Acoustic telemetry infrastructure for tracking migratory fish species at risk

用于追踪处于危险中的洄游鱼类物种的声学遥测基础设施

• 批准号: RTI-2021-00346
• 负责人: Linnansaari, Tommi
• 金额: $ 10.79万
• 依托单位: University of New Brunswick
• 依托单位国家: 加拿大
• 项目类别: Research Tools and Instruments
• 财政年份: 2020
• 资助国家: 加拿大
• 起止时间: 2020-01-01 至 2021-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=718548
• 关键词: Acoustic; telemetry; infrastructure; tracking; migratory

This proposal describes a purchase of acoustic telemetry equipment to support significant research activities on migratory fish species in the Linnansaari research laboratory at the University of New Brunswick. Overall, 50 passive acoustic receivers and necessary deployment and maintenance parts will be acquired. Three different varieties of passive receivers are being purchased because of the range of freshwater to ocean conditions necessitating different features onboard the receivers; the receivers range from basic data storage functions to Bluetooth data transmission and automated “pop-off” release systems. Additionally, an active tracking receiver unit will be acquired to facilitate fine-scale movement and behaviour studies. The acoustic tracking equipment will be used to support six ongoing, two starting, and one planned telemetry projects wherein minimally 11 highly qualified personnel, including three members of First Nations, are trained as aquatic telemetry specialists. The supported projects study the migration ecology of three sea-run and one landlocked Atlantic salmon populations, two spatially distinct American eel populations, and a population of shortnose sturgeon, striped bass, and sea-run brook trout, in a timeframe between 2021-25. All but one of the studied migratory fish populations are already considered for listing with a conservation status by the Committee on the Status of Endangered Wildlife in Canada, or are in severe decline; one of the studied fish populations is exponentially increasing, raising questions of interactive predatory effects on the other co-occurring fish populations. Depending on the studied fish population, the objective of the acoustic telemetry studies is to either i) better understand the causes for the continued decline (e.g., mortality rates, reasons and locations), ii) identify significant habitat areas for conservation or management action, iii) confirm the efficiency of current mitigation measures (e.g., efficiency of fish passage structures in hydropower context) or iv) understand the effect of population recovery of a fish predator on other migratory fish populations inhabiting the specific river system. All fish populations studied by using the proposed equipment are socio-economically important species that have historically attracted significant fishing tourism, and thus, economic spin-off in Atlantic Canada. Understanding the causes of the current declines or effectiveness of mitigation will help fisheries managers better protect these populations for future Canadian generations. In addition, all these species are of traditional and cultural importance and are significant for food and ceremonial purposes for local Mi'kmaq and Wolastoqey communities who are also active participants in the field research of this proposal.

该提案描述了购买声学遥测设备，以支持新不伦瑞克大学 Linnansaari 研究实验室的重要洄游鱼类研究活动。总体而言，将采购 50 个无源声学接收器以及必要的部署和维护部件。由于淡水到海洋条件的不同，接收器需要具有不同的功能，因此正在购买无源接收器；接收器的范围从基本数据存储功能到蓝牙数据传输和自动“弹出”释放系统。将购买接收器单元以促进精细尺度的运动和行为研究。 声学跟踪设备将用于支持 6 个正在进行的遥测项目、2 个正在启动的遥测项目和 1 个计划中的遥测项目，因此至少有 11 名高素质人员（包括三名原住民成员）接受了水生遥测专家的培训，所支持的项目研究了三个物种的迁徙生态。 2021-25 年间，海游和一个内陆大西洋鲑鱼种群、两个空间上不同的美国鳗鱼种群，以及短鼻鲟、条纹鲈鱼和海游溪鳟鱼种群。所研究的一种洄游鱼类种群已被加拿大濒危野生动物状况委员会考虑列入保护状态，或者所研究的鱼类种群之一正在呈指数级增长，引发了互动掠夺效应的问题；根据所研究的鱼类种群，声学遥测研究的目的是 i) 更好地了解持续下降的原因（例如死亡率、原因和位置），ii) 确定重要的栖息地保护区或管理行动，iii) 确认当前缓解措施的效率（例如，水电背景下鱼类通道结构的效率）或 iv) 了解鱼类捕食者种群恢复对居住在特定河流系统中的其他洄游鱼类种群的影响。 使用拟议设备研究的所有鱼类种群都是具有重要社会经济意义的物种，历史上吸引了大量的渔业旅游业，因此，了解加拿大大西洋地区当前下降的原因或缓解措施的有效性将有助于渔业管理者更好地进行。此外，所有这些物种都具有传统和文化重要性，对于当地 Mi'kmaq 和 Wolastoqey 社区的食物和仪式意义重大，他们也是本提案实地研究的积极参与者。