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根据2012年5月(春季)、10月(秋季)对象山港口东北部海域进行的两次底拖网渔业资源调查所获得的鱼类数据资料,分析了该调查海域的鱼类种类组成、生物多样性等。结果表明:象山港口东北部海域春秋两季共鉴定出鱼类47种,隶属10目28科42属,其中春季共有鱼类33种,优势种为日本鳀、六丝钝尾虾虎鱼等2种;秋季共有鱼类28种,优势种仅有龙头鱼等1种。根据不同季节ABC曲线变化,象山港口东北部海域春秋季鱼类的丰度曲线均在生物量曲线之上,说明该海域鱼类生物群落处于不稳定状态。春季鱼类渔获率普遍高于秋季,这可能主要是因为分布在该海域的鱼类以洄游性种类居多之故。
Based on the data on fish stocks obtained from the two bottom trawl fisheries surveys conducted in May 2012 (spring) and the northeast of the port of mountain in October (autumn), the species composition, Sex and so on. The results showed that 47 species of fish were identified in spring and autumn in the northeastern part of Xiangshan Harbor, belonging to 10 orders, 28 families and 42 genera. Among them, there were 33 species of fish in spring and the dominant species were Japanese goose and six-thread blunt goby There are 28 species of fish in autumn and only 1 dominant species such as fishes. According to the changes of ABC curves in different seasons, the abundance curves of spring and autumn fish in the northeastern part of Xiangshan Harbor are all above the biomass curve, indicating that the fish biomes are in an unstable state. The catch rate of fish in spring is generally higher than that in autumn, which may be mainly because the fish distributed in this area are mostly migratory species.