Enhancing Recreational Fisheries Management and Stocking at Kenauk Nature

加强基诺克自然休闲渔业管理和放养

• 批准号: 580882-2022
• 负责人: Cooke, StevenSJ
• 金额: $ 2.19万
• 依托单位: Carleton University
• 依托单位国家: 加拿大
• 项目类别: Alliance Grants
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=745187
• 关键词: Enhancing; Recreational; Fisheries; Management; Stocking

Water temperature interacts with coldwater trout populations in a number of ways. For example, trout that are captured in recreational fisheries during warm summer temperatures or in the winter during ice fishing may experience elevated post-release mortality. In the case of managed waterbodies, suitable summer thermal habitat may become limiting for trout. Stocking decisions that do not adequately consider temperature can lead to mortality such that resources are wasted and fisheries supplementation targets are not met. From a biodiversity perspective, trout can be obligate hosts for imperiled freshwater mussels to complete their life cycle such that if thermal conditions exclude trout, mollusc populations may be extirpated. All of these issues are salient to Kenauk Properties LP which is a tourism outfitter that owns and operates the largest private nature reserve in Canada. They have concerns about how to better manage rainbow and brook trout populations (e.g., which fish to stock, where to invest in habitat restoration, how to optimize hatchery operations). We will conduct a multi-year study to consider the relevance of the thermal biology of trout to the management of fisheries resources at Kenauk. Objectives include 1). Characterize the thermal biology and oxygen conditions of ten fishing lakes within Kenauk reserve; 2). Determine how stocked trout use lakes of different thermal conditions with a particular focus on thermal habitat and depth selection. 3). Determine how exogenous stressors (such as fishing) influence thermal selection, physiological state, and survival of stocked trout. 4). Identify biomarkers that influence thermal selection and survival of stocked fish. 5). Characterize the seasonal habitat selection, movement and thermal biology of wild trout in the Kinonge River. The project ideas were developed using a co-production model that will extend throughout the project to ensure relevance of research to Kenauk. Collectively this research will generate new knowledge that will help Kenauk to better manage their stocked recreational fisheries resources in the face of climate change so they can continue to provide exceptional angling opportunities for their clients and also conserve remaining wild fish populations.

水温以多种方式与冷水鳟鱼种群相互作用。 例如，在温暖的夏季温度或冰上钓鱼期间，在休闲渔业中被捕获的鳟鱼可能会经历释放后死亡率升高。 在托管水体的情况下，合适的夏季热栖息地可能会限制鳟鱼。 不充分考虑温度的放养决策会导致死亡率，从而浪费资源，并且不满足渔业补充目标。从生物多样性的角度来看，鳟鱼可以是易损害淡水贻贝的强制宿主，以完成其生命周期，以便如果热条件排除鳟鱼，则可以消除软体动物的种群。 所有这些问题都是Kenauk Properties LP的重要性，这是一家旅游服装，拥有并经营加拿大最大的私人自然保护区。 他们担心如何更好地管理彩虹和布鲁克鳟鱼种群（例如，哪些捕鱼，用于栖息地修复的何处，如何优化孵化场操作）。 我们将进行多年的研究，以考虑鳟鱼的热生物学与Kenauk渔业资源管理的相关性。 目标包括1）。特征是Kenauk Reserve内十个捕鱼湖的热生物学和氧气状况； 2）。确定库存的鳟鱼如何使用不同热条件的湖泊，特别关注热栖息地和深度选择。 3）。确定外源性应激源（例如捕鱼）如何影响热选择，生理状态和库存鳟鱼的存活。 4）。确定影响库存鱼类热选择和存活的生物标志物。 5）。特征是Kinonge河中野鳟的季节性栖息地选择，运动和热生物学。 项目思想是使用共同制作模型开发的，该模型将在整个项目中扩展，以确保研究与Kenauk的相关性。 总的来说，这项研究将产生新的知识，这将帮助Kenauk在面对气候变化的情况下更好地管理其库存的休闲渔业资源，以便他们可以继续为客户提供卓越的垂钓机会，并保留剩余的野生鱼类种群。