Index Catalog // ScholarsArchive@OSU

Coastal and Ocean Sciences at Oregon State University

Creator:: Malouf, Robert E.
Abstract:: The purpose of this report is to document the depth and breadth of research, education, and outreach activities in coastal and ocean sciences at Oregon State University. The scale and diversity of those activities are not well known outside of OSU, and in fact they are significantly underestimated, even by...
Resource Type:: Technical Report
Full Text:: by Oregon Sea Grant Robert Malouf, Director October 9, 2006 3 Contents Executive Summary 5

Nocturnal feeding of Pacific hake and jack mackerel off the mouth of the Columbia River, 1998-2004: implications for juvenile salmon predation

Creator:: Emmett, Robert L. and Krutzikowsky, Gregory K.
Abstract:: Predation by piscivorous marine fishes has been hypothesized to be a primary source of marine mortality for Pacific Northwest juvenile salmon. During the springs and summers of 1998–2004, we collected predator and prey fishes (forage and juvenile salmonids) at the surface at night off the mouth of the Columbia River....
Resource Type:: Article
Full Text:: -2004: Implications for Juvenile Salmon Predation Robert L. Emmett a & Gregory K. Krutzikowsky b a

Plankton food web dynamics and larval fish success : influence of prey and predator distributions on larval fish diet, growth, and assemblages in the Straits of Florida

Creator:: Gleiber, Miram R.
Abstract:: Survival of marine fishes during their early life history stage is tightly related to prey availability and predation pressure. Yet, our understanding of how individual larvae to entire assemblages are constrained by these factors is limited. We integrated biological sampling of larval fishes with fine-scale in situ imaging to relate...
Resource Type:: Dissertation
Full Text:: Miram R Gleiber, Su Sponaugle, Kelly L Robinson, and Robert K Cowen

Influence of Regional Oceanography on the Distributions, Trophic Interactions, Growth, and Survival of the Early Life History Stages of Fishes

Creator:: Swieca, Kelsey
Abstract:: Most marine fishes experience high rates of mortality during their early life history stages with far reaching consequences for adult population dynamics. Within a few weeks of hatching, relatively small changes in larval growth and mortality rates can lead to orders of magnitude variability in year-class strength. Growth and survival...
Resource Type:: Dissertation
Full Text:: Robinson, and Clare Hansen. Although we didn’t share the lab for long, I greatly appreciated your

Onshore-offshore variations in copepod community structure off the Oregon coast during the summer upwelling season

Creator:: Morgan, Cheryl A., Peterson, William T., and Emmett, Robert L.
Abstract:: During the summer of 1994, 1996, and 1997, we conducted hydrographic and plankton surveys of the upper 70 m in the nearshore, the continental shelf, and off shelf oceanic waters off Oregon, USA. Copepod densities and biomass were estimated along 4 transects from each cruise. The on shelf copepod biomass...
Resource Type:: Article
Full Text:: . Peterson2, Robert L. Emmett2 1Cooperative Institute for Marine Resources Studies, Oregon State University

Biologically Active Factors against the Monogenetic Trematode Gyrodactylus stellatus in the Serum and Mucus of Infected Juvenile English Soles

Creator:: Moore, Michelle M., Kaattari, Stephen L., and Olson, Robert E.
Abstract:: Length of survival of the monogenetic trematode Gyrodactylus stellatus in serum and mucus collected from English soles Pleuronectes vetulus at different stages of a laboratory epizootic suggests that both the mucus and serum may be involved in resistance to the parasite. In general, trematode survival was shorter in the serum...
Resource Type:: Article
Full Text:: associated with mucus secretions (Lester and Adams 1974b; Kamiso 1983; Scott and Robinson 1984; Evans and

Columbia River plume fronts. II. Distribution, abundance, and feeding ecology of juvenile salmon

Creator:: De Robertis, Alex, Morgan, Cheryl A., Schabetsberger, Robert A., Zabel, Richard W., Brodeur, Richard D., Emmett, Robert L., Knight, Carolyn M., Krutzikowsky, Gregory K., and Casillas, Edmundo
Abstract:: Well-defined fronts develop at the seaward edge of riverine plumes where suspended materials and planktonic organisms are concentrated by convergent water flows. Riverine plume fronts have been hypothesized to be favorable fish habitats because they can lead to localized prey aggregations. We examined the spatial distribution of juvenile Pacific salmonids...
Resource Type:: Article
Full Text:: , Robert A. Schabetsberger2,3, Richard W. Zabel4, Richard D. Brodeur1, Robert L. Emmett1, Carolyn M

Species composition and community structure of pelagic nekton off Oregon and Washington under variable oceanographic conditions

Creator:: Brodeur, Richard D., Fisher, Joseph P., Emmett, Robert L., Morgan, Cheryl A., and Casillas, Ed
Abstract:: Dramatic changes in the physical and biological conditions off Washington and Oregon, USA, have occurred since 1998, including extreme El Niño (warm) and La Niña (cool) years, high and low Columbia River flow years, a major intrusion of subarctic water, and a low oxygen event on the shelf. The occurrence...
Resource Type:: Article
Full Text:: Richard D. Brodeur1,*, Joseph P. Fisher2, Robert L. Emmett1, Cheryl A. Morgan3, Ed Casillas4 1Northwest

Interannual variability in the Northern California Current food web structure: Changes in energy flow pathways and the role of forage fish, euphausiids, and jellyfish

Creator:: Ruzicka, James J., Brodeur, Richard D., Emmett, Robert L., Steele, John H., Zamon, Jeannette E., Morgan, Cheryl A., Thomas, Andrew C., and Wainwright, Thomas C.
Abstract:: The Northern California Current (NCC) is a seasonally productive and open ecosystem. It is home to both a diverse endemic community and to seasonally transient species. Productivity and food web structure vary seasonally, interannually, and decadally due to variability in coastal upwelling, climate-scale physical processes, and the migratory species entering...
Resource Type:: Article
Full Text:: ,⇑, Richard D. Brodeur b, Robert L. Emmett b, John H. Steele c, Jeannette E. Zamon d, Cheryl A. Morgan a

1981/1982 Annual Report

Creator:: Hatfield Marine Science Center
Resource Type:: Other
Full Text:: rockfish, Sebastes melanops. Env. Biol. Fish. In press. BREESE, W. P. Lannan, J. E., A. Robinson, and W

ScholarsArchive@OSU

Coastal and Ocean Sciences at Oregon State University

Nocturnal feeding of Pacific hake and jack mackerel off the mouth of the Columbia River, 1998-2004: implications for juvenile salmon predation

Plankton food web dynamics and larval fish success : influence of prey and predator distributions on larval fish diet, growth, and assemblages in the Straits of Florida

Influence of Regional Oceanography on the Distributions, Trophic Interactions, Growth, and Survival of the Early Life History Stages of Fishes

Onshore-offshore variations in copepod community structure off the Oregon coast during the summer upwelling season

Biologically Active Factors against the Monogenetic Trematode Gyrodactylus stellatus in the Serum and Mucus of Infected Juvenile English Soles

Columbia River plume fronts. II. Distribution, abundance, and feeding ecology of juvenile salmon

Species composition and community structure of pelagic nekton off Oregon and Washington under variable oceanographic conditions

Interannual variability in the Northern California Current food web structure: Changes in energy flow pathways and the role of forage fish, euphausiids, and jellyfish

1981/1982 Annual Report

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