00000cam 2200000zi 4500 9.964278 CaOODSP 20260717091747 m o d f cr mn||||||||| 260717t19991999bccab ob f000 0 eng d CaOODSP eng rda CaOODSP eng eng fre n-cn-bc x5x9 Fs97-4/2501E-PDF Fs97-4/2501E Nagtegaal, D. A. (Dick A.) author. Adult chinook escapement assessment conducted on the Cowichan River during 1998 / D.A. Nagtegaal and E.W. Carter. Nanaimo, British Columbia : Fisheries and Oceans Canada, Science Branch, Pacific Region, Pacific Biological Station, 1999. ©1999 1 online resource (vii, 51 pages) : illustrations, maps. text txt rdacontent computer c rdamedia online resource cr rdacarrier Canadian manuscript report of fisheries and aquatic sciences, 0706-6473 ; 2501 Digitized edition from print [produced by Department of Fisheries and Oceans]. Includes bibliographical references (pages 12-13). "In 1998, the Stock Assessment Division, Pacific Biological Station, conducted a study of chinook salmon (Oncorhynchus tshawytscha) productivity in the Cowichan River. Major components of this ongoing study include: i) enumeration of spawners and total return, ii) estimation of Native food fish catch, iii) recording hatchery broodstock removals, iv) biological sampling and coded-wire tag (CWT) recovery data collection. A carcass mark-recapture study was conducted to augment the fence count. Total return of adult chinook to the Cowichan River was estimated to be 7,062 in 1998. The number of natural spawners was estimated to be 4,328. Carcass mark-recapture escapement estimate was determined to be 2,087 (95% CL; 1,956 - 2,218)"--Abstract, page vi. Includes abstracts in English and French. Chinook salmon British Columbia Cowichan River. Escapement (Fisheries) British Columbia Cowichan River. Chinook salmon Counting British Columbia Cowichan River. Chinook salmon Marking British Columbia Cowichan River. Hatchery fishes British Columbia Cowichan River. Saumon quinnat Colombie-Britannique Cowichan, Fleuve. Échappée (Pêches) Colombie-Britannique Cowichan, Fleuve. Saumon quinnat Comptage Colombie-Britannique Cowichan, Fleuve. Saumon quinnat Marquage Colombie-Britannique Cowichan, Fleuve. Poissons d'élevage Colombie-Britannique Cowichan, Fleuve. Canada. Department of Fisheries and Oceans, issuing body. Pacific Biological Station (1972- ), issuing body. Canadian manuscript report of fisheries and aquatic sciences ; 2501. (CaOODSP)9.505211 PDF 1.24 MB https://publications.gc.ca/collections/collection_2026/mpo-dfo/fs97-4/Fs97-4-2501-eng.pdf