00000nam 2200000zi 4500 9.919981 CaOODSP 20230217075650 m o d f cr mn||||||||| 230210t20232023nscb ob f000 0 eng d 9780660475332 CaOODSP eng rda CaOODSP eng eng fre n-cn-ns y2y2 Fs97-6/3527E-PDF Wringe, Brendan F., author. The use of freshwater environmental DNA (eDNA) for rapid and cost-effective detection of native and non-native salmonid species in Cape Breton / by Brendan F. Wringe, Nicholas W. Jeffery, Francis LeBlanc, Royce Steeves, Darek T.R. Moreau, Dustin Raab, David Hardie and Nellie Gagne. Dartmouth, Nova Scotia : Fisheries and Oceans Canada Science Branch, Maritimes Region, Population Ecology Division, Bedford Institute of Oceanography, 2023. ©2023 1 online resource (vii, 28 pages) : colour maps. text txt rdacontent computer c rdamedia online resource cr rdacarrier Canadian technical report of fisheries and aquatic sciences, 1488-5379 ; 3527 Includes bibliographical references (pages 9-12). "The recovery of endangered Atlantic Salmon (Salmo salar) populations is hampered by multiple stressors, including competition with non-native salmonids. Native Atlantic Salmon of the Eastern Cape Breton Designatable Unit (DU) face competition from introduced Brown Trout (Salmo trutta) and introduced and aquaculture escapee Rainbow Trout (Oncorhynchus mykiss). The degree to which this competition impacts the DU as a whole largely depends on the extent of the spatial and temporal co-occurrence of salmon populations with either, or both, non-native trout species. To refine our understanding of the overlap between Eastern Cape Breton Atlantic Salmon and introduced Brown and Rainbow trout, we undertook a survey of rivers using environmental DNA (eDNA). The utility of eDNA for the detection of native and introduced species has been well proven. Rivers were selected for geographic coverage of Bras d'Or Lake and based on current or historic presence of Atlantic Salmon, Rainbow, and Brown trout. Atlantic Salmon DNA was detected in 11 of 15 rivers sampled. Brown Trout DNA was detected in 10 rivers, and co-occurred with Atlantic Salmon in eight of these. Rainbow Trout DNA was detected in two sampled rivers, and co-occurred with both Brown Trout and Atlantic Salmon DNA in both sites. These results suggest that co-occurrence of Atlantic Salmon with introduced salmonid competitors may be widespread, and thus could have implications for the recovery of Eastern Cape Breton Designatable Unit Atlantic Salmon"--Abstract, page vi. Includes abstracts in English and French. Atlantic salmon Detection Nova Scotia Cape Breton Island. Rainbow trout Detection Nova Scotia Cape Breton Island. Brown trout Detection Nova Scotia Cape Breton Island. Native fishes Detection Nova Scotia Cape Breton Island. Introduced fishes Detection Nova Scotia Cape Breton Island. DNA fingerprinting of animals Nova Scotia Cape Breton Island. Saumon atlantique Détection Nouvelle-Écosse Cap-Breton, Île du. Truite arc-en-ciel Détection Nouvelle-Écosse Cap-Breton, Île du. Truite brune Détection Nouvelle-Écosse Cap-Breton, Île du. Poissons introduits Détection Nouvelle-Écosse Cap-Breton, Île du. Animaux Empreintes génétiques Nouvelle-Écosse Cap-Breton, Île du. Canada. Department of Fisheries and Oceans, issuing body. Bedford Institute of Oceanography, issuing body. Canadian technical report of fisheries and aquatic sciences ; 3527. (CaOODSP)9.504449 PDF 964 KB https://publications.gc.ca/collections/collection_2023/mpo-dfo/Fs97-6-3527-eng.pdf