Index Catalog // ScholarsArchive@OSU

Seasonal distribution and environmental associations among late larval and juvenile rockfish (Sebastes spp.) off Oregon and Washington: new insights based on genetics

Creator:: Johansson, Mattias L., Litz, Marisa N. C., Brodeur, Richard D., Britt, Tristan A., Vanegas, Camilo A., Hyde, John R., and Banks, Michael A.
Abstract:: Cytochrome B sequence data (FASTA format) from the paper “Seasonal distribution and environmental associations among late larval and juvenile rockfish (Sebastes spp.) off Oregon and Washington: new insights based on genetics”. The data was generated from a sample of 2534 unknown, field collected late-larval and juvenile rockfishes from the Pacific...
Resource Type:: Dataset

Man and the Sea

Creator:: Hedgpeth, Joel W.
Abstract:: This document contains transcripts of Joel Hedgpeth’s series of lectures delivered over KPFA radio in Berkeley, California. These passionate lectures described the uses of oceanography, attempted to differentiate between oceanography and marine science, and encouraged students to pursue oceanography. Joel Hedgpeth was a director of the Hatfield Marine Science Center.
Resource Type:: Technical Report
Full Text:: Man and the Sea by Joel W • . Hedgpeth A series of

Spatial Changes in Trawl Fishing Effort in Response to Footrope Diameter Restrictions in the U.S. West Coast Bottom Trawl Fishery

Creator:: Hannah, Robert W.
Abstract:: Changes in the spatial distribution of U.S. west coast bottom-trawl effort in relation to areas of prime habitat for rockfish Sebastes spp. were evaluated between 1992 and 2001. Prime trawlable rockfish habitat (PTRH) was defined based on the spatial distribution of high rockfish catches from logbook data for 1992–1995. Bottom-trawl...
Resource Type:: Article
Full Text:: Trawl Fishery Robert W. Hannah a a Oregon Department of Fish and Wildlife, Marine Resources Program

Waning magmatic activity along the Southern Explorer Ridge revealed through fault restoration of rift topography

Creator:: Deschamps, A., Tivey, M. A., Chadwick Jr., W. W., and Embley, R. W.
Abstract:: We combine high-resolution bathymetry acquired using the Autonomous Underwater Vehicle ABE with digital seafloor imagery collected using the remotely operated vehicle ROPOS across the axial valley of the Southern Explorer Ridge (SER) to infer the recent volcanic and tectonic processes. The SER is an intermediate spreading ridge located in the...
Resource Type:: Article
Full Text:: , Woods Hole Oceanographic Institution, Woods Hole, Massachusetts, USA W. W. Chadwick Jr. Hatfield Marine

Responses by Pacific Halibut to Air Exposure: Lack of Correspondence among Plasma Constituents and Mortality

Creator:: Davis, Michael W. and Schreck, Carl B.
Abstract:: Age-1 and age-2 Pacific halibut Hippoglossus stenolepis were exposed to a range of times in air (0-60 min) and air temperatures (10 degrees C or 16 degrees C) that simulated conditions on deck after capture to test for correspondence among responses in plasma constituents and mortality. Pacific halibut mortality generally...
Resource Type:: Article
Full Text:: : Lack of Correspondence among Plasma Constituents and Mortality M. W. Davis a & C. B. Schreck b a

Comparison of growth, behavior and lipid concentrations of walleye pollock Theragra chalcogramma larvae fed lipid-enriched, lipid-deficient and field-collected prey

Creator:: Davis, Michael W. and Olla, Bori L.
Abstract:: While growth and survival of marine fish larvae in the sea may be dependent on prey type, size and concentration, nutritional quality of prey may also play an important role. This study investigates the relationships of lipid content of prey with growth, gas bladder size, sinking rate, behavior and survival...
Resource Type:: Article
Full Text:: Michael W. Davis, Bori L. Olla Cooperative Institute for Marine Resource Studies, Alaska Fisheries

Effects of physical factors on the vertical distribution of larval walleye pollock Theragra chalcogramma under controlled laboratory conditions

Creator:: Olla, Bori L. and Davis, Michael W.
Abstract:: This study examined, under controlled laboratory conditions, behavioral responses of larval walleye pollock (4 to 8 mm) to various physical factors that may potentially play a role in vertical movements and distribution. Diel periodicity in vertical distribution was evident and appeared to be under exogenous control. During the day, with...
Resource Type:: Article
Full Text:: Theragra chalcogramma under controlled laboratory conditions Bori L. Olla, Michael W. Davis

Fish Size and Exposure to Air: Potential Effects on Behavioral Impairment and Mortality Rates in Discarded Sablefish

Creator:: Davis, Michael W. and Parker, Steven J.
Abstract:: Fisheries models often assume that discarded undersized fish and target species will survive and contribute to future recruitment and yield. If smaller fish are more susceptible to capture stressors than larger fish, then the assumption that smaller discards would contribute to recruitment may not be true. We tested the hypothesis...
Resource Type:: Article
Full Text:: Michael W. Davis a & Steven J. Parker b a Alaska Fisheries Science Center, National Oceanic and

Recolonization of sediment-associated microalgae and effects of estuarine infauna on microalgal production

Creator:: Davis, Michael W. and Lee II, Henry
Abstract:: Experiments were performed to determine the rate of recolonization of sediment-associated microalga and effects of infauna on microalgal biomass and production. Estuarine sediment was defaunated and transplanted to the field and the laboratory. Recolonization of sediment by flora and fauna, relative to control sediment, was measured by chlorophyll a, gross...
Resource Type:: Article
Full Text:: ECOLOGY - PROGRESS SERIES Mar. Ecol. Prog. Ser. Michael W. Davis1* and Henry Lee, 112 Department of

Behavior of Nine Species of Pacific Rockfish after Hook-and-Line Capture, Recompression, and Release

Creator:: Hannah, Robert W. and Matteson, Keith M.
Abstract:: We evaluated the effect of barotrauma on the behavior of nine species of Pacific rockfish Sebastes spp. after hook-and-line capture and release using a video-equipped underwater release cage. Sampling was conducted across a range of bottom depths (12-194 m), mostly where barotrauma resulting from an expanded swim bladder and gaseous...
Resource Type:: Article
Full Text:: after Hook-and-Line Capture, Recompression, and Release Robert W. Hannah a & Keith M. Matteson a a

ScholarsArchive@OSU

Seasonal distribution and environmental associations among late larval and juvenile rockfish (Sebastes spp.) off Oregon and Washington: new insights based on genetics

Man and the Sea

Spatial Changes in Trawl Fishing Effort in Response to Footrope Diameter Restrictions in the U.S. West Coast Bottom Trawl Fishery

Waning magmatic activity along the Southern Explorer Ridge revealed through fault restoration of rift topography

Responses by Pacific Halibut to Air Exposure: Lack of Correspondence among Plasma Constituents and Mortality

Comparison of growth, behavior and lipid concentrations of walleye pollock Theragra chalcogramma larvae fed lipid-enriched, lipid-deficient and field-collected prey

Effects of physical factors on the vertical distribution of larval walleye pollock Theragra chalcogramma under controlled laboratory conditions

Fish Size and Exposure to Air: Potential Effects on Behavioral Impairment and Mortality Rates in Discarded Sablefish

Recolonization of sediment-associated microalgae and effects of estuarine infauna on microalgal production

Behavior of Nine Species of Pacific Rockfish after Hook-and-Line Capture, Recompression, and Release

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