Index Catalog // ScholarsArchive@OSU

Active acoustic examination of the diving behavior of murres foraging on patchy prey

Creator:: Benoit-Bird, Kelly J., Kuletz, Kathy, Heppell, Scott, Jones, Nathan, and Hoover, Brian
Abstract:: During the 2008 and 2009 breeding seasons of murres Uria spp., we combined visual observations of these predators with active acoustics (sonar), fish trawls, zooplankton net tows, and hydrographic measurements in the area surrounding breeding colonies in the southeastern Bering Sea. We acoustically detected thousands of bubble trails that were...
Resource Type:: Article
Full Text:: information on the vertical overlap between murres and a variety of their prey across the entire day−night

Phenology in Calanus funmarchicus; hypotheses about control mechanisms

Creator:: Miller, Charles B., Cowles, Timothy J., Wiebe, Peter H., Copley, Nancy J., and Grigg, Helen
Abstract:: Calanus finmarchicus (Gunnerus) stratify narrowly near 500 m depth during their fifth copepodite resting phase in North Atlantic Slope Water off southern New England, USA. They probably achieve this by migration to a specific, daytime isolume. Photoperiod information provided by light intensity at depth could serve as a cure for...
Resource Type:: Article
Full Text:: Calanus finmarchicus We can find no reports of experimental studies of the factors inducing the resting

Predicting fish recruitment from juvenile abundance and environmental indices

Creator:: Stige, Leif Christian, Hunsicker, Mary E., Bailey, Kevin M., Yaragina, Natalia A., and Hunt, George L., Jr.
Abstract:: Prediction of year-class strength is a critical challenge for fisheries managers. Theoretically, predictions of recruitment should be better when they are based on estimates of cohort size taken close to the age of recruitment and may improve if the effects of environmental factors that influence pre-recruit mortality are accounted for....
Resource Type:: Article
Full Text:: complicate the picture. For 5 fish stocks of 4 species in 3 ecosystems, we examined the usefulness of indices

Geographically and environmentally driven spawning distributions of tuna species in the western Mediterranean Sea

Creator:: Reglero, Patricia, Ciannelli, Lorenzo, Alvarez-Berastegui, D., Balbin, R., Lopez-Jurado, J. L., and Alemany, F.
Abstract:: The spawning habitats of many large marine pelagic predators are poorly known. This lack of knowledge hampers conservation efforts that are aimed at identifying critical habitats for the spawning of these species. We hypothesized that phylogenetically related species show different adaptations and respond differently to environmental and geographical cues for...
Resource Type:: Article
Full Text:: (McGurk 1986), so factors affecting the placement of eggs and the maturation of larval stages are critical

Population growth across heterogeneous environments: effects of harvesting and age structure

Creator:: Durant, Joel M., Hidalgo, Manuel, Rouyer, Tristan, Hjermann, Dag O., Ciannelli, Lorenzo, Eikeset, Anne Maria, Yaragina, Natalia, and Stenseth, N. C.
Abstract:: Population growth is affected by several factors such as climate, species interaction and harvesting pressure. However, additional complexity can arise if fishing increases the sensitivity to environmental variability. To predict the effects of fisheries and climate on marine populations, there is a need for improved understanding of how they affect...
Resource Type:: Article
Full Text:: and age groups 2−4 (F2−4) for NS cod. Walleye pollock Theragra chalcogramma of the Bering Sea and

Theory, consequences and evidence of eroding population spatial structure in harvested marine fishes: a review

Creator:: Ciannelli, Lorenzo, Fisher, Jonathan A. D., Skern-Mauritzen, Mette, Hunsicker, Mary E., Hidalgo, Manuel, Frank, Kenneth T., and Bailey, Kevin M.
Abstract:: In marine populations, spatial structure arises over a wide range of scales and forms hierarchical aggregations. Changing spatial structure can alter the demographic and life history trait variation within populations and subject individuals to both novel environmental conditions and interspecific interactions. Thus, changes in the spatial structure of marine populations...
Resource Type:: Article
Full Text:: water temperatures ranging from 1° to 10°C. Pollock reach maturity at 3 to 4 yr of age, and individual

Fatty acid biomarkers in coldwater eelgrass meadows: elevated terrestrial input to the food web of age-0 Atlantic cod Gadus morhua

Creator:: Copeman, L. A., Parrish, C. C., Gregory, R. S., Jamieson, R. E., Wells, J., and Whiticar, M. J.
Abstract:: Lipid classes, fatty acids (FAs), and stable carbon isotopes of FAs were used to investi- gate dietary sources of organic carbon for juvenile Atlantic cod Gadus morhua during settlement into eelgrass Zostera marina . Primary producers, epibenthic prey, zooplankton, and fish were collected from August to November 2002 in shallow...
Resource Type:: Article
Full Text:: ) provide information on dietary intake and food constituents leading to se- questration of lipid reserves

Zooplankton Distribution and Transport in the California Current off Oregon

Creator:: Wu, D., Zhou, M., Pierce, S. D., Barth, John A., and Cowles, T.
Abstract:: This is an author's peer-reviewed final manuscript, as accepted by the publisher. The published article is copyrighted by Inter-Research and can be found at: https://doi.org/10.3354/meps10835
Resource Type:: Article
Full Text:: and 44º37´N, the standing zooplankton biomass was approximately 4×104 ton C. The 38 major flux of

Spatial overlap between forage fishes and the large medusa Chrysaora fuscescens in the northern California Current region

Creator:: Brodeur, Richard D., Barceló, Caren, Robinson, Kelly L., Daly, Elizabeth A., and Ruzicka, James J.
Abstract:: As in many regions of the world, the shelf waters of the western United States have experienced large increases and high interannual variability in jellyfish populations in recent decades. The northern California Current (NCC) is a productive upwelling zone that is home to large populations of medusae, particularly during some...
Resource Type:: Article
Full Text:: al. 2009). The in- dex ranges between 0, in the extreme case, when no individuals of either of the 2

Density-dependent effects of an introduced oyster, Crassostrea gigas, on a native intertidal seagrass, Zostera marina

Creator:: Wagner, Eric, Dumbauld, Brett R., Hacker, Sally D., Trimble, Alan C., Wisehart, Lorena M., and Ruesink, Jennifer L.
Abstract:: Seagrasses and bivalves co-occur worldwide, and each plays a role in the structure, function, and services of coastal ecosystems. While seagrasses are declining, bivalve aquaculture is expanding, and impacts from culture practices, as opposed to the cultured organisms themselves, need to be distinguished. In 2 experiments, we tested the effects...
Resource Type:: Article
Full Text:: -forming oysters (Beck et al. 2011), but expansion of bivalve aquaculture continues (No- mura 2009). These

ScholarsArchive@OSU

Active acoustic examination of the diving behavior of murres foraging on patchy prey

Phenology in Calanus funmarchicus; hypotheses about control mechanisms

Predicting fish recruitment from juvenile abundance and environmental indices

Geographically and environmentally driven spawning distributions of tuna species in the western Mediterranean Sea

Population growth across heterogeneous environments: effects of harvesting and age structure

Theory, consequences and evidence of eroding population spatial structure in harvested marine fishes: a review

Fatty acid biomarkers in coldwater eelgrass meadows: elevated terrestrial input to the food web of age-0 Atlantic cod Gadus morhua

Zooplankton Distribution and Transport in the California Current off Oregon

Spatial overlap between forage fishes and the large medusa Chrysaora fuscescens in the northern California Current region

Density-dependent effects of an introduced oyster, Crassostrea gigas, on a native intertidal seagrass, Zostera marina

Limit your search

Academic Affiliation

Creator

Date

Decade

Language

License

Non-Academic Affiliation

Peer Reviewed

Resource Type

Rights Statement

Subject

Search Constraints

Search Results

Limit your search