论文部分内容阅读
本文根据2003～2004年张网作业的监测调查资料,研究分析了闽南海区张网作业渔获物组成。结果表明,闽南海区张网渔获种类多达156种,主要渔获种类为带鱼、康氏小公鱼、尖尾鳗、二长棘鲷、静、蓝圆和中华管鞭虾等14个类群组成,其渔获量合占总渔获量的79.5%;张网作业对闽南海区经济种类的损害较为严重,经济幼鱼、幼体在渔获物中所占的比重达39.3%,尤以张网禁渔期前后的3～4月和7月,经济幼鱼、幼体受损最为严重,其比重高达52.8%～74.0%。据估算此期间全海区张网作业损害带鱼、二长棘鲷、鲐鱼幼鱼1.12×104t,数量高达17.12×108ind。因此,建议在加强张网作业周年监测调查基础上,考虑适当调整或延长禁渔期,以利于渔业资源的合理利用。
In this paper, according to the monitoring data of Zhangwang operation from 2003 to 2004, the catch composition of Zhangwang operation in Minnan sea area is analyzed and studied. The results showed that there were 156 species of Zhang net catches in the southern Fujian sea area. The main catches were 14 species (octopus, Corvus xylophilus, Of the total catches, accounting for 79.5% of the total catches; Zhang network operations on the Taiwanese economy more serious damage to economic categories, economic juveniles, larvae in catch accounted for the proportion of 39.3%, especially in Zhang During the period from March to April and July, the larvae and larvae of the economy were the most severely damaged, accounting for 52.8% -74.0% of the net fishing season. It is estimated that during the whole sea area network operations damaged octopus, two long spiny snapper, snapper juvenile 1.12 × 104t, the number of up to 17.12 × 108ind. Therefore, it is suggested that on the basis of strengthening the annual monitoring survey of Zhang network operation, it is suggested to consider appropriate adjustment or extension of the fishing-off period in order to facilitate the rational utilization of fishery resources.