00000nam 2200000zi 4500 9.964498 CaOODSP 20260806081114 m o d f cr mn||||||||| 260723t20112011onca ob f000 0 eng d CaOODSP eng rda CaOODSP eng eng fre Fs97-4/2948E-PDF Fs97-4/2948E Cudmore, Becky C., 1972- author. Biological synopsis of tench (Tinca tinca) / by B. Cudmore and N.E. Mandrak. Burlington ON : Centre of Expertise for Aquatic Risk Assessment, Fisheries and Oceans Canada, 2011. ©2011 1 online resource (v, 20 pages) : illustrations (some colour). text txt rdacontent computer c rdamedia online resource cr rdacarrier Canadian manuscript report of fisheries and aquatic sciences, 0706-6473 ; 2948 Digitized edition from print [produced by Department of Fisheries and Oceans]. Includes bibliographical references (pages 13-17). "The Tench (Tinca tinca) is a large minnow species that has been introduced to Canada and is established in several locations in British Columbia and Quebec. Tench has been identified by Fisheries and Oceans Canada's Centre of Expertise for Aquatic Risk Assessment as being a species that may require a detailed level risk assessment. This biological synopsis, a required component of the risk assessment, includes a description, distribution, biology, natural history, human use, impacts and management practices of the Tench. The Tench, which is native to Europe, has been introduced into Africa, Asia, Australia, New Zealand and North and South America largely for aquaculture and sport fishing. Although it is established in many countries, its impact is either unknown or considered to be minor. However, when Tench occurs in high densities a cascade effect in the food chain may occur. Tench feeding on browsing gastropods causes an increase in periphyton growth on macrophyte surfaces. This increase reduces light penetration and nutrient supply to macrophytes, resulting in their decline. As Tench survives in degraded environments, it is unclear whether it impacts the water quality or simply inhabits a niche that other species cannot occupy"--Abstract, page iv. Includes abstracts in English and French. Tench. Tench Environmental aspects. Introduced fishes. Tanche. Tanche Aspect de l'environnement. Poissons introduits. Canada. Department of Fisheries and Oceans, issuing body. Centre of Expertise for Aquatic Risk Assessment (Canada), issuing body. Biological synopsis of Tench (Tinca tinca) / (CaOODSP)9.620129 Canadian manuscript report of fisheries and aquatic sciences ; 2948. (CaOODSP)9.505211 PDF 1,024 KB https://publications.gc.ca/collections/collection_2026/mpo-dfo/fs97-4/Fs97-4-2948-eng.pdf