浙江省单拖渔业现状分析与研究

利用2001~2006年浙江省单拖渔业典型性调查数据和2005~2008年的单拖作业监测资料,从浙江省单拖捕捞力量和产量分布、渔获对象和资源密度变化及经济效益、劳动力组成等几个方面进行了初步分析。结果表明,近几年浙江省单拖作业船数保持在2200艘左右,产量在40×104t左右,单船净利润存在年间波动,以2005年最高;单拖作业渔场分布较广,渔获物以头足类和中下层鱼类为主;近年来经济鱼类比例下降,而其它低值鱼类比例上升。文章最后提出了当前浙江单拖渔业存在的问题,并提出了相应管理建议以供参考。

Current analysis and investigation on fishery of otter trawl net in Zhejiang Province

Based on representative investigation data of society gained from 2001 to 2006 and the monitoring data of otter trawl net fishery from 2005 to 2008,the paper primary analysed the distribution of the fishing power and yield in fishery of otter trawl net,the variation of fishing resource density and composition of catches,the economic income and labor composition in the fishery.The results showed that in Zhejiang province,the number of otter trawl net vessel was about 2200 in recent years,the catch of these vessels was about 40×104 t,and the average net profits of single vessel fluctuated and achieved the top in 2005;The mainly capture was composed of cephalopod and groundfish,and its fishing ground distributes widely,the proportion of high commercial value fish declined,however the proportion of low-value fish increased in recent years.According to the existent problems of the otter trawl net fishery,the corresponding management suggestions for better development of the fishery were put forward.