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首页> 外文期刊>Journal of the Korean Fisheries Society >Reproductive biology and population dynamics of Latreutes planirostris in the South-Western waters of Korea
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Reproductive biology and population dynamics of Latreutes planirostris in the South-Western waters of Korea

机译：朝鲜西南水域扁藻的生殖生物学和种群动态

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摘要

Reproductive biology and population dynamics of Latreutes planirostris were investigated on the south western waters of Korea, from June 2001 to May 2002. This paper describes sex ratio, population growth, and reproductive aspects of Latreutes planirostris. Brood size was an isometric function of female carapace length. Based on dry weight, reproduction effort (mass of eggs/mass of female) averaged 0.23. Ovarian examination showed that there was significantly higher gonadosoinatic index from May toSeptember, with a peak in June. Statistical analysis revealed that the ovarian dry weight of females with eyed eggs was significantly higher than that of those with non-eyed eggs. This suggests that females were potentially consecutive breeders. Sex ratio showed that female is more numerous than male. Growth parameters, mortality, and recruitment were estimated by monthly length-frequency data. Growth parameters were estimated, using the seasonalized von Bertalanffy growth function model (L_v = 12.70 mm CL, K = 0.87yr~(-1), C = 0.96, WP = 0.59). The recruitment pattern was twice a year.
机译：2001年6月至2002年5月，在韩国西南水域调查了Laterutes planirostris的生殖生物学和种群动态。本文描述了Latreutes planirostris的性别比，人口增长和生殖方面。育雏尺寸是雌性甲壳长度的等距函数。基于干重，繁殖力（鸡蛋质量/雌性质量）平均为0.23。卵巢检查显示，从5月到9月，性腺激素指数显着升高，6月达到峰值。统计分析表明，有眼卵的雌性卵巢干重明显高于无眼卵的雌性。这表明雌性可能是连续的育种者。性别比表明，女性比男性多。生长参数，死亡率和募集量通过每月的长度频率数据进行估算。使用季节性冯·贝塔朗菲生长函数模型（L_v = 12.70 mm CL，K = 0.87yr〜（-1），C = 0.96，WP = 0.59）估算生长参数。招聘模式是每年两次。

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