Zobrazeno 1 - 10 of 187 pro vyhledávání: '"J S MacDonald"'
1
The Efficacy of Reservoir Flow Regulation for Cooling Migration Temperature for Sockeye Salmon in the Nechako River Watershed of British Columbia
Autor: D. A. Patterson, J. Morrison, J. S. Macdonald
Publikováno v: North American Journal of Fisheries Management. 32:415-427
Since the early 1980s, a water temperature management program has been in existence on the Nechako River system in central British Columbia, Canada. The program releases water based on anticipated meteorological conditions in an attempt to prevent te
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5222b83b0051fdc285077e11c395c536
https://doi.org/10.1080/02755947.2012.675946
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2
Cold shock and fish
Autor: Michael R. Donaldson, David A. Patterson, Steven J. Cooke, J. S. Macdonald
Publikováno v: Journal of Fish Biology. 73:1491-1530
Rapid decreases in water temperature may result in a number of physiological, behavioural and fitness consequences for fishes termed ‘cold shock’. Cold-shock stress occurs when a fish has been acclimated to a specific water temperature or range o
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ee68a6914f966f9679fc2b582673c97e
https://doi.org/10.1111/j.1095-8649.2008.02061.x
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3
The Influence of Water Temperature on Time to Surface for Adult Sockeye Salmon Carcasses and the Limitations in Estimating Salmon Carcasses in the Fraser River, British Columbia
Autor: J. A. Hills, K. M. Skibo, J. S. Macdonald, D. A. Patterson, D. P. Barnes
Publikováno v: North American Journal of Fisheries Management. 27:878-884
We determined the postmortem specific gravity and examined the relationship between water temperature and the time to surface for carcasses of adult sockeye salmon Oncorhynchus nerka. These results, in conjunction with other biophysical factors, were
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::513e7078ae887c4b2353c1d6438a9e56
https://doi.org/10.1577/m06-098.1
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4
Effects of River Discharge, Temperature, and Future Climates on Energetics and Mortality of Adult Migrating Fraser River Sockeye Salmon
Autor: J. Morrison, M. J. MacNutt, Michael C. Healey, M. G. G. Foreman, Scott G. Hinch, Anthony P. Farrell, Peter S. Rand, J. S. Macdonald, David A. Higgs
Publikováno v: Transactions of the American Fisheries Society. 135:655-667
We evaluated the effects of past and future trends in temperature and discharge in the Fraser River on the migratory performance of the early Stuart population of sockeye salmon Oncorhynchus nerka. Fish of lower condition exhibited disproportionately
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ccd2ee9d8810aa4216c30e8afdd8baf8
https://doi.org/10.1577/t05-023.1
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5
Metabolic rates and swimming performance of adult Fraser River sockeye salmon (Oncorhynchus nerka) after a controlled infection withParvicapsula minibicornis
Autor: David A. Patterson, S Rm Jones, Louise Kuchel, Scott G. Hinch, J. S. Macdonald, Andrew G. Lotto, Glenn N. Wagner, Anthony P. Farrell, G. Van Der Kraak, Steven J. Cooke, Michael C. Healey, Karl K. English, M Shrimpton, S. Larsson
Publikováno v: Canadian Journal of Fisheries and Aquatic Sciences. 62:2124-2133
Adult sockeye salmon (Oncorhynchus nerka) acquire infections with the myxosporean kidney parasite Parvicapsula minibicornis during their spawning migration in the Fraser River, British Columbia. Controlled infections with this parasite in wild sockey
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6cc22f9aec1db51a6700b1d8d2d76d41
https://doi.org/10.1139/f05-126
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6
Maternal influence and population differences in activities of mitochondrial and glycolytic enzymes in emergent sockeye salmon (Oncorhynchus nerka) fry
Autor: David A. Patterson, Anthony P. Farrell, H Guderley, P Bouchard, J. S. Macdonald
Publikováno v: Canadian Journal of Fisheries and Aquatic Sciences. 61:1225-1234
Full-sib groups were created from two reproductively isolated sockeye salmon (Oncorhynchus nerka) populations, Weaver and Gates creeks, to test the hypotheses that prefed, emergent fry from different populations have different energetic capacities as
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8543f6789fb885a1aae313084dbeddfe
https://doi.org/10.1139/f04-076
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7
The effect of exercise and captivity on energy partitioning, reproductive maturation and fertilization success in adult sockeye salmon
Autor: Anthony P. Farrell, J. S. Macdonald, Michael C. Healey, Scott G. Hinch, David A. Patterson
Publikováno v: Journal of Fish Biology. 64:1039-1059
Releasing a population of adult Fraser River sockeye salmon Oncorhynchus nerka from an energetically more expensive non-feeding natural migration (1089 km, natal groups) and allowing them to sexually mature in either a moderate flow (captive exercise
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::eb9a244c3a10c3323e579debf0cc4f65
https://doi.org/10.1111/j.1095-8649.2004.0370.x
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8
Stream temperatures in two shaded reaches below cutblocks and logging roads: downstream cooling linked to subsurface hydrology
Autor: R D Moore, A Story, J S Macdonald
Publikováno v: Canadian Journal of Forest Research. 33:1383-1396
This study examined water temperature patterns and their physical controls for two small, clearing-heated streams in shaded reaches downstream of all forestry activity. Field observations were made during July–August 2000 in the central interior of
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::40e810bbc0bf6686266d08b7972db910
https://doi.org/10.1139/x03-087
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9
The effects of forest harvesting and best management practices on streamflow and suspended sediment concentrations during snowmelt in headwater streams in sub-boreal forests of British Columbia, Canada
Autor: J S Macdonald, H E Herunter, E A MacIsaac, P G Beaudry
Publikováno v: Canadian Journal of Forest Research. 33:1397-1407
This paper examines suspended sediment concentration and stream discharge during freshet in three small sub-boreal forest streams (15 cm diameter at breast height (DBH) for pine and >20 cm for spruce), while all stems
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4b021b52cd8c04c6b731b788d945bbb7
https://doi.org/10.1139/x03-110
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10
The effect of variable-retention riparian buffer zones on water temperatures in small headwater streams in sub-boreal forest ecosystems of British Columbia
Autor: J S Macdonald, H E Herunter, E A MacIsaac
Publikováno v: Canadian Journal of Forest Research. 33:1371-1382
Stream temperature impacts resulting from forest harvesting in riparian areas have been documented in a number of locations in North America. As part of the Stuart–Takla Fisheries–Forestry Interaction Project, we have investigated the influence of
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3f4813bd0cdd6e4f6e6e0336b0466434
https://doi.org/10.1139/x03-015
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