福建海区单拖渔业现状浅析

本文根据1998-2003年福建海区拖网渔业资源监测以及1995-1997年间闽南台湾浅渔场单拖渔业资源调查、1998年和2000-2001年福建海区拖网定点调查的资料,论述和分析福建海区单拖渔业的现状。结果表明:目前整个单拖渔业虽然船数削减,实际却加大渔船功率,作业时间延长,促使年产量、单位产量不断提高,导致渔获组成发生很大变化,由低质小型鱼类、生命周期短的头足类、虾蟹类支撑,渔获鱼类质量较差,经济效益下降;另一方面头足类、虾蟹类资源量年间波动性较大,易受捕捞过渡影响,很难长时间承担目前捕捞压力。为此,文中提出加强严格实行"双控制度"及控制网目规格等管理建议和意见,为有关渔业管理和生产部门提供参考依据。

Status Analysis of the Otter Trawl Fishery in Fujian Sea Area

Based on the data of the trawl fishery resource monitoring from 1998 to 2003 in Fujian sea area,the otter trawl fishing survey from 1995 to 1997 in Minnan-Taiwan Bank Fishing Group and the trawl fishing survey from 2000 to 2001 in Fujian sea area,the article discussed and analyzed the status of otter trawl fishery in Fujian Sea area.The results indicated that although the total number of fishing vessels was decreasing,the total tonnages per vessel was increasing and the fishing time was longer,resulting in increasing of the annual catch and the catch per unit effort.The economic benefit is low as the catch composition changed markedly,which mostly consisted of unvalued small fish,short lifecycle cephalopod and crustacean.On the other hand,the otter trawl fishery resource is easy to be excess fishing for the catch consisting of short lifecycle cephalopod and crustacean fluctuated annually.At present,the levels of fishing effort are not commensurate with sustainable use of fishery resources.To prevent or eliminate excess fishing capacity,a "double control" measure,controlling mesh size and some management approaches are put forwarded in this paper.