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Food habits, dietary overlap and gastric evacuation rates of rockfishes (genus Sebastes)

Creator:: Brodeur, Richard D.
Abstract:: Euphausiids constituted the major food of five co-occuring species of rockfishes (Sebastes spp.). Copepods, decapods, cephalopods, amphipods, fishes and other pelagic prey were also consumed but were less important to the overall diet. Two species, S. flavidus and S. diploproa, were relatively euryphagous, utilizing a high number of prey taxa....
Resource Type:: Masters Thesis
Full Text:: . Bill Pearcy, George Boehlert, Carl Bond and Vern Weber for their cooperation during the study and

Relationships between oceanographic factors and the distribution of juvenile coho salmon (Oncorhynchus kisutch) off Oregon and Washington, 1982-1983

Creator:: Chung, Alton W.
Abstract:: Juvenile coho salmon (101-400 mm) were sampled by purse seine off the Pacific Coast from Waatch Point, Washington to Four Mile Creek, Oregon, out to 30 mi offshore, during the months of May, June, and September in 1982 and 1983. Sea surface temperature, surface salinity, surface chlorophyll-a concentration, and Secchi...
Resource Type:: Masters Thesis
Full Text:: warmest aloha goes to my advisor and mentor, Bill Pearcy, for his moral support, patience, understanding

Reproduction, growth, feeding, and distribution of the mesopelagic fish Tactostoma macropus

Creator:: Fisher, Joseph P.
Resource Type:: Masters Thesis
Full Text:: especially Bill Pearcy for his guidance and help with all aspects of the thesis project; Carl Bond and

Feeding selectivity of Dover sole (Microstomus pacificus Lockington) off Oregon

Creator:: Gabriel, Wendy Louise
Resource Type:: Masters Thesis
Full Text:: Dr. William Pearcy, my advisor, for his guidance and invaluable suggestions throughout this project

Relationships between lower trophic levels and hydrography during an upwelling season off Oregon

Creator:: Schonzeit, Michael Harvey
Resource Type:: Masters Thesis
Full Text:: G. Pearcy for making these data available to me and for critically reviewing the manuscript. I am

Feeding habits of northern fur seals (Callorhinus ursinus) in the eastern Bering Sea

Creator:: Sinclair, Elizabeth
Abstract:: This study was conducted to determine the composition and size of prey consumed by northern fur seals (Callorhinus ursinus) in the eastern Bering Sea. Eighty three northern fur seals were collected in the summer and fall of 1981, 1982, and 1985 for examination of gastrointestinal contents. A total of 139...
Resource Type:: Masters Thesis
Full Text:: teacher ACKNOWLEDGEMENTS I extend special thanks to my advisor, Bill Pearcy for his enthusiasm and

Behavioral and demographic characteristics of northern sea lion rookeries

Creator:: Merrick, Richard L.
Abstract:: Northern sea lions (Eumetopias lubatus) were studied at three sites (Rogue Reef, Oregon, Marmot Island, Alaska, and T.Ugamak Island, Alaska) during the 1982, 1983, 1985, and 1986 breeding seasons. Data were collected on female activity budgets, attendance patterns, births, copulations, population structure, and patterns of seasonal and daily abundance. Females...
Resource Type:: Masters Thesis

Life history examination of darkblotched rockfish (Sebastes crameri) off the Oregon coast

Creator:: Nichol, Daniel Gerard
Abstract:: The growth, size and age composition, mortality and reproduction of darkblotched rockfish (Sebastes crameri) were examined using fishery data and analysis of fish characteristics for samples collected of f the Oregon coast. A total of 1060 fish, caught by commercial groundfish and shrimp trawlers operating out of Newport, Coos Bay...
Resource Type:: Masters Thesis

Seasonal changes in English sole distribution : an analysis of the inshore trawl fishery off Oregon

Creator:: Hewitt, Gary R.
Abstract:: Oregon English sole catch data from 0 to 80 fathoms between Coos Bay and Cape Lookout were examined for the years 1973, 1975, and 1976. English sole is a major target species of this inshore trawl fishery. Comparison of depths of maximal values of catch per unit effort, effort, and...
Resource Type:: Masters Thesis
Full Text:: . Pearcy Oregon English sole catch data from 0 to 80 fathoms between Coos Bay and Cape Lookout were

Long term albacore (Thunnus alalunga) spatio-temporal association with environmental variability in the Northeastern Pacific

Creator:: Phillips, A. Jason
Abstract:: This study investigated long-term (1961-2008) changes in albacore (Thunnus alalunga) abundance and distribution in relation to local environmental and large-scale climate indices in the Northeastern Pacific using time series and spatial analyses. Prior to the time series analysis, a wavelet analysis was conducted to examine nonrandom patterns of cyclical variability...
Resource Type:: Masters Thesis
Full Text:: . Lorenzo Ciannelli, Bill Pearcy, and Ric Brodeur for their knowledge, commitment, interest in this work

ScholarsArchive@OSU

Food habits, dietary overlap and gastric evacuation rates of rockfishes (genus Sebastes)

Relationships between oceanographic factors and the distribution of juvenile coho salmon (Oncorhynchus kisutch) off Oregon and Washington, 1982-1983

Reproduction, growth, feeding, and distribution of the mesopelagic fish Tactostoma macropus

Feeding selectivity of Dover sole (Microstomus pacificus Lockington) off Oregon

Relationships between lower trophic levels and hydrography during an upwelling season off Oregon

Feeding habits of northern fur seals (Callorhinus ursinus) in the eastern Bering Sea

Behavioral and demographic characteristics of northern sea lion rookeries

Life history examination of darkblotched rockfish (Sebastes crameri) off the Oregon coast

Seasonal changes in English sole distribution : an analysis of the inshore trawl fishery off Oregon

Long term albacore (Thunnus alalunga) spatio-temporal association with environmental variability in the Northeastern Pacific

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