文章基本信息

标题：Length-Weight Relationship of Obscure Puffer ( Takifugu obscurus ) during Spawning Migration in the Yangtze River, China
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作者：Zhou Yang ; Yafen Chen
期刊名称：Journal of Freshwater Ecology
印刷版ISSN：0270-5060
电子版ISSN：2156-6941
出版年度：2003
卷号：18
期号：3
页码：349-352
DOI：10.1080/02705060.2003.9663969
出版社：Taylor & Francis
摘要：Length-weight relationships were estimated for obscure puffer (Takifugu obscurus) from the Yangtze River during the spawning migration period. The formulae for all individuals, females, and males were W=0.0110SL 3.3821 , W ♀=0.0119SL 3.3718 and W ♂=0.0183SL 3.2154 , respectively, where W is the body weight in g and SL is the standard length in cm. Pronounced sexual dimorphism in the length-weight relationship was observed with significant difference in the allometric coefficient of the length-weight relationship between females and males. These findings indicated that the length-weight relationships of obscure puffer could be used not only to estimate weight from standard length but also to differentiate sex.