| 闽南、台湾浅滩渔场红星梭子蟹的渔业生物学 |
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| 引用本文： | 叶孙忠.闽南、台湾浅滩渔场红星梭子蟹的渔业生物学[J].海洋渔业,1998,20(2):60-63. |
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| 作者姓名： | 叶孙忠 |
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| 作者单位： | 福建省水产研究所 厦门 |
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| 摘 要： | 闽南、台湾浅滩渔场单拖作业渔获的红星梭子蟹群体,其甲宽优势组为110～150mm;体重优势组为40～140g。雌雄个体差异不大。周年雌雄性比接近于1:1。雌性初届性成熟的甲宽为80mm,体重为32g,大量性成熟甲宽100～110mm,体重为60～80g。周年几乎都有生殖活动,盛期2～6月。摄食强度中等,以索饵前期的7、8月间和生殖前期的11月至1月间,平均摄食强度略大。
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| 关 键 词： | 红星梭子蟹 生物学 闽南 台湾浅滩 |
FISHERIES BIOLOGY OF RED SPOT SWIMMING CRAB,PORTUNUS SANGUINOLENTUS, ON THE MINNAN-TAIWAN BANK FISHING GROUND |
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| Ye Sunzhong Fisheries Research Institute of Fujian,Xiamen.FISHERIES BIOLOGY OF RED SPOT SWIMMING CRAB,PORTUNUS SANGUINOLENTUS, ON THE MINNAN-TAIWAN BANK FISHING GROUND[J].Marine Fisheries,1998,20(2):60-63. |
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| Authors: | Ye Sunzhong Fisheries Research Institute of Fujian Xiamen |
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| Institution: | Ye Sunzhong Fisheries Research Institute of Fujian,Xiamen,361012 |
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| Abstract: | The catch of red spot swimming crab, Portunus sanguinolentus, were caught with otter trawl on the Minnan - Taiwan Bank fishing ground. The dominant groups of the carapace width and body weight are 110 - 150mm and 40 - 140g, respectively. The sizes of the females and males differ greatly. The sex ratio of the year is nearly 1: 1. The females at first maturity were 80mm in carapace width and 32g in body weight, and a great number of maturity occurred in 100 - 110mm and 60 - 80g, respectively. The spawning period takes place almost all the year round, with the peak from February to June. The feeding intensity is moderate with slightly stronger occurring before feeding period in July and August and before reproductive period from November to January. |
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| Keywords: | Portunus sanguinolentus biology Minnam - Taiwan Bank |
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