00000cam 2200000zi 4500 9.964791 CaOODSP 20260805112748 m o d f cr cn||||||||| 260805t20132013bccab ob f000 0 eng d CaOODSP eng rda CaOODSP eng eng fre n-cn-bc x7y1 Fs97-4/2985E-PDF Fs97-4/2985E Campbell, K. (Kelsey) author. Enumeration of juvenile and adult coho salmon at Black Creek, Vancouver Island, 2010 / by K. Campbell, P. Van Will, H.W. Stiff, D. Nagtegaal, E. Miyagi, and K. Duncan. Campbell River, British Columbia : Fisheries and Oceans Canada, Stock Assessment, Science Branch, Pacific Region, 2013. ©2013 1 online resource (viii, 160 pages) : colour illustrations, colour maps. text txt rdacontent computer c rdamedia online resource cr rdacarrier Canadian manuscript report of fisheries and aquatic sciences, 0706-6473 ; 2985 ISSN of series should read: 1488-5387. Includes bibliographical references (pages 13-14). "The juvenile counting fence on Black Creek was in operation between April 10th and June 9th, 2010, to enumerate and tag juvenile Coho smolt out-migration. During the spring program, a total of 22, 754 smolts were captured and sampled. Of the captured, 6,893 (30%) smolts were successfully coded-wire tagged and released. However, after factoring for short-term tag loss of 0.5%, 6,852 were effectively tagged. The out-migration was composed of 84% age 1.0 smolts and 16% age 2.0 smolts. The adult fence was in operation from October 10th to November 12th, and spawn surveys were conducted from November 8th to December 7th. A total of 3,651 large adult Coho were enumerated through the fence (male to female ratios of 1:1.2) of which 2,212 were tagged for mark-recovery escapement estimation. 1,062 jacks were enumerated. Coded-wire tags were detected in 167 adults and 73 jacks, indicating a low detection rate (8.2%). The single-census Petersen mark-recapture population estimate for adult Coho was 3,952 ±184 fish. The mode of the Bayesian population estimate for adult Coho escapement was 4,050, with a 95% highest probability density of 3,758 – 4,444. Exploitation rate was assumed to be equivalent to the aggregated estimate derived elsewhere for Vancouver Island Georgia Strait Coho: 6.46%. Marine survival was estimated to be 1.89% for Black Creek adult Coho, a decrease from 2009 (3.40%)"--Abstract, page vii. Includes abstracts in English and French. Coho salmon British Columbia Black Creek (Comox-Strathcona) Escapement (Fisheries) British Columbia Black Creek (Comox-Strathcona) Coho salmon Infancy British Columbia Black Creek (Comox-Strathcona) Coho salmon Counting British Columbia Black Creek (Comox-Strathcona) Coho salmon Marking British Columbia Black Creek (Comox-Strathcona) Saumon coho Colombie-Britannique Black, Fleuve (Comox-Strathcona) Échappée (Pêches) Colombie-Britannique Black, Fleuve (Comox-Strathcona) Saumoneau coho Colombie-Britannique Black, Fleuve (Comox-Strathcona) Saumon coho Comptage Colombie-Britannique Black, Fleuve (Comox-Strathcona) Saumon coho Marquage Colombie-Britannique Black, Fleuve (Comox-Strathcona) Canada. Department of Fisheries and Oceans, issuing body. Canada. Department of Fisheries and Oceans. Pacific Region. Stock Assessment Division, issuing body. Canadian manuscript report of fisheries and aquatic sciences, 1488-5387 ; 2985. (CaOODSP)9.505211 PDF 4.41 MB https://publications.gc.ca/collections/collection_2026/mpo-dfo/fs97-4/Fs97-4-2985-eng.pdf