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应用模糊数学方法对厦门近海大黄鱼生殖群体渔获年龄组成低龄化的分析
林光纪1
福建省水产厅
摘要:
本文应用模糊数学方法分析了厦门海区大黄鱼生殖群体的渔获年龄组成,计算了1980—1984年厦门海区大黄鱼的低龄度。结果表明:该海区大黄鱼群体资源正处于加剧衰退阶段,必须限制大机围和流钓等在捕捞期限内的船数投入。
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ANALYSIS OF THE AGE COMPOSITION OF SPAWNING STOCK OF YELLOW CROAKER BY FUZZY MATHEMATIC METHOD
Abstract:
Fuzzy mathematic method was used to analyze the age composition of spawning stock of yellow croaker of-shore Xiamen. This paper calculated the degree of low-age in 1980-1984. Result of analyses showed that the age composition of yellow croaker off-shore Xiamen was on recession stage, and the recession was rapid. Lastly, this paper shows that fishing intensity must be reduced further.
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