Index Catalog // ScholarsArchive@OSU

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:: Spatial Changes in Trawl Fishing Effort in Response to

An Evaluation of the Efficiency of Minnow Traps for Estimating the Abundance of Minnows in Desert Spring Systems

Creator:: Peterson, James T., Scheerer, Paul D., and Clements, Shaun
Abstract:: Desert springs are sensitive aquatic ecosystems that pose unique challenges to natural resource managers and researchers. Among the most important of these is the need to accurately quantify population parameters for resident fish, particularly when the species are of special conservation concern. We evaluated the efficiency of baited minnow traps...
Resource Type:: Article
Full Text:: for Estimating the Abundance of Minnows in Desert Spring Systems An Evaluation of the Efficiency of

Tag Location and Retention in Black Rockfish: Feasibility of Using PIT Tags in a Wild Marine Species

Creator:: Parker, Steven J. and Rankin, Polly S.
Abstract:: Tag and recovery programs can provide valuable information on population size and exploitation rates in fishes. Passive integrated transponder (PIT) tags are ideal for use in such programs because they provide identification of individual fish and are invisible to anglers, circumventing problems with nonreporting of tags. Our objective was to...
Resource Type:: Article
Full Text:: Tag Location and Retention in Black Rockfish: Feasibility of

Gear-Related Mortality in Selective Fisheries for Ocean Salmon

Creator:: Lawson, Peter W. and Sampson, David B.
Abstract:: In ocean fisheries for Pacific salmon Oncorhynchus spp., there can be several forms of gear-related mortality. Much research effort has been directed at estimating mortality rates for salmon that are hooked and then released. Also potentially important but not easily measured is mortality of fish that escape from the hook...
Resource Type:: Article
Full Text:: Gear-Related Mortality in Selective Fisheries for Ocean Salmon

Discard Mortality of Trawl-Caught Lingcod in Relation to Tow Duration and Time on Deck

Creator:: Parker, Steven J., Rankin, Polly S., Hannah, Robert W., and Schreck, Carl B.
Abstract:: The lingcod Ophiodon elongatus is a benthic marine fish commonly caught by groundfish trawlers and discarded due to low catch limits. Managers must account for the mortality of bycatch to assess population status accurately. Our objectives were to estimate the actual mortality of trawl-discarded lingcod (50- 84 cm) and describe...
Resource Type:: Article
Full Text:: condition in the field. Transactions of the American Fisheries Society 122:63–73. Albin, D., and K. A

Dam Removal and Implications for Fish Health: Ceratomyxa shasta in the Williamson River, Oregon, USA

Creator:: Hurst, Charlene N., Holt, Richard A., and Bartholomew, Jerri L.
Abstract:: The removal of dams on a river is one potential tool for the ecological restoration of native salmonid fishes. However, the removal of barriers also introduces risks, such as the introduction of fish pathogens into previously isolated populations. The proposed removal of four dams on the Klamath River, Oregon–California, provides...
Resource Type:: Article
Full Text:: . Ceratomyxa shasta: epizootiology in Chinook salmon of central Oregon. Transactions of the American Fisheries

Juvenile Salmonid Use of Freshwater Emergent Wetlands in the Floodplain and Its Implications for Conservation Management

Creator:: Henning, Julie A., Gresswell, Robert E., and Fleming, Ian A.
Abstract:: A recent trend of enhancing freshwater emergent wetlands for waterfowl and other wildlife has raised concern about the effects of such measures on juvenile salmonids. We undertook this study to quantify the degree and extent of juvenile Pacific salmon Oncorhynchus spp. utilization of enhanced and unenhanced emergent wetlands within the...
Resource Type:: Article
Full Text:: of coho salmon in Carnation Creek, British Columbia. Transactions of the American Fisheries Society

Increasing Thiamine Concentrations in Lake Trout Eggs from Lakes Huron and Michigan Coincide with Low Alewife Abundance

Creator:: Riley, Stephen C., Rinchard, Jacques, Honeyfield, Dale C., Evans, Allison N., and Begnoche, Linda
Abstract:: Lake trout Salvelinus namaycush in the Laurentian Great Lakes suffer from thiamine deficiency as a result of adult lake trout consuming prey containing thiaminase, a thiamine-degrading enzyme. Sufficiently low egg thiamine concentrations result in direct mortality of or sublethal effects on newly hatched lake trout fry. To determine the prevalence...
Resource Type:: Article
Full Text:: Increasing Thiamine Concentrations in Lake Trout Eggs from

The influence of release strategy and migration history on capture rate of Oncorhynchus mykiss in a rotary screw trap

Creator:: Tattam, Ian A., Ruzycki, James R., Bayley, Peter B., Li, Hiram W., and Giannico, Guillermo R.
Abstract:: Rotary screw traps are used throughout the West Coast of North America to capture emigrating juvenile salmonids. Calibrating the capture efficiency of each trap is essential for valid estimates of fish passage. We released Passive Integrated Transponder (PIT) tagged Oncorhynchus mykiss upstream of a rotary screw trap in the South...
Resource Type:: Article
Full Text:: covariation in survival rates of Northeast Pacific Chum salmon. Transactions of 412 the American Fisheries

Estimating Habitat-Specific Abundances of PIT-Tagged Juvenile Salmonids Using Mobile Antennas: A Comparison with Standard Electrofishing Techniques in a Small Stream

Creator:: Sloat, Matthew R., Baker, Peter F., and Ligon, Franklin K.
Abstract:: The use of passive integrated transponder (PIT) tags in ecological studies is increasingly common, but evaluations of their performance and range of application in the field are still emerging. Here, we compare habitat unit–scale abundance estimates of PIT-tagged juvenile coho salmon Oncorhynchus kisutch and steelhead O. mykiss derived from multiple-pass...
Resource Type:: Article
Full Text:: Juvenile Salmonids Using Mobile Antennas: A Comparison with Standard Electrofishing Techniques in a Small

ScholarsArchive@OSU

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

An Evaluation of the Efficiency of Minnow Traps for Estimating the Abundance of Minnows in Desert Spring Systems

Tag Location and Retention in Black Rockfish: Feasibility of Using PIT Tags in a Wild Marine Species

Gear-Related Mortality in Selective Fisheries for Ocean Salmon

Discard Mortality of Trawl-Caught Lingcod in Relation to Tow Duration and Time on Deck

Dam Removal and Implications for Fish Health: Ceratomyxa shasta in the Williamson River, Oregon, USA

Juvenile Salmonid Use of Freshwater Emergent Wetlands in the Floodplain and Its Implications for Conservation Management

Increasing Thiamine Concentrations in Lake Trout Eggs from Lakes Huron and Michigan Coincide with Low Alewife Abundance

The influence of release strategy and migration history on capture rate of Oncorhynchus mykiss in a rotary screw trap

Estimating Habitat-Specific Abundances of PIT-Tagged Juvenile Salmonids Using Mobile Antennas: A Comparison with Standard Electrofishing Techniques in a Small Stream

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