Zobrazeno 1 - 10
of 66
pro vyhledávání: '"William G. Pearcy"'
Autor:
Jessica A. Miller, William G Pearcy
Publikováno v:
Northwestern Naturalist. 99:101-114
We sampled the water chemistry and otolith chemistry and structure of juvenile Cutthroat Trout collected in the Marys River and adults collected in the Willamette River to evaluate the potential to identify life-history variation in this population.
Autor:
William G. Pearcy, Peter A. Bisson, J. Richard Alldredge, Peter E. Smouse, Erik N. Merrill, Nancy J. Huntly, Kurt D. Fausch, Colin D. Levings, Courtland L. Smith, Robert J. Naiman, Dennis L. Scarnecchia, Chris C. Wood, Gregory T. Ruggerone, Bruce E. Rieman, James L. Congleton
Publikováno v:
ResearcherID
The Columbia Basin once supported a diversity of native fishes and large runs of anadromous salmonids that sustained substantial fisheries and cultural values. Extensive land conversion, watershed disruptions, and subsequent fishery declines have led
Publikováno v:
ICES Journal of Marine Science. 71:1717-1727
This study investigated the spatial distribution of juvenile North Pacific albacore (Thunnus alalunga) in relation to local environmental variability [i.e. sea surface temperature (SST)], and two large-scale indices of climate variability, [the Pacif
Publikováno v:
Journal of Oceanography. 59:515-535
The epipelagic and mesopelagic nekton communities of the northern California Current have been sampled somewhat continuously over the last four decades with bottom and pelagic trawls, small midwater trawls, and purse seines. We review the zoogeograph
Publikováno v:
Journal of Oceanography. 59:415-434
During the 1980s and 1990s, scientific research cruises were conducted in both the eastern and western boundary regions of the North Pacific Ocean. The main purpose of these cruises was to examine the abundance and distribution patterns of juvenile s
Autor:
Richard D. Brodeur, William G. Pearcy, Skip McKinnell, Vladimir Radchenko, Shogo Takagi, Kazuya Nagasawa
Publikováno v:
Progress in Oceanography. 43:365-397
During the 1980s and 1990s, scientific research cruises and commercial gillnet operations with scientific observers aboard were conducted throughout much of the Subarctic and Transition Zones of the North Pacific Ocean. These studies produced one of
Publikováno v:
Fisheries Oceanography. 5:1-20
Strong latitudinal gradients in species composition were revealed by two-way indicator species analysis (TWINSPAN) and detrended correspondence analysis (DCA) of 41 species of epipelagic fishes and squids in 513 gillnet collections by research vessel
Autor:
Roland H. Lamberson, J. Richard Alldredge, William G. Pearcy, Chris C. Wood, Charles Henny, Robert J. Naiman, Peter A. Bisson, Gregory T. Ruggerone, Nancy J. Huntly, Peter E. Smouse, Bruce E. Rieman, Colin D. Levings, James L. Congleton, Dennis L. Scarnecchia, Erik N. Merrill, David A. Beauchamp
Publikováno v:
Proceedings of the National Academy of Sciences of the United States of America. 109(52)
Well-functioning food webs are fundamental for sustaining rivers as ecosystems and maintaining associated aquatic and terrestrial communities. The current emphasis on restoring habitat structure—without explicitly considering food webs—has been l
Publikováno v:
Canadian Journal of Fisheries and Aquatic Sciences. 50:2608-2625
Abundances of Pacific pomfret (Brama japonica), an epipelagic fish of the North Pacific Ocean, were estimated from gillnet catches during the summers of 1978–1989. Two size modes were common: small pomfret
Publikováno v:
Canadian Journal of Fisheries and Aquatic Sciences. 49:1670-1685
The overall food consumption by juvenile coho (Oncorhychus kisutch) and chinook salmon (O. tshawytscha) along the continental shelf off Washington and Oregon was estimated for the summer months of 1981–84 using both a direct field and indirect bioe