00000nam 2200000zi 4500 9.951641 CaOODSP 20250605131049 m o d f cr mn||||||||| 250530e198408##bccab ob f000 0 eng d CaOODSP eng rda CaOODSP eng eng fre n-cn-bc x4x8 Fs97-4/1782E-PDF Fs97-4/1782E Shepherd, Bruce G. (Bruce Gordon), 1948- author. Predicted impacts of altered water temperature regime on Glendale Creek pink (Oncorhynchus gorbuscha) fry / by B.G. Shepherd. Vancouver, B.C. : Salmonid Enhancement Program, Department of Fisheries and Oceans, August 1984. ©1984 1 online resource (v, 55 pages) : illustrations, maps. text txt rdacontent computer c rdamedia online resource cr rdacarrier Canadian manuscript report of fisheries and aquatic sciences, 0706-6473 ; 1782 Digitized edition from print [produced by Department of Fisheries and Oceans]. Includes bibliographical references (pages 36-37). "As part of the feasibility studies associated with the development of an enhancement program for the Knight Inlet region of British Columbia, the potential problem of premature emigration of pink fry from a proposed spawning channel was addressed. This problem was tentatively evaluated using onsite temperature and fry migration data collected over the 1982-83 incubation and emergence period. Water temperature monitoring studies confirmed that Tom Browne Creek surface water was consistently warmer by up to 4.5° than Glendale Creek water. Subgravel water temperatures were found to track surface water temperatures in a buffered fashion, with a diurnal lag of 2-4 hr. Subgravel temperatures could be as much as 4°C different than surface temperatures, but generally were 0.5-2.0°C colder May through September and 0.5-1.0°C warmer November through February. Juvenile trapping in the spring of 1983 indicated that pink and chum fry emigrated from the Tom Browne section 2-3 wk earlier than from the Glendale section; no significant differences or trends in fry length, weight, or condition were noted between systems or over time. Other species of salmon captured and sampled included coho fry and smolts and, sockeye smolts. There were also incidental catches of juvenile and resident cutthroat and rainbow/steelhead trout, Dolly Varden fry, sticklebacks, cottids, and lamprey larvae and adults. Comparison of the subgravel temperature data and the fry migration data indicated that pink fry incubated in Tom Browne water could emigrate 3-7 wk in advance of pink fry incubated in Glendale water. A review of the available literature indicated that this degree of advancement should have a nil or perhaps even beneficial effect on survival. This conclusion is tempered by a call for more detailed studies to fill data gaps"--Abstract, page iv. Includes abstracts in English and French. Pink salmon Effect of temperature on British Columbia. Pink salmon Infancy British Columbia. Pink salmon Migration British Columbia. Saumon rose Effets de la température sur Colombie-Britannique. Saumoneau rose Colombie-Britannique. Saumon rose Migration Colombie-Britannique. Canada. Department of Fisheries and Oceans, issuing body. Salmonid Enhancement Program (Canada), issuing body. Canadian manuscript report of fisheries and aquatic sciences ; 1782. (CaOODSP)9.505211 PDF 2.66 MB https://publications.gc.ca/collections/collection_2025/mpo-dfo/fs97-4/Fs97-4-1782-eng.pdf