Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Bruce R Ward"'
Autor:
Bruce R. Ward, Douglas C. Braun, John D. Reynolds, Donald McCubbing, Trevor D. Davies, Colin J. Bailey, Jonathan W. Moore
Key life‐cycle transitions, such as metamorphosis or migration, can be altered by a variety of external factors, such as climate variation, strong species interactions, and management intervention, or modulated by density dependence. Given that the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6c8216cc3458f7ffc2acbc50061496bb
http://summit.sfu.ca/item/18215
http://summit.sfu.ca/item/18215
Publikováno v:
Marine and Coastal Fisheries. 6:1-11
The population of anadromous steelhead Oncorhynchus mykiss in the Keogh River has been studied intensively, in part because of its pattern of declining recruitment, which is largely attributed to poor marine survival. Climate variability has changed
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cf1bcbc92dc1f565dafa2403488dcf72
https://doi.org/10.1080/19425120.2013.860065
https://doi.org/10.1080/19425120.2013.860065
Autor:
Aswea D. Porter, John Payne, Erin L. Rechisky, George D. Jackson, Jayson M. Semmens, Bruce R. Ward, Michael C. Melnychuk, Stephen P. Vincent, David Welch, Chris C. Wood
Publikováno v:
Proceedings of the National Academy of Sciences. 108:8708-8713
Many salmon populations in both the Pacific and Atlantic Oceans have experienced sharply decreasing returns and high ocean mortality in the past two decades, with some populations facing extirpation if current marine survival trends continue. Our ina
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::52dc3d34f84237749552a75770a621b4
https://doi.org/10.1073/pnas.1014044108
https://doi.org/10.1073/pnas.1014044108
Publikováno v:
Hydrobiologia. 582:289-299
Recent advances in micro-electronics make the study of the migration of even small marine animals (>12 cm) over many 1000s of kilometres a serious possibility. Important assumptions in long-term studies are that rates of tag loss caused by mortality
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2f388bf867ef963c79ae9e0009e9dfb7
https://doi.org/10.1007/s10750-006-0553-x
https://doi.org/10.1007/s10750-006-0553-x
Publikováno v:
Deep Sea Research Part II: Topical Studies in Oceanography. 51:897-909
Early ocean movements, residency, and survival of steelhead (Oncorhynchus mykiss) were examinedin Queen Charlotte Strait, a large (20 � 100 km 2 ) marine area separating Vancouver Islandfrom the mainland . The results provide the first detailed dat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ec363c29cbdfc46219a2795e24d8f37a
https://doi.org/10.1016/j.dsr2.2004.05.010
https://doi.org/10.1016/j.dsr2.2004.05.010
Publikováno v:
Oceanologica Acta (0399-1784) (Gauthier-villars/editions Elsevier), 2002-09, Vol. 25, N. 5, P. 243-253
For most of history, the ocean has remained nearly opaque to study, and it has been difficult to understand where salmon or other marine animals go or how they use the ocean. This greatly limits the ability of oceanographers and fisheries biologists
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a56c8d5f17fd8ce517da055c94f6a1dd
https://doi.org/10.1016/s0399-1784(02)01206-9
https://doi.org/10.1016/s0399-1784(02)01206-9
Publikováno v:
Canadian Journal of Fisheries and Aquatic Sciences. 57:225-270
Intraregional similarities and interregional differences in wild steelhead (Oncorhynchus mykiss) abundance trends over time throughout British Columbia were identified using catch-per-angler-day (CpAD) as an index of abundance. This index was calcula
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::75bcf98aa74a63bb6b8616ee296f73fc
https://doi.org/10.1139/f99-256
https://doi.org/10.1139/f99-256
Autor:
Bruce R Ward
Publikováno v:
Canadian Journal of Fisheries and Aquatic Sciences. 57:298-306
Survival and return of unharvested winter-run steelhead (Oncorhynchus mykiss) at the Keogh River, British Columbia, declined abruptly and remained persistently low after 1990. Adult returns averaged 1168 fish from 1976 to 1990 but were significantly
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7936e7d5705ad0b6e2d88dc369092fba
https://doi.org/10.1139/f99-243
https://doi.org/10.1139/f99-243
Autor:
Barry D. Smith, Bruce R Ward
Publikováno v:
Canadian Journal of Fisheries and Aquatic Sciences. 57:271-284
Wild adult steelhead (Oncorhynchus mykiss) abundance for rivers in British Columbia was indexed using catch-per-angler-day (CpAD) calculated from data obtained using an angler questionnaire. Mean annual CpAD for primarily winter-run steelhead in rive
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2697fc1114825164035a5f68a6fe8022
https://doi.org/10.1139/f99-254
https://doi.org/10.1139/f99-254
Autor:
Carl J. Walters, Bruce R Ward
Publikováno v:
Canadian Journal of Fisheries and Aquatic Sciences. 55:2533-2538
There have been profound declines in marine survival rates of steelhead trout (Oncorhynchus mykiss), coho salmon (O. kisutch), chinook salmon (O. tschawytscha), and Atlantic salmon (Salmo salar) since the mid-1980s, and these declines have been parti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e9a2c1b20e676d58b97428b0fe18fc8f
https://doi.org/10.1139/f98-203
https://doi.org/10.1139/f98-203