Canadian Journal of Fisheries and Aquatic Sciences, Ahead of Print.
Landscape ecology has mainly been integrated in aquatic science to describe patterns and processes in stream networks, but many lakes are connected through their tributaries and are also impacted by their position and connectivity within the watershed. This information on lake characteristics can be used by inland fisheries managers that oversee large landscapes comprising many waterbodies to predict (i) species composition; (ii) population dynamics and productivity; (iii) recreational fishing pressure; and (iv) overall conservation concern. We developed a methodology to assess these four items for the rainbow trout (Oncorhynchus mykiss) fishery of British Columbia by presenting a case study focused on the Clearwater and North Thompson watersheds using the following: the connectivity of lakes within the stream network to predict rainbow trout presence, stream order and lake area to estimate habitat availability and predict population dynamics and productivity (supply), and travel time from population centres to predict recreational fishing pressure (demand). By incorporating connectivity and environmental proxies of habitat, we explore patterns in population dynamics that can be used by fisheries managers to identify populations sensitive to overfishing or disturbance.

中文翻译：

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基于景观特征预测本土虹鳟鱼种群的分布、生产、休闲捕鱼需求和保护问题

加拿大渔业和水产科学杂志，提前印刷。
景观生态学主要被整合到水生科学中来描述河流网络中的模式和过程，但许多湖泊通过其支流相连，也受到它们在流域内的位置和连通性的影响。监督由许多水体组成的大型景观的内陆渔业管理者可以使用关于湖泊特征的这些信息来预测 (i) 物种组成；(ii) 人口动态和生产力；(iii) 休闲捕鱼压力；(iv) 整体保护问题。我们开发了一种方法来评估不列颠哥伦比亚省虹鳟鱼 (Oncorhynchus mykiss) 渔业的这四个项目，方法是使用以下案例研究重点关注克利尔沃特和北汤普森流域：河流网络内湖泊的连通性以预测虹鳟鱼的存在、河流秩序和湖泊面积以估计栖息地可用性并预测人口动态和生产力（供应），以及从人口中心出发的旅行时间以预测休闲捕鱼压力（需求）。通过结合栖息地的连通性和环境代理，我们探索了渔业管理者可以用来识别对过度捕捞或干扰敏感的种群的种群动态模式。