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1991年逐月对南澎列岛近海海域作底拖网调查 ,共捕获鱼类 1 32种 ,其中软骨鱼类 7种 (4目 6科 6属 ) ,硬骨鱼类 1 2 5种 (1 0目 5 8科 95属 ) ,后者以鲈形目居多 (6 9种 )。全年渔获优势种类为条尾鲱鲤、黑天竺鱼、二长棘鲷、大头狗母鱼、多齿蛇鲻、三线矶鲈、绿布氏筋鱼、多鳞鱼喜和乔氏台雅鱼等 9种 ,其渔获尾数分别占全年渔获总数 3%以上 ,出现的月份数皆不小于 8,渔获尾数之和是渔获总数的71 .1 %。季节性优势种类除全年优势种类外 ,尚有粗纹 、半线天竺鲷、印度白姑鱼、静 和翼红娘鱼等 5种 ;各种类全年渔获尾数及出现月份数相关 ,各月份的渔获尾数和渔获种数不相关 ;渔获物中仅有少量的中上层鱼类 (1 3种 )。就适温性而言 ,该海区鱼类以亚热带性为主并兼有热带性特征 ,以Shannon、Brillouin、Simpson和McIn tosh等多样性指标及相应的Hurlbert均匀度指标对逐月样本作估计 ,这 8种指标之间高度显著相关 ;该海域鱼类的Shannon多样性指标及相应的均匀度指标皆以秋冬季为高 ,春夏季较低。
In 1991, an end-to-end investigation was conducted on the offshore waters of the Nanpeng Islands on a monthly basis. A total of 132 species of fish were found, including 7 species of cartilaginous fish (6 orders, 6 orders of 4 orders), 115 species of teleosts 8 families and 95 genera), the latter with perciformes (69). The predominant species of catches for the year were: herring carp, black guinchilla, two-year-old spiny snapper, big-headed dogfish, multi-tooth snakehead, third line perch, 9 kinds of fish and so on. Their mantissa accounts for more than 3% of the total number of catches in the whole year respectively. The number of months appearing is all not less than 8, and the sum of catches is 71.1% of the total catches. In addition to the dominant species of seasonal species, there are 5 species of coarse-grained, half-tailed giant snapper, Indian white-tailed fish, calm and winged red-bonaked fish, and all kinds of year- Months of fishing mantissa and fishing species is not related; catch only a small amount of pelagic fish (13 species). In terms of adaptability, the fish in the sea area are mainly subtropical with tropism, and monthly samples are estimated based on Shannon, Brillouin, Simpson and McIn tosh indices and the corresponding Hurlbert evenness indices. There was a highly significant correlation between these eight indices. The Shannon diversity index and the corresponding evenness index of the fish in the sea area were high in autumn and winter, and lower in spring and summer.