00000cam 2200000zi 4500 9.964784 CaOODSP 20260805102352 m o d f cr cn||||||||| 260805t20122012bccab ob f000 0 eng d CaOODSP eng rda CaOODSP eng eng fre n-cn-bc x7y0 Fs97-4/2984E-PDF Fs97-4/2984E Campbell, K. (Kelsey) author. Enumeration of juvenile and adult coho salmon at Black Creek, Vancouver Island, 2009 / by K. Campbell, P. Van Will, H. Stiff, D. Nagtegaal, E. Miyagi, and K. Duncan. Campbell River, British Columbia : Fisheries and Oceans Canada, Stock Assessment, Science Branch, Pacific Region, 2012. ©2012 1 online resource (viii, 185 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 ; 2984 ISSN of series should read: 1488-5387. Includes bibliographical references (page 15). "The counting fence on Black Creek was operated between April 6th and June 9th, 2009, to enumerate and tag Coho smolt out-migration. During the spring program, a total 68,448 smolts were captured, and sampled, of which 19,109 (28%) were successfully coded-wire tagged and released. A total of 19,016 smolts were estimated as effectively tagged after applying the short term tag loss rate of 0.65%. The out-migration was 96% age 1 smolts and 4% age 2s. The adult fence was operated from October 16th to November 16th, and spawn surveys were conducted from November 10th to December 7th. A total of 2,584 large adults (male to female ratio of 1:1.5) were enumerated, and 2,390 (~93%) were tagged for mark-recovery escapement estimation. 732 jacks were enumerated. CWTs were detected in 202 adults and 8 jacks, indicating a low (~8.5%) detection rate. The single-census Petersen mark-recapture population estimate for adult Coho was 3758±136 fish. The mode of the Bayesian population estimate for adult Coho escapement was 3,536, with a 95% highest probability density of 3343 – 3,788. Exploitation rate was assumed to be equivalent to the aggregated estimate derived elsewhere for Vancouver Island Georgia Strait Coho: 3.8%. Marine survival was estimated to be 3.73% for Black Creek adult Coho, a substantial increase from 2008 (0.76%) which was the lowest on record"--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 ; 2984. (CaOODSP)9.505211 PDF 2.03 MB https://publications.gc.ca/collections/collection_2026/mpo-dfo/fs97-4/Fs97-4-2984-eng.pdf