Spatially structured interactions between lobsters and lobster fishers in a coastal habitat: fine-scale behaviour and survival estimated from acoustic telemetry
Spatially structured interactions between lobsters and lobster fishers in a coastal habitat: fine-scale behaviour and survival estimated from acoustic telemetry
复制标题
沿海栖息地龙虾和龙虾渔民之间的空间结构相互作用：通过声学遥测估计的精细行为和生存
DOI：
--
复制
发表时间：
2013
期刊：
影响因子：
--
通讯作者：
E. M. Olsen
中科院分区：
文献类型：
--
作者：
J. Wiig;E. Moland;T. O. Haugen;E. M. Olsen
捕鱼可以对海洋种群的生态和进化产生深远的影响。了解人口水平的变化最终取决于对个体生存及其在时间和空间上的变化的了解。我们使用声学标签和接收器网络来监测暴露在挪威斯卡格拉克海岸商业性和娱乐性诱捕渔业中的欧洲龙虾(Homarus Gammarus)的个体行为和命运。2011年8月，在龙虾捕捞季节之前和期间，对50只超过法定最低尺寸的雄性龙虾进行了标记和监测。我们还量化了捕捞活动的空间和时间变化。养殖场大小对渔业存活概率没有显著影响。然而，捕捞活动在很大程度上存在细微的空间差异，短期栖息地远离诱捕密集区域的龙虾的存活概率显著较高。此外，16.7%的总体生存概率表明，渔业开发是一种可行的方式。
Fishing can have profound impacts on the ecology and evolution of marine populations. Understanding population-level changes ultimately depends on knowledge about individual survival and how it varies in time and space. We used acoustic tags and a network of receivers to monitor individual behaviour and fate of European lobster (Homarus gammarus) exposed to commercial and recreational trap fisheries on the Norwegian Skagerrak coast. In August 2011, 50 male lobsters above minimum legal size were tagged and monitored before and during the lobster fishing season. We also quantified the spatial and temporal variation in fishing activity. There was no significant effect of home-range size on the probability of surviving the fishery. However, there was substantial fine-scale spatial variation in fishing activity, and lobsters with short-term home ranges positioned away from trap-dense areas had a significantly higher survival probability. Also, the overall survival probability of 16.7% suggests that fishing dep...