00000nam 2200000zi 4500 9.919327 CaOODSP 20230127135015 m o d f cr mn||||||||| 230120t20232023oncab ob f000 0 eng d 9780660471976 CaOODSP eng rda CaOODSP eng eng fre n-cn-on y2y2 Fs97-13/1363E-PDF LeBaron, Anita, author. Targeted surveys for channel darter and round goby along the Trent, Moira, Salmon, and Napanee rivers in 2021 / by Anita LeBaron and Scott M. Reid. Burlington, ON : Ontario and Prairie Region, Fisheries and Oceans Canada, 2023. ©2023 1 online resource (vii, 31 pages) : illustrations (some colour), colour maps. text txt rdacontent computer c rdamedia online resource cr rdacarrier Canadian data report of fisheries and aquatic sciences, 1488-5395 ; 1363 Includes bibliographical references (pages 7-8). "The spread of the invasive Round Goby (Neogobius melanostomus) was assessed as a significant threat to those populations of Channel Darter (Percina copelandi) identified by the Committee on the Status of Endangered Wildlife in Canada as the Lake Ontario designatable unit. However, expert-based threat assessments require validation through field research and monitoring. In 2021, electrofishing surveys to detect and monitor the two species were undertaken along four Lake Ontario tributaries: the Trent River (9 sites), Moira River (1 site), Salmon River (15 sites), and Napanee River (6 sites). Surveys were also undertaken at two sites along Depot Creek, a Napanee River tributary. A total of 60 Channel Darter and 238 Round Goby were electrofished from all sites. Channel Darter was detected at five Trent River sites and six Salmon River sites; Round Goby was detected at nine Trent River sites and one Napanee River site. Round Goby co-occurred with Channel Darter at five sites (Trent River). Angling surveys to detect Round Goby were also undertaken across five waterbodies representing potential baitfish introduction sites within the Trent River, Salmon River, and Napanee River watersheds: Crowe Lake (25 sites), Beaver Lake (24 sites), Varty Lake (24 sites), Rylstone Lake (10 sites), and Crowe River (6 sites), as well as 8 reference sites on the Trent River. Round Goby was only detected at reference sites"--Abstract, page vi. Includes abstracts in English and French. Channel darter Ontario. Neogobius Ontario. Introduced fishes Ontario. Fish surveys Ontario. Fouille-roche gris Ontario. Neogobius Ontario. Poissons introduits Ontario. Inventaires ichtyologiques Ontario. Canada. Department of Fisheries and Oceans, issuing body. Canada. Department of Fisheries and Oceans. Ontario and Prairie Region, issuing body. Canadian data report of fisheries and aquatic sciences ; 1363. (CaOODSP)9.505124 PDF 1.38 MB https://publications.gc.ca/collections/collection_2023/mpo-dfo/Fs97-13-1363-eng.pdf