Informing Oregon's Marine Protected Area (MPA) Baseline Past and Present Tribal Uses of Marine Resources

Oregon implemented a series of marine reserves from 2012 through the beginning of 2016 that will be evaluated in 2023. As part of that evaluation, several studies are focusing on the impact of the reserves on coastal communities. This project focused on tribal members with ancestral territory on the Oregon coast. Tribal members from three tribes, the Confederated Tribes of Siletz Indians, the Coquille Indian Tribe, and the Confederated Tribes of Coos, Lower Umpqua, and Siuslaw Indians were interviewed for this project.

A tale of two counties: Exploring co-produced coastal adaptation strategies in Tillamook County, OR and Grays Harbor County, WA.

Coastal communities throughout the US West Coast and elsewhere are facing the daunting task of preparing for climate change impacts, particularly the hazards from increased flooding and erosion. With sea-level rise, changing storminess patterns, and possible changes to the frequency and severity of major El Niño events, communities are already implementing emergency responses in order to protect infrastructure, beach access, and property.

Local and regional patterns in eelgrass (Zostera marina L.) communities along an upwelling-productivity gradient in Oregon estuaries, USA

In this thesis, I investigate the organization of eelgrass (Zostera marina L.) and mesograzer communities across local and regional scales in three upwelling- influenced estuaries located along the Oregon coast, USA. Eelgrass ecosystems are an important source of primary production in estuarine systems, providing numerous ecosystem services, including nursery habitat for commercial fish, water quality improvement, and sediment stabilization.

Relationship between nematocyst distribution and prey capture in hydromedusae

This thesis analyzes the relationship between prey capture and nematocyst distribution in the tentacles of the ambush predators, Aglantha digitale and Proboscidactyla flavicirrata, and the filter feeders, Clytia gregaria and Mitrocoma cellularia. The researcher used video observations to compare capture locations of Artemia salina nauplii relative to the bell margin of each species. Tentacle pictures were analyzed to determine if nematocyst abundance changes along their length. By analyzing behavior and morphology simultaneously, researchers found that the ambush predators A.

Surfing the Cascadia Subduction Zone: Risk Perceptions and Evacuation Knowledge among Oregon Surfers

This study attempts to better understand how Oregon surfers perceive risk in general, and specifically tsunami risks. Furthermore, do surfers’ risk perceptions also lead to positive intent to change behavior?

Why Do Animals Do What They Do, When They Do It? Characterizing the Role of the Hypothalamus-Pituitary-Adrenal Axis in Seasonal Life-History Transitions

Resource availability follows seasonal cycles in environmental conditions. To align physiology and behavior with prevailing environmental conditions, seasonal animals integrate cues from the environment with their internal state. One of the systems animals use to integrate those cues is the hypothalamus-pituitary-adrenal (HPA) axis and its primary effector, glucocorticoid hormones. The HPA axis has wide-ranging effects on physiology and behavior and, in the context of a glucocorticoid stress response, is known to mediate tradeoffs between immediate survival and future fitness.

Competing Roles of Sea Level Rise and Sediment Supply on Sediment Accretion and Carbon Burial in Tidal Wetlands; Northern Oregon U.S.A.

Quantification of contemporary sediment and carbon accumulation within Oregon tidal saline wetlands will: (1) fill a critical knowledge gap, and (2) naturally test without complicating variables whether sea level rise or sediment supply primarily control wetland growth. Here we measure vertical accretion rates and carbon burial rates in three Oregon estuaries – Youngs Bay, Tillamook Bay, and the Salmon River Estuary – of differing relative sea level rise rates (0.28 ± 0.44, 1.8 ± 0.4, and 2.2 ± 0.3 mm yr-1, respectively) and sediment loads (39, 160, and 24 t yr-1, respectively).

Assessing the influence of environmental pH on algal physiology using a novel culture system

Since the Industrial Revolution, surface ocean pH has declined due to the input of anthropogenically derived carbon dioxide, termed ocean acidification. Examinations of phytoplankton physiology in the face of changing pH are becoming more important as anthropogenically-driven pH decreases in the surface ocean progress (termed ocean acidification). Previous research has shown that phytoplankton response to acidification are highly variable, with some taxa showing improvement and some showing marked deterioration.

Continuity & Change: Commercial Fishing & Community Resilience on the Oregon Coast

Commercial fishing is deeply embedded in the economy and culture of many coastal communities. Recent ecological, economic, and regulatory changes impacting fisheries are likely to have important consequences for this industry and the communities it supports. The objective of this study is to improve understanding of coastal community resilience through examination of the graying of the fleet phenomenon in two fishing communities in Oregon. This phenomenon has been studied extensively in Alaska, but little is known about this trend in the Pacific Northwest.