The patterns of recruitment of sea bass, Dicentrarchus labrax L. from nursery areas in England and Wales and implications for fisheries management
The patterns of recruitment of sea bass, Dicentrarchus labrax L. from nursery areas in England and Wales and implications for fisheries management
复制标题
英格兰和威尔士苗圃区鲈鱼 Dicentrarchus labrax L. 的补充模式及其对渔业管理的影响
DOI：
10.1016/j.fishres.2003.11.013
复制
发表时间：
2004
影响因子：
2.4
通讯作者：
M. Pawson
中科院分区：
文献类型：
--
作者：
G. Pickett;D. Kelley;M. Pawson
1988 年至 1994 年间，在英格兰和威尔士周围的 11 个苗圃区对总共 6438 条总长度不到 36 厘米的鲈鱼 Dicentrarchus labrax L. 进行了标记和释放。目的是通过重新捕获的分布来阐明幼鲈和青少年鲈的扩散模式，并通过将 36 厘米以上的鲈鱼招募到渔业中来揭示保护的潜在效益。通过关闭育苗区来消灭幼鲈。报告的总体重新捕获率为 3.7%，其中 65.8% 的重新捕获的鲈鱼尺寸超过 36 厘米 EC 最小尺寸。大部分重新捕获的鲈鱼（总共 65%，其中 56% 的鱼体长超过 36 厘米）是在标记地点当地的渔业中捕获的，而重新捕获的 22% 是在各自所属区域以外的渔业中捕获的，这表明不同地区之间招募鲈鱼的情况存在很大程度的混合。值得注意的是，一些鲈鱼从英格兰东南部和中南海岸迁移到威尔士和英格兰西北部。沿海渔业的招募人员分布不均，东南部渔业从其他地方招募的人员很少，而西北渔业则从其他地区的苗圃区招募的人员。据报道，在英国以外的渔业中重新捕获的 235 条鲈鱼中，只有 4 条带有标签，这表明英格兰和威尔士的封闭育苗区对幼鲈鱼的保护主要受益于英国近海渔业。
A total of 6438 sea bass, Dicentrarchus labrax L., measuring less than 36cm total length, were tagged and released in 11 nursery areas around England and Wales between 1988 and 1994. The aims were to elucidate, through the distribution of recaptures, the dispersal patterns of juvenile and adolescent bass, and by the recruitment of bass above 36cm to fisheries, to reveal the potential benefits of protecting juvenile bass by closing nursery areas. The reported recapture rate was 3.7% overall, with 65.8% of the bass recaptured being over the 36cm EC minimum size. The majority of bass recaptured (65% in total, 56% of fish over 36cm) were taken in fisheries local to the tagging sites, whilst 22% of the recaptures were made in fisheries outside the respective home regions, indicating substantial mixing of recruiting bass between regions. Notably, some bass moved from the southeast and central south coasts of England to Wales and northwest England. The distribution of recruits to the coastal fisheries was uneven, with the southeast fishery receiving little recruitment from elsewhere, whilst the northwest received recruitment from nursery areas in all other regions. Only four tagged bass out of 235 recaptured were reported from non-UK fisheries, indicating that the main benefits from the protection of juvenile bass by closed nursery areas in England and Wales accrue to UK inshore fisheries.