| 闽江口海蜇渔业生态学研究 |
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| 引用本文： | 卢振彬,颜尤明,戴泉水,陈利琛,陈金淦. 闽江口海蜇渔业生态学研究[J]. 应用生态学报, 1999, 10(3): 341-344 |
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| 作者姓名： | 卢振彬 颜尤明 戴泉水 陈利琛 陈金淦 |
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| 作者单位： | 1. 福建省水产研究所, 厦门 361012;2. 福建省长乐市水产局, 长乐 350200 |
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| 摘 要： | 根据1993年5～9月的调查材料,研究了福建闽江口海域海蜇的渔业生态学。其密度和生物量高峰分别出现在6月20日和7月10日;群体伞径范围为18～546mm,平均328.8mm.体重范围为0.5～9540g,平均2877.4g;伞径为345～485mm的雌性有性繁殖力在1120.6×104～3754.8×104粒,平均2444.7×104粒,有性生殖期在8月初至11月;采用高次方程和指数高次方程分别模拟伞径和体重生长,生长方程为:Φt=12.1337+17.7048t+3.1385t2-0.2049t3+0.00302t4,logeWt=-0.5749+1.4818t-0.0771t2+0.00129t3;以生物经济学原理确定7月20日为合理开捕期,开捕伞径为465.8mm.讨论分析了执行合理开捕期和开捕规格,对保护和合理利用海蜇资源,提高经济效益的重要意义.
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| 关 键 词： | 海蜇 生态分布 生长 有性繁殖 闽江口海区 |
| 收稿时间： | 1998-12-15 |
Fishery ecology of jellyfish at Minjiang River estuary. |
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| Lu Zhenbin,Yan Youming,Dai Quanshui. Fishery ecology of jellyfish at Minjiang River estuary.[J]. The journal of applied ecology, 1999, 10(3): 341-344 |
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| Authors: | Lu Zhenbin Yan Youming Dai Quanshui |
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| Affiliation: | Fujian Fisheries Research Institute, Xiamen 361012 |
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| Abstract: | The fishery ecology of jellyfish at Minjiang River estuary was studied from May to September 1993. The peaks of density and biomass of the jellyfish appeared in June 20 and July 10, respectively. The diameter of the umbrella part ranged from 18 mm to 546 mm, averaging328.8mm. The body weight ranged from 0.5g to 9540g, averaging2877.4 g. The sexual reproduction capability of individuals with the diameter of umbrella part ranged 345～485mm was 1120.6×104～3754.8×104 eggs, averaging 2444.7×104 eggs, and the period of sexual reproduction continued from the beginning of August to November. The diameter growth of the umbrella part and the body weight of the jellyfish could be calculated respectively by the power equation and power exponential equation: Φt=12.1337 + 17.7048t + 3.1385 t2-0.2049t3+0.00302t4, logeWt=-0.5749+1.4818t-0.0771t2+0.00129t3. From the standpoint of biology and economics, the optimum date for starting fishing may be in July 20, with the optimum diameter of the umbrella part by 465.8mm. The optimum date and size of actual beginning fishing were also discussed, which would be important for the conservation and exploitation of the resources of jellyfish, and for the increasing economic effect. |
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| Keywords: | Jellyfish Ecological distribution Growth Sexual reproduction Minjiang River estuary. |
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