ANALYSIS OF THE AGE COMPOSITION OF SPAWNING STOCK OF YELLOW CROAKER BY FUZZY MATHEMATIC METHOD
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

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.