Field experiment to test the effectiveness of LED lights for the behavioural guidance of imperiled American Eel during their downstream spawning migration

现场实验测试 LED 灯对濒危美洲鳗在下游产卵迁徙过程中行为引导的有效性

• 批准号: 568649-2021
• 负责人: Cooke, StevenSJ
• 金额: $ 4.23万
• 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=745188
• 关键词: Field; experiment; test; effectiveness; LED

American eels (Anguilla rostrata) are imperilled throughout much of their native range due in part to mortalities resulting from encounters with hydroelectric infrastructure during downstream pre-spawning migrations towards marine environments. Population declines have been drastic enough that eels are listed as "Endangered" by the Province of Ontario and on the IUCN Red List. Reducing, avoiding, or eliminating physical encounters with potentially harmful infrastructure such as turbines have been identified as key components of population protection strategies, particularly when such encounters can be reduced via behavioural guidance technologies (i.e., guiding fish away from risky areas towards safer areas) that will not interfere with hydroelectric generation. Notably, artificial lights have demonstrated some promise at deflecting night-migrating eels away from illuminated fields, creating an opportunity to concentrate eels towards safe passageways or for efficient collection and transport. However, many light guidance studies have been conducted under captive, laboratory settings that lack obvious scaling potential to real-world applications or relied on field deployments coupled with downstream recaptures of eels and inferential determination of their movement patterns and pathways around light fields. We have partnered with Ontario Power Generation (OPG) and Hydro Quebec (HQ) as well as government collaborators to conduct a management-scale study to evaluate the effectiveness of light for guiding eels. With funding from OPG and HQ, two floating light arrays (217m and 120m length) will be installed in the St. Lawrence River immediately upstream of both the Iroquois Water Control Dam (ON) and the Saint-Louis-de-Gonzague Bridge in the Beauharnois Canal (QC). We will formally evaluate and quantify the effectiveness of artificial light at achieving guidance outcomes for the management and conservation of American eel populations encountering hydroelectric infrastructure. The team has been working on pilot and feasibility studies for nearly a decade in preparation for this unique, one-time opportunity to generate data needed to inform the protection of imperiled eels.

美国鳗鱼（Anguilla Rostrata）在其大部分天然范围内都受到了损害，部分原因是在下游前向海洋环境的迁移迁移期间与水力发电基础设施相遇导致的死亡。人口下降已经足够剧烈，以至于鳗鱼被安大略省和IUCN红色名单列为“濒临灭绝”。减少，避免或消除与潜在有害的基础设施（如涡轮机）的身体相遇已被确定为人口保护策略的关键组成部分，尤其是当可以通过行为指导技术减少这种相遇（即，将鱼类远离风险的地区引导到更安全的地区）与Hydroelecteric Generation Intrefrection safe safe safer of ShieDrape Inderagience降低这种相遇。值得注意的是，人造灯已经表现出一些希望使夜间移民的鳗鱼远离照明田地，创造了将鳗鱼集中在安全通道或有效的收集和运输方面的机会。但是，在圈养的实验室环境中进行了许多光指导研究，这些研究缺乏明显的缩放潜力到现实世界中的应用，或依赖于现场部署，以及鳗鱼的下游重新捕获以及推断其在光场周围的运动模式和途径的确定。 我们已经与安大略省电力公司（OPG）和水力发电魁北克（HQ）以及政府合作者合作，进行了一项管理规模的研究，以评估指导鳗鱼的光的有效性。 借助OPG和总部的资金，将安装两个浮动灯阵列（217m和120m长），将安装在圣劳伦斯河中，即iroquois水控制大坝（ON）和Beauharnois Canal（QC）的Iroquois水控制大坝（ON）和Saint-Louis-De-Gonzagague桥的上游。 我们将正式评估和量化人造光的有效性，以实现遇到水力基础设施的美国鳗鱼种群的管理和保护。 该团队已经从事飞行员和可行性研究已有近十年的时间，为这一独特的一次性机会做准备，以生成为保护鳗鱼的保护所需的数据。