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Marine Heatwaves Influence Depth Preferences of Chinook Salmon (Oncorhynchus tshawytscha)

Creator:: Teahan, Andrew
Abstract:: Marine heatwaves have become more common over the past several years. The 2014-2015 ‘warm blob’ had profound effects on marine ecosystems in the Northeast Pacific. Given the particular habitat needs of Chinook Salmon (Oncorhynchus tshawytscha) we wanted to examine the impacts of the heatwave on Chinook depth distribution. We examined...
Resource Type:: Masters Thesis
Full Text:: Preferences of Chinook Salmon (Oncorhynchus tshawytscha) Andrew Teahan, M. Renee Bellenger, Stacey Miller

Distributions of Dungeness crab (Cancer magister) zoea in the California Current: Closing a life history gap

Creator:: Chin, Andrew
Abstract:: Dungeness crab (Cancer magister) is an important commercial species along the west coast of North America, and its population dynamics are highly influenced by interactions between environmental variability and early life history distribution. However, the distribution of the early larvae stages of Dungeness crab offshore is poorly known. To fill...
Resource Type:: Research Paper
Full Text:: Andrew Chin1, Kelsey Swieca2, Su Sponaugle2, Robert K Cowen3 Final Draft 8/23/19 1University

Winter dispersal and activity patterns of post-breeding black-legged kittiwakes Rissa tridactyla from Prince William Sound, Alaska

Creator:: McKnight, Aly, Irons, David B., Allyn, Andrew J., Sullivan, Kelsey M., and Suryan, Robert M.
Abstract:: As colony-specific wintering ecology of small and medium-sized seabirds is poorly understood, it has been generally assumed that winter conditions have the same effect on all individuals from any given colony. However, advances in global positioning technology now allow researchers to investigate movements of smaller seabirds. We tracked black-legged kittiwakes...
Resource Type:: Article
Full Text:: , Alaska Aly McKnight1,*, David B. Irons1, Andrew J. Allyn2, Kelsey M. Sullivan3, Robert M. Suryan4 1US

Environmental and Ecological Effects of Ocean Renewable Energy Development: A Current Synthesis

Creator:: Boehlert, George W. and Gill, Andrew B.
Abstract:: Marine renewable energy promises to assist in the effort to reduce carbon emissions worldwide. As with any large-scale development in the marine environment, however, it comes with uncertainty about potential environmental impacts, most of which have not been adequately evaluated—in part because many of the devices have yet to be...
Resource Type:: Article
Full Text:: t a N d a N d r E w b . g i l l m a r i N E r E N E wa b l E E N E r g y | i N a r E g u

Characterizing neutral and adaptive genomic differentiation in a changing climate: The most northerly freshwater fish as a model

Creator:: O'Malley, Kathleen G., Vaux, Felix, and Black, Andrew N.
Abstract:: Arctic freshwater ecosystems have been profoundly affected by climate change. Given that the Arctic charr (Salvelinus alpinus) is often the only fish species inhabiting these ecosystems, it represents a valuable model for studying the impacts of climate change on species life‐history diversity and adaptability. Using a genotyping‐by‐se‐ quencing approach, we...
Resource Type:: Article
Full Text:: model Kathleen G. O’Malley | Felix Vaux | Andrew N. Black This is an open access article under the

Long Term Trends and Sources of Sound in United States Waters

Creator:: Haver, Samara M.
Abstract:: Passive acoustic monitoring is a valuable tool for observing the status of marine environments. Comparisons of underwater soundscapes over temporal and spatial scales can provide data to inform marine conservation efforts, including protection of threatened and endangered species. This dissertation utilizes passive acoustic data collected via a broadly spaced array...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Samara M. Haver for the degree of Doctor of Philosophy in

Differential gene expression between fall- and spring-run Chinook salmon assessed by long serial analysis of gene expression

Creator:: Bernier, Jeremiah C., Birkeland, Shanda R., Cipriano, Michael J., McArthur, Andrew G., and Banks, Michael A.
Abstract:: Of all Pacific salmonids, Chinook salmon Oncorhynchus tshawytscha display the greatest variability in return times to freshwater. The molecular mechanisms of these differential return times have not been well described. Current methods, such as long serial analysis of gene expression (LongSAGE) and microarrays, allow gene expression to be analyzed for...
Resource Type:: Article
Full Text:: Jeremiah C. Bernier a , Shanda R. Birkeland b , Michael J. Cipriano b , Andrew G. McArthur b & Michael A

An Investigation into the Distribution, Residency Patterns, Population Connectivity, and Abundance of Blue Whales (Balaenoptera musculus) in New Zealand

Creator:: Barlow, Dawn R.
Abstract:: Species conservation depends on robust population assessment. Data on population abundance, distribution, and connectivity are critical for effective management, especially as baseline information for newly documented populations. I describe a pygmy blue whale (Balaenoptera musculus brevicauda) population in New Zealand waters with year-round presence that overlaps with industrial activities. This...
Resource Type:: Masters Thesis
Full Text:: Hemisphere: Antarctic blue whales (B. m. intermedia), pygmy blue whales (B. m. brevicauda), and Chilean

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:: , Andrew C. Thomas e, Thomas C. Wainwright b aCooperative Institute for Marine Resources Studies, Oregon

Ecology and Distribution of Blue Whales in New Zealand Across Spatial and Temporal Scales

Creator:: Barlow, Dawn R.
Abstract:: The distribution of mobile marine predators often reflects underlying dynamic ecological processes. The geographical focus of this PhD is the South Taranaki Bight (STB) of New Zealand, where wind-driven coastal upwelling generates productivity and prey to support a blue whale foraging ground. The STB is also New Zealand’s most industrial...
Resource Type:: Dissertation
Full Text:: with wind speed above 5.5 m s-1 in the preceding 30 days to the aggregation

ScholarsArchive@OSU

Marine Heatwaves Influence Depth Preferences of Chinook Salmon (Oncorhynchus tshawytscha)

Distributions of Dungeness crab (Cancer magister) zoea in the California Current: Closing a life history gap

Winter dispersal and activity patterns of post-breeding black-legged kittiwakes Rissa tridactyla from Prince William Sound, Alaska

Environmental and Ecological Effects of Ocean Renewable Energy Development: A Current Synthesis

Characterizing neutral and adaptive genomic differentiation in a changing climate: The most northerly freshwater fish as a model

Long Term Trends and Sources of Sound in United States Waters

Differential gene expression between fall- and spring-run Chinook salmon assessed by long serial analysis of gene expression

An Investigation into the Distribution, Residency Patterns, Population Connectivity, and Abundance of Blue Whales (Balaenoptera musculus) in New Zealand

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

Ecology and Distribution of Blue Whales in New Zealand Across Spatial and Temporal Scales

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