Research to inform adaptation decisions for Alaska’s Salmon Fisheries

David Finnoff, University of Wyoming

Alaska is expected to experience ocean acidification faster than any other United States coastal waters, primarily due to its colder water which absorbs more carbon dioxide than warmer waters. With seafood industry job incomes over $1.5 billion annually and a communities that rely on healthy oceans for subsistence, nutrition, and culture, increased ocean acidification is expected to have significant implications. Research on the potential impact to salmon has emerged as one of the top priorities, identified during a 2016 statewide workshop and stakeholder survey. Despite the economic importance of salmon, little research has been done on the effects of ocean acidification on salmon and the fishing industry and communities that depends on salmon. Acidification has been shown to impair coho salmon’s ability to smell and detect their prey. It has also been shown to reduce pink salmon growth rates. In addition, future ocean acidification is expected to affect salmon prey species, which is expected to affect Pacific salmon survival, abundance and productivity. This project will investigate the implication of ocean acidification thresholds and major ecosystem shifts in the Gulf of Alaska on salmon. Integrated human-ecological models will be developed to simulate management scenarios to assess the benefits of pre-emptive adaptation planning and policy making. The information from modeling these scenarios will help create decision tools for salmon managers.
Tuesday, October 2, 2018

Low pH in Coastal Waters of the Gulf of Maine: A Data Synthesis-Driven Investigation of Probable Sources, Patterns and Processes Involved

David W. Townsend, University of Maine

Coastal Maine supports valuable lobster, clam, oyster and other shellfish industries that comprise >90% of Maine’s record $616M landed value last year. Earlier monitoring efforts in Maine and New Hampshire have documented periods of unusually acidic conditions in subsurface waters of Maine’s estuaries, which may be driven by episodic influxes of waters from the Gulf’s nutrient-rich, highly productive coastal current system. Sources of acidity to the estuaries also include the atmosphere, freshwater fluxes, and local eutrophication processes, all modulated by variability imparted by a number of processes.This project is a data synthesis effort to look at long-term trends in water quality data to identify the key drivers of acidification in this area. Extensive data sets dating back to the 1980s (including carbonate system, hydrography, oxygen, nutrients, and other environmental variables) will be assembled, subjected to QA/QC, and analyzed to assess acidification events in the context of landward, seaward and direct atmospheric sources, as may be related to processes operating on tidal to decadal timescales. Such analyses are requisite for any future vulnerability assessments of fishery-dependent communities in Maine and New Hampshire to the effects of coastal acidification.

Friday, December 22, 2017

Vulnerability and Adaptation to Ocean Acidification Among Pacific Northwest Mussel and Oyster Stakeholders

David J. Wrathall, George Waldbusser, and David Kling, Oregon State University

Ocean acidification (OA) is already harming shellfish species in the Pacific Northwest, a global hotspot of OA. While OA poses a threat to regional communities, economies, and cultures that rely on shellfish, identified gaps remain in adaptive capacity and vulnerability of several stakeholders. This project will address these gaps by extending long-standing collaborative OA vulnerability research with shellfish growers to include other shellfish users (e.g. port towns, Native American tribes and shellfish sector employees). The project includes five objectives: 1) Map variations in shellfisheries’ exposure to OA and identify those that are most sensitive, 2) quantify production losses from OA and costs of investment in adaptation 3) Identify potential pathways for adaptation, 4) identify key technological, institutional, legislative, financial and cultural barriers to OA adaptation, 5) evaluate the cost of potential adaptation strategies, and develop behavioral models to predict the likelihood of users adopting specific adaptation strategies. The research is designed to identify key vulnerabilities, determine the cost of OA to Pacific Northwest shellfish stakeholders, and to model adaptation pathways for maximizing resilience to OA. The adaptation framework developed here will be replicable in other shellfisheries yet to experience OA impacts.

 



Friday, December 22, 2017

The Olympic Coast as a Sentinel: An Integrated Social-Ecological Regional Vulnerability Assessment to Ocean Acidification

Jan Newton, University of Washington

The Olympic Coast, located in the Pacific Northwest U.S., stands as a region already experiencing effects of ocean acidification (OA). This poses risks to marine resources important to the public, especially local Native American tribes who are rooted in this place and depend on marine treaty-protected resources. This project brings together original social science research, synthesis of existing chemical and biological data from open ocean to intertidal areas, and model projections, to assess current and projected Olympic Coast vulnerabilities associated with OA. This critical research aims to increase the tribes’ ability to prepare for and respond to OA through respective community-driven strategies. By constructing a comprehensive, place-based approach to assess OA vulnerability, decision-makers in the Pacific Northwest will be better able to anticipate, evaluate and manage societal risks and impacts of OA. This collaborative project is developed in partnership with tribal co-investigators and regional resource managers from start to finish and is rooted in a focus on local priorities for social, cultural, and ecological health and adaptive capacity.

Friday, December 22, 2017

MAPCO2 Buoys at NCRMP CLASS III Sites in US Coral Reefs

Derek Manzello, NOAA Coral Reef Conservation Program

The long-term observations of carbonate chemistry at U.S.-affiliated coral reef sites are critical to understanding the impact of ocean acidification (OA) on coral ecosystems over time. This effort addresses NOAA’s Ocean Acidification Program (OAP) requirements for Monitoring of Ocean Chemistry by building and maintaining the coral reef portion of the OA monitoring network. This supports funding shortfalls associated with the NCRMP Class III MAPCO2 buoys at Cheeca Rocks and Kaneohoe Bay. Furthermore, this provides resources for the procurement of a new MAPCO2 buoy slated for deployment in Fagatele Bay, American Samoa in FY18, to establish the 2nd of three planned NCRMP Class III sites in the U.S. Pacific.

Tuesday, May 23, 2017
Categories: Projects
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