摘要
根据闽南海区灯光围网作业信息船1989～1998年9180网次渔捞记录资料,应用模糊数学方法,对台湾海峡南部中上层鱼类年间种类组成的相似程度进行模糊识别.结果得出,台湾海峡南部中上层鱼类群聚优势种存在明显的鱼种交替现象,年间种类组成的模糊贴近度变动于0 659～0 923之间,平均为0 791.模糊聚类分析表明,自1992年以来,该海区中上层鱼类种类组成虽已发生一定的变化,但其年间的模糊贴近度总体上仍处于较好的水平.综合分析认为台湾海峡南部中上层鱼类群聚结构较为稳定,资源状况良好,并具有较大的开发利用潜力.
A fuzzy mathematical method is used to discriminate the similarities of pelagic fishes landed in the 9 180 hauls by 10 light-seine information vessels in the southern Fujian waters from 1989 to 1998. The results indicate that the dominant species of the communities has an obvious alternation and the fuzzy adjacency of annual species composition varies between 0.659 and 0.923 with an average value of 0.791. The fuzzy clustering analysis indicates that the annual fuzzy adjacency in general remains good although the species composition of the pelagic fishes has changed to a certain degree since 1992. It is concluded that the community structure of pelagic fishes in the southem Taiwan Strait remains relatively stable and the state of fish stocks shows a good potentiality for a larger utilization.
出处
《海洋学报》
CAS
CSCD
北大核心
2003年第S2期29-34,共6页
基金
福建省海洋与渔业局资助项目(闽水科:1998-08).
关键词
中上层鱼类
种类组成
相似程度
模糊识别
台湾海峡南部
pelagic fishes
species composition
similarity fuzzy distinguishability
southern Taiwan Strait
