Index Catalog // ScholarsArchive@OSU

Effects of physical gradients on the production dynamics of sediment-associated algae

Creator:: Davis, Michael W. and McIntire, C. David
Abstract:: Sediment-associated microalgal biomass expressed as chlorophyll a concentration, total organic matter concentration expressed as ash-free dry weight, and hourly rates of net community primary production and community oxygen consumption were measured at monthly intervales at medium sand, fine sand, and silt sites between 0.5 and 2.0 m above MLLW during...
Resource Type:: Article
Full Text:: sediment-associated algae Michael W. Davisl and C. David McIntire2 ' Harbor Branch Foundation, Inc., RR

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:: online: 09 Jan 2011 To cite this article: Peter W. Lawson & David B. Sampson (1996): Gear-Related

Effects of the 1997-1998 El Niño on early-juvenile Pacific hake Merluccius productus: age, growth, abundance, and diet in coastal nursery habitats

Creator:: Grover, Jill J., Buckley, Troy W., and Woodbury, David
Abstract:: The effects of anomalous oceanographic conditions on growth, abundance, spawn-date distributions, and diet of early-juvenile Pacific hake Merluccius productus were examined in nursery grounds off the coast of central California, USA. Spring collections from 2 consecutive years of El Nino conditions, 1997 and 1998, 1 year of La Nina conditions,...
Resource Type:: Article
Full Text:: nursery habitats Jill J. Grover1,*, Troy W. Buckley2, David Woodbury3,** 1College of Oceanic and

Estimating minke whale (Balaenoptera acutorostrata) boing sound density using passive acoustic sensors

Creator:: Martin, Stephen W., Marques, Tiago A., Thomas, Len, Morrissey, Ronald P., DiMarzio, Nancy, Moretti, David, Mellinger, David K., and Jarvis, Susan
Abstract:: Density estimation for marine mammal species is performed primarily using visual distance sampling or capture-recapture. Minke whales in Hawaiian waters are very difficult to sight; however, they produce a distinctive “boing” call, making them ideal candidates for passive acoustic density estimation. We used an array of 14 bottom-mounted hydrophones, distributed...
Resource Type:: Article
Full Text:: minke whale (Balaenoptera acutorostrata) boing sound density using passive acoustic sensors STEPHEN W

Repeat bathymetric surveys at 1-metre resolution of lava flows erupted at Axial Seamount in April 2011

Creator:: Caress, David W., Clague, David A., Paduan, Jennifer B., Martin, Julie F., Dreyer, Brian M., Chadwick, William W., Jr., Denny, Alden, and Kelley, Deborah S.
Abstract:: At sites with frequent submarine volcanic activity, it is difficult to discern between new and pre-existing lava flows. In particular, the distribution of the fissures from which lava erupts, the routes taken by lava flows and the relationship between the new flows and the pre-existing seafloor bathymetry are often unclear....
Resource Type:: Article
Full Text:: flows erupted at Axial Seamount in April 2011 David W. Caress1*, David A. Clague1, Jennifer B. Paduan1

Marine environment-based forecasting of coho salmon (Oncorhynchus kisutch) adult recruitment

Creator:: Rupp, David E., Wainwright, Thomas C., Lawson, Peter W., and Peterson, William T.
Abstract:: Generalized additive models (GAMs) were used to investigate the relationships between annual recruitment of natural coho salmon (Oncorhynchus kisutch) from Oregon coastal rivers and indices of the physical ocean environment. Nine indices were examined, ranging from large-scale ocean indicators, e.g., Pacific Decadal Oscillation (PDO), to indicators of the local ecosystem...
Resource Type:: Article
Full Text:: salmon (Oncorhynchus kisutch) adult recruitment DAVID E. RUPP,1,* THOMAS C. WAINWRIGHT,2 PETER W

Seafloor deformation and forecasts of the April 2011 eruption at Axial Seamount

Creator:: Chadwick, William W., Jr., Nooner, Scott L., Butterfield, David A., and Lilley, Marvin D.
Abstract:: Axial Seamount is an active submarine volcano located at the intersection between the Cobb hotspot and the Juan de Fuca spreading centre in the northeast Pacific Ocean1, 2. The volcano has been closely monitored since it erupted in 1998 (refs 3, 4). Since then, Axial Seamount seemed to exhibit a...
Resource Type:: Article
Full Text:: Seafloor deformation and forecasts of the April 2011 eruption at Axial Seamount William W. Chadwick Jr1

Volcanic Eruptions in the Deep Sea

Creator:: Rubin, Kenneth H., Soule, S. Adam, Chadwick, William W., Jr., Fornari, Daniel J., Clague, David A., Embley, Robert W., Baker, Edward T., Perfit, Michael R., Caress, David W., and Dziak, Robert P.
Abstract:: Volcanic eruptions are important events in Earth’s cycle of magma generation and crustal construction. Over durations of hours to years, eruptions produce new deposits of lava and/or fragmentary ejecta, transfer heat and magmatic volatiles from Earth’s interior to the overlying air or seawater, and significantly modify the landscape and perturb...
Resource Type:: Article
Full Text:: Geological Sciences, University of Florida, Gainesville, FL, USA. David W. Caress is Software Engineer

Estimating animal population density using passive acoustics

Creator:: Marques, Tiago A., Thomas, Len, Martin, Stephen W., Mellinger, David K., Ward, Jessica A., Moretti, David J., Harris, Danielle, and Tyack, Peter L.
Abstract:: conservation and ecology. Currently, the most widely used methods for obtaining such estimates involve either sighting animals from transect lines or some form of capture-recapture on marked or uniquely identifiable individuals. However, many species are difficult to sight, and cannot be easily marked or recaptured. Some of these species produce...
Resource Type:: Article
Full Text:: ,∗, Len Thomas1, Stephen W. Martin3, David K. Mellinger4, Jessica A. Ward5, David J. Moretti5, Danielle

Spatially explicit capture–recapture methods to estimate minke whale density from data collected at bottom-mounted hydrophones

Creator:: Marques, Tiago A., Thomas, Len, Martin, Stephen W., Mellinger, David K., Jarvis, Susan, Morrissey, Ronald P., Ciminello, Carroll-Anne, and DiMarzio, Nancy
Abstract:: Estimation of cetacean abundance or density using visual methods can be cost-ineffective under many scenarios. Methods based on acoustic data have recently been proposed as an alternative, and could potentially be more effective for visually elusive species that produce loud sounds. Motivated by a dataset of minke whale (Balaenoptera acutorostrata)...
Resource Type:: Article
Full Text:: . Marques • Len Thomas • Stephen W. Martin • David K. Mellinger • Susan Jarvis • Ronald P. Morrissey

ScholarsArchive@OSU

Effects of physical gradients on the production dynamics of sediment-associated algae

Gear-Related Mortality in Selective Fisheries for Ocean Salmon

Effects of the 1997-1998 El Niño on early-juvenile Pacific hake Merluccius productus: age, growth, abundance, and diet in coastal nursery habitats

Estimating minke whale (Balaenoptera acutorostrata) boing sound density using passive acoustic sensors

Repeat bathymetric surveys at 1-metre resolution of lava flows erupted at Axial Seamount in April 2011

Marine environment-based forecasting of coho salmon (Oncorhynchus kisutch) adult recruitment

Seafloor deformation and forecasts of the April 2011 eruption at Axial Seamount

Volcanic Eruptions in the Deep Sea

Estimating animal population density using passive acoustics

Spatially explicit capture–recapture methods to estimate minke whale density from data collected at bottom-mounted hydrophones

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