Index Catalog // ScholarsArchive@OSU

Obstacles and Opportunities of Using a Mobile App for Marine Mammal Research

Creator:: Hann, Courtney H. and Stelle, Lei Lani
Abstract:: This study investigates the use of a mobile application, Whale mAPP, as a citizen science tool for collecting marine mammal sighting data. In just over three months, 1261 marine mammal sightings were observed and recorded by 39 citizen scientists in Southeast Alaska. The resulting data, along with a preliminary and...
Resource Type:: Article
Full Text:: of Using a Mobile App for Marine Mammal Research Courtney H. Hann 1,*, Lei Lani Stelle 2, Andrew

Effects of routine handling and tagging procedures on physiological stress responses in juvenile chinook salmon

Creator:: Sharpe, Cameron S., Thompson, Daniel A., Blankenship, H. Lee, and Schreck, Carl B.
Abstract:: Juvenile chinook salmon Oncorhynchus tshawytscha were subjected to handling and tagging protocols typical of normal hatchery operations and monitored for their physiological response to stress. Treatments included coded-wire-tagging, counting, ventral fin clipping, adipose fin clipping, and a procedure simulating a pond split. Treatment fish were also subjected to a standardized...
Resource Type:: Article
Full Text:: , Corvallis, Oregon 97331, USA DANIEL A. THOMPSON AND H. LEE BLANKENSHIP Washington Department of Fish and

Acoustic monitoring reveals the times and tides of harbor porpoise (Phocoena phocoena) distribution off central Oregon, U.S.A.

Creator:: Holdman, Amanda K., Haxel, Joseph H., Klinck, Holger, and Torres, Leigh G.
Abstract:: Harbor porpoises (Phocoena phocoena) are commonly observed in Oregon's nearshore marine environment yet knowledge of their ecosystem use and behavior remains limited, generating concerns for potential impacts on this species from future coastal development. Passive acoustic monitoring was used to investigate spatial and temporal variations in the presence and foraging...
Resource Type:: Article
Full Text:: , U.S.A.; JOSEPH H. HAXEL, Cooperative Institute for Marine Resources Studies, Oregon State University and

Distributional patterns of 0-group Pacific cod (Gadus macrocephalus) in the eastern Bering Sea under variable recruitment and thermal conditions

Creator:: Hurst, Thomas P., Moss, Jamal H., and Miller, Jessica A.
Abstract:: Despite the importance of Pacific cod in Bering Sea fisheries and foodwebs, little is known about the habitat use and the distribution of early life stages. We analysed 6 years of catch data for 0-group Pacific cod in fishery-independent surveys of the Bering Sea shelf. Juvenile cod were most commonly...
Resource Type:: Article
Full Text:: *, Jamal H. Moss2, and Jessica A. Miller3 1Resource Assessment and Conservation Engineering Division

Host Identity Matters in the Amphibian-Batrachochytrium dendrobatidis System: Fine-Scale Patterns of Variation in Responses to a Multi-Host Pathogen

Creator:: Gervasi, Stephanie, Gondhalekar, Carmen, Olson, Deanna H., and Blaustein, Andrew R.
Abstract:: Species composition within ecological assemblages can drive disease dynamics including pathogen invasion, spread, and persistence. In multi-host pathogen systems, interspecific variation in responses to infection creates important context dependency when predicting the outcome of disease. Here, we examine the responses of three sympatric host species to a single fungal pathogen,...
Resource Type:: Article
Full Text:: Stephanie Gervasi1*, Carmen Gondhalekar2, Deanna H. Olson3, Andrew R. Blaustein1,4 1 Department of Zoology

Hepatic heat shock protein 70 and plasma cortisol levels in rainbow trout after tagging with a passive integrated transponder

Creator:: Feldhaus, Joseph W., Heppell, Scott A., Mesa, Matthew G., and Li, Hiram W.
Abstract:: This study examined the potentially stressful effects of tagging juvenile rainbow trout Oncorhynchus mykiss with passive integrated transponder (PIT) tags by measuring short-term (<120-h) changes in plasma concentrations of cortisol and hepatic heat shock protein 70 (hsp70). In a laboratory experiment, plasma cortisol levels were measured in fish before they...
Resource Type:: Article
Full Text:: integrated transponder (PIT) tags by measuring short-term (,120-h) changes in plasma concentrations of

Individual condition and stream temperature influence early maturation of rainbow and steelhead trout, Oncorhynchus mykiss

Creator:: McMillan, John R., Dunham, Jason B., Reeves, Gordon H., Mills, Justin S., and Jordan, Chris E.
Abstract:: Alternative male phenotypes in salmonine fishes arise from individuals that mature as larger and older anadromous marine-migrants or as smaller and younger freshwater residents. To better understand the processes influencing the expression of these phenotypes we examined the influences of growth in length (fork length) and whole body lipid content...
Resource Type:: Article
Full Text:: maturation of rainbow and steelhead trout, Oncorhynchus mykiss John R. McMillan & Jason B. Dunham & Gordon H

Characterization of the physiological stress response in lingcod

Creator:: Milston, Ruth H., Davis, Michael W., Parker, Steven J., Olla, Bori L., Clements, Shaun, and Schreck, Carl B.
Abstract:: The goal of this study was to describe the duration and magnitude of the physiological stress response in lingcod Ophiodon elongatus after exposure to brief handling and sublethal air stressors. The response to these stressors was determined during a 24‐h recovery period by measuring concentrations of plasma cortisol, lactate, glucose,...
Resource Type:: Article
Full Text:: Stress Response in Lingcod RUTH H. MILSTON* Department of Fisheries and Wildlife and Oregon Cooperative

Submersible observations of deep-reef fishes of Heceta Bank, Oregon

Creator:: Pearcy, William G., Stein, David L., Hixon, Mark Anthony, Pikitch, Ellen K., Barss, William H., and Starr, Richard M.
Abstract:: Rockfishes, Sebastes spp.. were the most numerous and speciose fishes seen during 16 submersible dives from 64 to 305 m depth in the vicinity of Heceta Bank off the coast of Oregon. Dense schools of juvenile rockfishes and large yellowtail rockfish, S. flavidus, were observed only over rocky, high relief...
Resource Type:: Article
Full Text:: Bank, Oregon W. G. Pearcy, D. L. Stein, M. A. Hixon, E. K. Pikitch, W. H. Barss, and R. M. Starr

Variability in expression of anadromy by female Oncorhynchus mykiss within a river network

Creator:: Mills, Justin S., Dunham, Jason B., Reeves, Gordon H., McMillan, John R., Zimmerman, Christian E., and Jordan, Chris E.
Abstract:: We described and predicted spatial variation in marine migration (anadromy) of female Oncorhynchus mykiss in the John Day River watershed, Oregon. We collected 149 juvenile O. mykiss across 72 sites and identified locations used by anadromous females by assigning maternal origin (anadromous versus non-anadromous) to each juvenile. These assignments used...
Resource Type:: Article
Full Text:: mykiss within a river network Justin S. Mills & Jason B. Dunham & Gordon H. Reeves & John R. McMillan

ScholarsArchive@OSU

Obstacles and Opportunities of Using a Mobile App for Marine Mammal Research

Effects of routine handling and tagging procedures on physiological stress responses in juvenile chinook salmon

Acoustic monitoring reveals the times and tides of harbor porpoise (Phocoena phocoena) distribution off central Oregon, U.S.A.

Distributional patterns of 0-group Pacific cod (Gadus macrocephalus) in the eastern Bering Sea under variable recruitment and thermal conditions

Host Identity Matters in the Amphibian-Batrachochytrium dendrobatidis System: Fine-Scale Patterns of Variation in Responses to a Multi-Host Pathogen

Hepatic heat shock protein 70 and plasma cortisol levels in rainbow trout after tagging with a passive integrated transponder

Individual condition and stream temperature influence early maturation of rainbow and steelhead trout, Oncorhynchus mykiss

Characterization of the physiological stress response in lingcod

Submersible observations of deep-reef fishes of Heceta Bank, Oregon

Variability in expression of anadromy by female Oncorhynchus mykiss within a river network

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