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Filtering by: License Attribution 4.0 (CC BY 4.0) Remove constraint License: Attribution 4.0 (CC BY 4.0) Non-Academic Affiliation Oregon State University. Sea Grant College Program Remove constraint Non-Academic Affiliation: Oregon State University. Sea Grant College Program Resource Type Article Remove constraint Resource Type: Article

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A Comparison of Bulk Estuarine Turnover Timescales to Particle Tracking Timescales Using a Model of the Yaquina Bay Estuary

Creator:

Lemagie, Emily P. and Lerczak, James A.

Abstract:

The ability to determine a bulk estuarine turnover timescale that is well defined under realistic conditions is in high demand for estuarine research and management. We compare how turnover timescales vary with tidal and river forcing from idealized forcing scenarios using a three-dimensional circulation model of the Yaquina Bay estuary...

Resource Type:

Article
Multiple steroid and thyroid hormones detected in baleen from eight whale species

Creator:

Lysiak, Nadine S., Moore, Michael J., Hunt, Kathleen E., Robbins, Jooke, Seton, Rosemary E., Buck, C. Loren, and Torres, Leigh G.

Abstract:

Recent studies have demonstrated that some hormones are present in baleen powder from bowhead (Balaena mysticetus) and North Atlantic right (Eubalaena glacialis) whales. To test the potential generalizability of this technique for studies of stress and reproduction in large whales, we sought to determine whether all major classes of steroid...

Resource Type:

Article
Classification of Animal Movement Behavior through Residence in Space and Time

Creator:

Orben, Rachael A., Thompson, David R., Tolkova, Irina, and Torres, Leigh G.

Abstract:

Identification and classification of behavior states in animal movement data can be complex, temporally biased, time-intensive, scale-dependent, and unstandardized across studies and taxa. Large movement datasets are increasingly common and there is a need for efficient methods of data exploration that adjust to the individual variability of each track. We...

Resource Type:

Article
Addressing Challenges in the Application of Animal Movement Ecology to Aquatic Conservation and Management

Creator:

Ogburn, Matthew B., Mills Flemming, Joanna E., Harrison, Autumn-Lynn, Cooke, Steven J., Torres, Leigh G., and Whoriskey, Frederick G.

Abstract:

The dynamic nature of most environments forces many animals to move to meet their fundamental needs. This is especially true in aquatic environments where shifts in spatial ecology (which are a result of movements) are among the first adaptive responses of animals to changes in ecosystems. Changes in the movement...

Resource Type:

Article
Coastal protection and conservation on sandy beaches and dunes : Context-dependent tradeoffs in ecosystem service supply

Creator:

Ruggiero, Peter, Seabloom, Eric W., Hacker, Sally D., Biel, Reuben G., and Cohn, Nicholas

Abstract:

Managing multiple ecosystem services (ESs) across landscapes presents a central challenge for ecosystem-based management, because services often exhibit spatiotemporal variation and weak associations with co-occurring ESs. Further focus on the mechanistic relationships among ESs and their underlying biophysical processes provides greater insight into the causes of variation and covariation among...

Resource Type:

Article
Graphical coding data and operational guidance for implementation or modification of a LabVIEW®-based pHstat system for the cultivation of microalgae

Creator:

Golda, Rachel L., Needoba, Joseph A., Golda, Mark D., and Peterson, Tawnya D.

Abstract:

The influence of pH on phytoplankton physiology is an important facet of the body of research on ocean acidification. We provide data developed during the design and implementation of a novel pHstat system capable of maintaining both static and dynamic pH environments in a laboratory setting. These data both help...

Resource Type:

Article
Persistent spatial structuring of coastal ocean acidification in the California Current System

Creator:

Washburn, L., Russell, A., Menge, B. A., Hill, T., Cheriton, O., Nielsen, K. J., McManus, M. A., Feely, R. A., Gouhier, T., Byrne, R. H., Friederich, G., Sanford, E., Hacker, S., Chan, F., Blanchette, C. A., Gaylord, B., Barth, J. A., Sevadjian, J., Hofmann, G., and Chavez, F.

Abstract:

The near-term progression of ocean acidification (OA) is projected to bring about sharp changes in the chemistry of coastal upwelling ecosystems. The distribution of OA exposure across these early-impact systems, however, is highly uncertain and limits our understanding of whether and how spatial management actions can be deployed to ameliorate...

Resource Type:

Article
Particle shape impacts export and fate in the ocean through interactions with the globally abundant appendicularian Oikopleura dioica

Creator:

Conley, Keats R. and Sutherland, Kelly R.

Abstract:

Marine microbes exhibit highly varied, often non-spherical shapes that have functional significance for essential processes, including nutrient acquisition and sinking rates. There is a surprising absence of data, however, on how cell shape affects grazing, which is crucial for predicting the fate of oceanic carbon. We used synthetic spherical and...

Resource Type:

Article
Competing tradeoffs between increasing marine mammal predation and fisheries harvest of Chinook salmon

Creator:

Chasco, Brandon E., Kaplan, Isaac C., Thomas, Austen C., Acevedo-Gutiérrez, Alejandro, Noren, Dawn P., Ford, Michael J., Hanson, M. Bradley, Scordino, Jonathan J., Jeffries, Steven J., Marshall, Kristin N., Shelton, Andrew O., Matkin, Craig, Burke, Brian J., and Ward, Eric J.

Abstract:

Many marine mammal predators, particularly pinnipeds, have increased in abundance in recent decades, generating new challenges for balancing human uses with recovery goals via ecosystem-based management. We used a spatio-temporal bioenergetics model of the Northeast Pacific Ocean to quantify how predation by three species of pinnipeds and killer whales (Orcinus...

Resource Type:

Article
Competing tradeoffs between increasing marine mammal predation and fisheries harvest of Chinook salmon

Creator:

Acevedo-Gutiérrez, Alejandro, Chasco, Brandon E., Ward, Eric J., Ford, Michael J., Shelton, Andrew O., Thomas, Austen C., Burke, Brian J., Marshall, Kristin N., Matkin, Craig, Jeffries, Steven J., Noren, Dawn P., Kaplan, Isaac C., Scordino, Jonathan J., and Hanson, M. Bradley

Abstract:

Many marine mammal predators, particularly pinnipeds, have increased in abundance in recent decades, generating new challenges for balancing human uses with recovery goals via ecosystem-based management. We used a spatio-temporal bioenergetics model of the Northeast Pacific Ocean to quantify how predation by three species of pinnipeds and killer whales (Orcinus...

Resource Type:

Article
Effect of metformin exposure on growth and photosynthetic performance in the unicellular freshwater chlorophyte, Chlorella vulgaris

Creator:

Cummings, Brittany M., Needoba, Joseph A., and Peterson, Tawyna D.

Abstract:

Many pharmaceuticals have negative effects on biota when released into the environment. For example, recent work has shown that the commonly prescribed antidiabetic drug, metformin (N,N-dimethylbiguanide), has endocrine disrupting effects on fish. However, effects of metformin on aquatic primary producers are poorly known. We exposed cultured isolates of a freshwater...

Resource Type:

Article
Gene expression correlated with delay in shell formation in larval Pacific oysters (Crassostrea gigas) exposed to experimental ocean acidification provides insights into shell formation mechanisms

Creator:

Ventura, Alexander, Durland, Evan, De Wit, Pierre, and Langdon, Chris J.

Abstract:

Background: Despite recent work to characterize gene expression changes associated with larval development in oysters, the mechanism by which the larval shell is first formed is still largely unknown. In Crassostrea gigas, this shell forms within the first 24 h post fertilization, and it has been demonstrated that changes in...

Resource Type:

Article
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
Ocean acidification stress index for shellfish (OASIS): Linking Pacific oyster larval survival and exposure to variable carbonate chemistry regimes

Creator:

Hales, Burke, Gimenez, Iria, and Waldbusser, George G.

Abstract:

Understanding larval bivalve responses to variable regimes of seawater carbonate chemistry requires realistic quantification of physiological stress. Based on a degree-day modeling approach, we developed a new metric, the ocean acidification stress index for shellfish (OASIS), for this purpose. OASIS integrates over the entire larval period the instantaneous stress associated...

Resource Type:

Article
Drone Up! Quantifying Whale Behavior From a New Perspective Improves Observational Capacity

Creator:

Lemos, Leila, Chandler, Todd E., Torres, Leigh G., and Nieukirk, Sharon L.

Abstract:

During traditional boat-based surveys of marine megafauna, behavioral observations are typically limited to records of animal surfacings obtained from a horizontal perspective. Achieving an aerial perspective has been restricted to brief helicopter or airplane based observations that are costly, noisy, and risky. The emergence of commercial small unmanned aerial systems...

Resource Type:

Article
The Dynamics and Impact of Ocean Acidification and Hypoxia: Insights from Sustained Investigations in the Northern California Current Large Marine Ecosystem

Creator:

Chan, Francis, Barth, John A., Kroeker, Kristy J., Lubchenco, Jane, and Menge, Bruce A.

Abstract:

Coastal upwelling ecosystems around the world are defined by wind-generated currents that bring deep, nutrient-rich waters to the surface ocean where they fuel exceptionally productive food webs. These ecosystems are also now understood to share a common vulnerability to ocean acidification and hypoxia (OAH). In the California Current Large Marine...

Resource Type:

Article
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
Comparison of larval development in domesticated and naturalized stocks of the Pacific oyster Crassostrea gigas exposed to high pCO₂ conditions

Creator:

Durland, Evan, Waldbusser, George, and Langdon, Chris

Abstract:

Ocean acidification (OA) has had significant negative effects on oyster populations on the west coast of North America over the past decade. Many studies have focused on the physiological challenges experienced by young oyster larvae in high pCO₂/low pH seawater with reduced aragonite saturation state (Ωarag), which is characteristic of...

Resource Type:

Article
The effects of changing climate on estuarine water levels: a United States Pacific Northwest case study

Creator:

Parker, Kai, Hill, David, García-Medina, Gabriel, and Beamer, Jordan

Abstract:

Climate change impacts on extreme water levels (WLs) at two United States Pacific Northwest estuaries are investigated using a multicomponent process-based modeling framework. The integrated impact of climate change on estuarine forcing is considered using a series of sub-models that track changes to oceanic, atmospheric, and hydrologic controls on hydrodynamics....

Resource Type:

Article
Community Responses to Climate-Related Variability and Disease: The Critical Importance of Long-Term Research

Creator:

Menge, Bruce A., Caselle, Jennifer E., Barth, John A., Blanchette, Carol A., Carr, Mark H., Chan, Francis, Gravem, Sarah, Gouhier, Tarik C., Lubchenco, Jane, McManus, Margaret A., Milligan, Kristen, Novak, Mark, Raimondi, Peter T., Washburn, Libe, and White, J. Wilson

Abstract:

A major goal of the Partnership for Interdisciplinary Studies of Coastal Oceans (PISCO) has been to understand the impacts of climate change and variability on the coastal ecosystems of the inner shelf of the California Current Large Marine System in particular, and other marine and even nonmarine systems more generally....

Resource Type:

Article

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Academic Affiliation

College of Earth, Ocean, and Atmospheric Sciences12
Fisheries and Wildlife12
Integrative Biology8
Civil and Construction Engineering2
College of Education2
more Academic Affiliations »

Creator

Torres, Leigh G.6
Barth, John A.4
Chan, Francis4
Durland, Evan4
Menge, Bruce A.4
more Creators »

Date

Date range begin – Date range end

Current results range from 2015 to 2021

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Decade

2020-202913
2010-201924

File Format

pdf8

Language

English [eng]37
Portuguese [por]1
Spanish; Castilian [spa]1

License

Attribution 4.0 (CC BY 4.0)[remove]37

Non-Academic Affiliation

Oregon State University. Sea Grant College Program[remove]37
Hatfield Marine Science Center6
Oregon State University. Marine Mammal Institute1
Oregon. Department of Fish and Wildlife1

Peer Reviewed

Yes36

Resource Type

Article[remove]37

Rights Statement

In Copyright37

Subject

Dungeness crab2
Ocean acidification2
Pacific oyster2
Aragonite1
Calcification1
more Subjects »

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