The Second Leg of the 2011 Summer Survey in the Western Gulf of Alaska has begun! Once again, researchers and students from Alaska and Washington State are onboard the F/V Northwest Explorer conducting surface trawls with concurrent oceanography and acoustic profiling. Our science crew consists of lead acoustician Jennifer Nemura (University of Washington), lead oceanographer Ayla Doubbleday (University of Alaska, Fairbanks graduate student), Brendan Coffin, Michael Kohan (both University of Alaska, Juneau graduate students), seabird / marine mammal observer Jackelyn Slawson (US Fish and Wildlife), and Chief Scientist Wyatt Fournier from NOAA’s Alaska Fisheries Science Center, TSMRI, in Juneau, Alaska.
Our research goal is to identify and quantify major ecosystem processes that regulate recruitment strength of key groundfish species in the Gulf of Alaska that are commercially and ecologically important. We’re studying five key species in particular: arrowtooth flounder (Atheresthes stomias), Pacific cod (Gadus macrocephalus), Pacific ocean perch (Sebastes alutus), sablefish (Anoplopoma fimbria), and walleye pollock (Theragra chalcogramma).
Recruitment and survival of these species depends on a biophysical gauntlet that occurs as they switch from an early life history offshore pelagic phase to a nearshore settlement phase. To investigate the mechanisms affecting recruitment and survival, we will contrast two regions: the western Gulf of Alaska with a broad shelf dominated by high oceanographic variability and large demersal fish biomass, and the eastern Gulf of Alaska with a narrower shelf, lower demersal biomass, and higher species diversity.
The first leg of our survey in July covered the eastern Gulf grid, and our survey this month will cover the western Gulf grid.
NPRB staff begins developing draft research priorities for the Core Program in late July and August. Submit before July 2nd to be considered for the current year’s RFP development.
NPRB maintains scientific programs designed to address pressing fishery management issues and Alaska marine ecosystem information needs.
CORE PROGRAM
NPRB supports a competitive, peer-reviewed annual request for proposal (RFP) process dedicated to marine research in Alaskan waters.
The Arctic Integrated Ecosystem Reserach Program looked at how physical changes in the ocean influence the flow of energy through the marine food web in the Bering Strait, Chukchi Sea, and western Beaufort Sea from 2017-2021.
OUTREACH PROGRAM
Supporting science communication, engagement, outreach, and education initiatives for all our research programs.
LONG-TERM MONITORING
This program supports new or existing time-series research that enhance the ability to understand the current state of marine ecosystems.
The Bering Sea Project, a partnership between the North Pacific Research Board and the National Science Foundation, sought to understand the impacts of climate change and dynamic sea ice cover on the eastern Bering Sea ecosystem.
INTEGRATED ECOSYSTEM RESEARCH
These are large-scale interdisciplinary ecosystem-based programs, requiring multiple agency coordination, collaboration, and investigation.
GRADUATE STUDENT RESEARCH AWARDS
NPRB supports next generation scientists, researchers, and resource managers to further their studies in relevant fields of marine science and to our mission.
The Gulf of Alaska Project tested three main hypotheses about the survival and recruitment of five focal groundfish species (Pacific cod, Pacific ocean perch, walleye pollock, arrowtooth flounder, sablefish) during their first year of life.
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