Výsledky vyhledávání - "Nancy D. Davis"

Responses of a pelagic fish community to reduced fishing pressure in the central Bering Sea

Autor: Nancy D. Davis, Masa-aki Fukuwaka

Publikováno v: Marine Ecology Progress Series. 673:183-192

Ecosystem-based fishery management (EBFM) requires minimizing the risk of irreversible change to a natural assemblage of species. Because pelagic fisheries modify the biotic community rather than the physical environment and often target migratory sp

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2c3d8034e8fcdbb2884434af1b1471ab
https://doi.org/10.3354/meps13800

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Activity of the pituitary–gonadal axis is increased prior to the onset of spawning migration of chum salmon

Autor: Jon T. Dickey, Shunpei Sato, Aya Jodo, Masatoshi Ban, Hironori Ando, Masa-aki Fukuwaka, Penny Swanson, Hiroshi Katsumata, Akihisa Urano, Tomonori Azumaya, Takeshi Onuma, Weiwei Hu, Nancy D. Davis, Keita Makino

Publikováno v: Journal of Experimental Biology. 212:56-70

SUMMARY The activity of the pituitary–gonadal axis (PG axis) in pre-migratory and homing chum salmon was examined because endocrine mechanisms underlying the onset of spawning migration remain unknown. Pre-migratory fish were caught in the central

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::40eb5a5a430e08b96c7c784694dece9a
https://doi.org/10.1242/jeb.021352

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Interannual and Spatial Feeding Patterns of Hatchery and Wild Juvenile Pink Salmon in the Gulf of Alaska in Years of Low and High Survival

Autor: Jennifer L. Boldt, John Piccolo, Nancy D. Davis, Lewis J. Haldorson, Jamal H. Moss, Robert V. Walker, Katherine W. Myers, Janet L. Armstrong, David A. Beauchamp

Publikováno v: Transactions of the American Fisheries Society. 137:1299-1316

To improve understanding of the mechanisms affecting growth and survival, we evaluated the summer diets and feeding patterns (prey composition, energy density, and stomach fullness) of hatchery and wild juvenile pink salmon Oncorhynchus gorbuscha in

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c97e4f844249613c66e504a043b7149d
https://doi.org/10.1577/t07-196.1

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Bias in size composition of chum salmon (Oncorhynchus keta) caught by a gillnet with a geometric series of mesh sizes, and its correction using gear intercalibration

Autor: Nancy D. Davis, Masa-aki Fukuwaka, Tomonori Azumaya, Toru Nagasawa

Publikováno v: ICES Journal of Marine Science. 65:930-936

Fukuwaka, M., Azumaya, T., Davis, N. D., and Nagasawa, T. 2008. Bias in size composition of chum salmon (Oncorhynchus keta) caught by a gillnet with a geometric series of mesh sizes, and its correction using gear intercalibration. – ICES Journal of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ac6e5df5e6638a3f7595d52f4595a551
https://doi.org/10.1093/icesjms/fsn076

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Distribution, size, and interannual, seasonal and diel food habits of northern Gulf of Alaska juvenile pink salmon, Oncorhynchus gorbuscha

Autor: Katherine W. Myers, David A. Beauchamp, Jennifer L. Boldt, Alison D. Cross, Lewis J. Haldorson, Nancy D. Davis, Janet L. Armstrong, Robert V. Walker, Jamal H. Moss

Publikováno v: Deep Sea Research Part II: Topical Studies in Oceanography. 52:247-265

An integral part of assessing the northern Gulf of Alaska (GOA) ecosystem is the analysis of the food habits and feeding patterns of abundant zooplanktivorous fish. Juvenile pink salmon Oncorhynchus gorbuscha are highly abundant zooplanktivores, and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::259eea32d9fc7d7b5c4eca74fdf41097
https://doi.org/10.1016/j.dsr2.2004.09.019

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Consumption demand of juvenile pink salmon in Prince William Sound and the coastal Gulf of Alaska in relation to prey biomass

Autor: Jennifer L. Boldt, Nancy D. Davis, Katherine W. Myers, Alison D. Cross, David A. Beauchamp, Jamal H. Moss, Robert V. Walker, Mikhail Blikshteyn, Janet L. Armstrong, Lewis J. Haldorson

Publikováno v: Deep Sea Research Part II: Topical Studies in Oceanography. 52:347-370

Prince William Sound hatcheries release over 600 million pink salmon ( Oncorhynchus gorbuscha ) fry each year. The effect of the additional consumption demand by hatchery fish on prey biomass in Prince William Sound and the coastal Gulf of Alaska is

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::00d1605145f9c36c5025372da5b17f11
https://doi.org/10.1016/j.dsr2.2004.09.021

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Interannual variability in stock abundance and body size of Pacific salmon in the central Bering Sea

Autor: M Fukuwaka, Nancy D. Davis, Tomonori Azumaya, Yukimasa Ishida

Publikováno v: Progress in Oceanography. 55:223-234

Variability in catch-per-unit-effort (CPUE) and mean body size was examined for pink, chum and sockeye salmon collected with research gillnets in the central Bering Sea in July from 1972 to 2000. The CPUEs for all three species showed significant inc

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2566b3cf23969bac274790fda7831c18
https://doi.org/10.1016/s0079-6611(02)00080-0

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