海带鱼Trichiurus haumela(Forskal)个体生殖力的研究
A STUDY OF THE INDIVIDUAL FECUNDITY OF TRICHIURUS HAUMELA(FORSKAL)OF EAST CHINA SEA
  
DOI:
中文关键词: 大连紫海胆  人工育苗  幼虫
英文关键词: 
基金项目:
作者单位
邱望春 水产部东海水产研究所 
蒋定和 水产部东海水产研究所 
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中文摘要:
      鱼类生殖力的研究是分析种群数量变动的重要环节之一,特别是与补充群体的联系最为密切。此外,生殖力指标及其变动规律也是探讨鱼类种群特征的重要资料。 带鱼是我国最主要的海产经济鱼类之一,近年来产量一直居于首位。但对其个体生殖力的研究还很少,仅在某些综合性的研究报告中有些零星记载,以此作为探索带鱼种群数量变动规律的生物学基础资料是不够的。本文就东海近海所采集的部分带鱼卵巢标本,对它的个体生殖力的变动规律及特点等进行了初步分析和讨论,希望得到批评、指正。
英文摘要:
      This paper presents a preliminary analysis on the dynamics and characters of in-dividual fecundity of Trichiurus haumela, based upon the study of 354 ovary samplesof the fish collected off East China Sea ain 1963-1964. Among the specimens measured the number of visible eggs of each individualTrichiurus haumela, in the East China Sea, ranges from 12.8-330. 9(×1,000), ge-nerally 30-50 (×1,000). The number of eggs spawned by each anal length group is33% of the number of visible eggs in that group. The number of visible eggs increaseswith body weight, anal length and age; among these three growth indices, body weightis the most important, followed by the anal length and the least being the age. The number of visible eggs of individual per aual length unit (r/l) ranges from50-650, that of per body weight unit (r/q) ranges from 52-261, generally 90-160.The relation of body weight and anal length with the number of visible eggs approa-ches a wavy curve line indicating that the variability is rather stable. This paper brings out the problem of the relation between individual fecundityand growth index. The problem of biological characteristics reflected in individualfecundity in population is also discussed.
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