The application of a management procedure to regulate the directed and bycatch fishery of South African sardine Sardinops sagax
The application of a management procedure to regulate the directed and bycatch fishery of South African sardine Sardinops sagax
复制标题
应用管理程序来监管南非沙丁鱼 Sardinops sagax 的定向捕捞和兼捕渔业
DOI：
10.2989/025776198784126700
复制
发表时间：
1998
影响因子：
1.2
通讯作者：
J. Brown
中科院分区：
文献类型：
--
作者：
J. D. Oliveira;D. Butterworth;B. Roel;K. Cochrane;J. Brown
南非沙丁鱼Sardinopsagax资源既受到以成鱼为目标的直接捕捞，也受到以凤尾鱼和白头鱼为目标的定向渔业中幼鱼和成鱼的兼捕。在所考虑的管理程序中计算了沙丁鱼的两个单独的TAC(总允许渔获量)。第一种是与沙丁鱼丰度相关联的直接TAC，第二种是兼捕TAC，其“凤尾鱼”成分与凤尾鱼种群动态相结合，作为凤尾鱼TAC的一部分，加上反映与圆形鲱鱼丰度无关的固定吨位的“圆形鲱鱼”成分。还纳入了远洋渔业的要求，例如经济上可行的最低年度定向捕捞量和每年可容忍的定向捕捞量最大下降百分比。单一管理程序的选择是基于对业绩统计数据的比较，例如……的风险。
The South African sardine Sardinops sagax resource is subjected to both directed fishing that targets adult fish, and bycatch of both juvenile and adult fish taken in the directed fisheries for anchovy Engraulis capensis and round herring Etrumeus whiteheadi. Two separate TACs (Total Allowable Catch) for sardine are calculated in the management procedures considered. The first is a directed TAC linked to sardine abundance, and the second is a bycatch TAC with an "anchovy" component coupled to the anchovy population dynamics as a proportion of the anchovy TAC, plus a "round herring" component reflecting a fixed tonnage independent of round herring abundance. Requirements from the pelagic industry, such as a minimum economically viable annual directed catch and a maximum percentage decrease in the directed TAC that could be tolerated from year to year are also incorporated. The selection of a single management procedure for implementation is based on the comparison of performance statistics such as risk of ...