Growth and Life Span of the Hatatatenumeri-dragonet Repomucenus valenciennei in Tokyo Bay, Japan
Growth and Life Span of the Hatatatenumeri-dragonet Repomucenus valenciennei in Tokyo Bay, Japan
复制标题
日本东京湾的 Hatatenumeri-dragonet Repomucenus valencienei 的生长和寿命
DOI：
10.2331/fishsci.62.850
复制
发表时间：
1996
影响因子：
1.9
通讯作者：
M. Shimizu
中科院分区：
文献类型：
--
作者：
K. Ikejima;M. Shimizu
利用1990年6月至1993年9月在东京湾通过三种拖网调查收集的13287份标本，研究了巴伦夏龙（Repomucenus valenciennei）的生长。通过对长度频率数据的分析，估计了生长和寿命。使用1990年和1991年的年级来估计增长曲线的参数。小龙的生长表现出季节性波动，用修正logistic公式最能表达，其中生长速率在一年内以一个周期变化。据估计，雄性和雌性的平均寿命均为两年，平均标准长度为94毫米，雄性为110毫米。
The growth of the Hatatatenumeri-dragonet Repomucenus valenciennei was studied based on 13,287 specimens collected by three kinds of trawl survey in Tokyo Bay during the period from June 1990 to September 1993. Growth and the life span were estimated by analyzing length frequency data. Year classes of 1990 and 1991 were used to estimate the parameters of the growth curves. The growth of the dragonet showed seasonal oscillation and was best expressed by modified logistic formulae, in which the growth rate changes with a cycle in a year. The life span was estimated to be two years for both sexes, reaching 94 mm for females and 110 mm for males in mean standard length.