00000cam 2200000zi 4500 9.964836 CaOODSP 20260806071945 m o d f cr cn||||||||| 260805t20122012bccab ob f000 0 eng d CaOODSP eng rda CaOODSP eng eng fre n-cn-bc y0y0 Fs97-4/3003E-PDF Fs97-4/3003E Stanton, Lily, author. Exploratory surveys and directed studies of Rocky Mountain ridged mussel (Gonidea angulata Lea, 1839) in British Columbia / by L. Stanton, R. Lauzier, S. MacConnachie, L. Nield, S. Pollard, J. Heron, and S. Davies. Nanaimo, British Columbia : Fisheries and Oceans Canada, Science Branch, Pacific Region, Pacific Biological Station, 2012. ©2012 1 online resource (viii, 63 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 ; 3003 ISSN of series should read: 1488-5387. Includes bibliographical references (pages 27-32). "Exploratory surveys completed collaboratively by Fisheries and Oceans Canada, the British Columbia Ministry of Environment and the British Columbia Ministry of Forests, Lands and Natural Resource Operations from 2008-2011 verified the current distribution of Gonidea angulata in British Columbia. Live mussels were only observed in the Okanagan River Basin with five main aggregations identified in Okanagan Lake. Quantitative surveys conducted at Dog Beach, Summerland on Okanagan Lake estimated a current population of 4,000 individuals, likely representing the largest population of G. angulata in Canada and a potential site for future long term monitoring. Overwintering and density by depth surveys identified the proportion of mussels within the shallow littoral zone at risk of desiccation and increased predation. Results of these surveys will be incorporated into the Okanagan Fish and Water Management Tools System. Preliminary life history studies revealed mature glochidia are released within conglutinates at water temperatures above 15°C in early June and provides initial correlative information on fish species present in the area during glochidial release that may potentially serve as hosts including: Prickly Sculpin (Cottus asper), suckers (Catostomus spp.), Northern Pikeminnow (Ptychocheilus oregonensis) and Redside Shiner (Richardsonius balteatus)"--Abstract, page vii. Includes abstracts in English and French. Unionidae British Columbia. Invertebrate surveys British Columbia. Unionidae British Columbia Geographical distribution. Freshwater invertebrate populations British Columbia. Unionidae Life cycles British Columbia. Unionidés Colombie-Britannique. Invertébrés Inventaires Colombie-Britannique. Unionidés Colombie-Britannique Distribution géographique. Invertébrés d'eau douce Populations Colombie-Britannique. Unionidés Cycles biologiques Colombie-Britannique. Canada. Department of Fisheries and Oceans, issuing body. Pacific Biological Station (1972- ), issuing body. Exploratory surveys and directed studies of Rocky Mountain ridged mussel (Gonidea angulata Lea, 1839) in British Columbia / (CaOODSP)9.620443 Canadian manuscript report of fisheries and aquatic sciences, 1488-5387 ; 3003. (CaOODSP)9.505211 PDF 2.93 MB https://publications.gc.ca/collections/collection_2026/mpo-dfo/fs97-4/Fs97-4-3003-eng.pdf