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首页> 外文期刊>Oceanographic Literature Review >Population growth and maturity characteristics of Commerson s anchovy (Stolephorus commersonnii La-cepede, 1803) along the southwest coast of India
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Population growth and maturity characteristics of Commerson s anchovy (Stolephorus commersonnii La-cepede, 1803) along the southwest coast of India

机译：沿着印度西南海岸的人口增长和普通斯旺西（STOLephorus Commersonnii La-Cepede，1803）的人口增长和成熟特征

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摘要

Population and maturity characteristics of Commerson s anchovy (Stolephorus commersonnii) from the south-west coast of India have been presented here to elaborate upon the fishery of the species in the region. The present study on Commerson s anchovy formed the first of its kind from the Indian waters and showed that the lifespan of the species is 3.06 years. The results also revealed that Commerson s anchovy attains the length of 10.2, 13.5 and 14.7 cm at the end of 1st, 2nd and 3rd year of its life. The recruitment pattern of Commerson s anchovy has two peaks-a minor one from February to March and a major one from June to July. The length-frequency analysis for the probability of capturing the species showed that the length at the first capture was 8.2 cm, indicating that the fish mostly being commercially exploited after they reach the first maturity i.e. The length of 7.1 cm. Total mortality, natural mortality and fishing mortality of the species were calculated as 2.78, 2.18 and 0.64 Y-1, respectively. Virtual population analysis (VPA) indicated that the number of natural mortality of the species is much larger than the commercial utilization, indicating the low exploitation of the species from the southwest coast of India.
机译：来自印度西南海岸的人口和成熟特征来自印度西南海岸的凤尾鱼（Stolephorus Commersonnii），以便在这里详细阐述该地区物种的渔业。关于普通凤尾的本研究形成了来自印度水域的第一个，并表明物种的寿命为3.06年。结果还透露，公众的S凤尾鱼在其生命中第1次和第3年结束时达到10.2,13.5和14.7厘米的长度。众议院S凤尾鱼的招聘模式有两个峰 - 从2月到3月和6月到7月的主要一部分。捕获物种的概率的长度频率分析表明，第一捕获的长度为8.2厘米，表明鱼大多在达到第一成熟度之后商业剥削的。物种的总死亡率，自然死亡率和捕捞死亡率分别计算为2.78,2.18和0.64 y-1。虚拟人口分析（VPA）表明，物种的自然死亡率数量远大于商业利用率，表明来自印度西南海岸的物种的低利用。

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  • 来源
    《Oceanographic Literature Review》 |2021年第6期|1303-1304|共2页
  • 作者

    P.G. Nair; S. Joseph; V. Kripa; V.N. Pillai;

  • 作者单位

    Central Marine Fisheries Research Institute Kochi 682 018 India;

    Central Marine Fisheries Research Institute Kochi 682 018 India;

    Central Marine Fisheries Research Institute Kochi 682 018 India;

    Central Marine Fisheries Research Institute Kochi 682 018 India;

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