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  • Risk, status and trends of non-fisheries threats in the California Current to groundfish species.


Northwest Fisheries Science Center (NWFSC) Conservation Biology CB - Ecosystem Science


Non fisheries threats
Risk, status and trends of non-fisheries threats in the California Current to groundfish species.
We are calculating the risk of focal groundfish species to non-fisheries related threats (e.g. shipping activity, inorganic pollution) and comparing the relative status and trends of each threat. This work is part of the larger Integrated Ecosystem Assessment for the California Current.

Research Themes

Ecosystem approach to improve management of marine resources
The California Current Large Marine Ecosystem, Puget Sound and the Columbia River Basin are home to a wide range of freshwater and marine resources that provide a wealth of ecosystem goods and services. Ensuring the resiliency and productivity of the California Current and Pacific Northwest ecosystems requires an integrated understanding of their structure, function, and vulnerability to increased human population growth in coastal communities and competing uses of coastal waterways and oceans. The NWFSC‘s approach to understanding these large ecosystems integrates studies across ecosystems (terrestrial, freshwater, and marine) and scientific disciplines to inform resource managers responsible for conserving marine resources.

Research Foci

Describe the interaction between human activities, particularly harvest of marine resources, and ecosystem function
Humans are an integral component of ecosystems. These ecosystems provide goods and services such as fish and seafood harvests, but these activities and others such as habitat alteration, pollution, and ocean acidification, can have strong impacts. Understanding the nature of these interactions will require observational and experimental studies aimed at identifying ecosystem-level responses to human activities, both individually and cumulatively, as well as human responses to ecosystem changes. Modeling spatial choices for harvesting and other human activities that are affected by ecosystem integrity, for example, can support a better understanding of the effects of ecosystembased management actions.


ecosystem pressures
anthropogenic pressures on the ecosystem
economic risk
time series
collection of data ordered along a temporal axis


None associated


Species Anoplopoma fimbria
Species Eopsetta jordani
petrale sole
Species Merluccius productus
North Pacific hake, Pacific hake, Pacific hake, whiting
Species Sebastes paucispinis
Species Sebastes ruberrimus
yelloweye rockfish
Species Squalus acanthias
picked dogfish, picky dog, piked dogfish, spiny dogfish, spurdog


Gregory Williams
Jameal Samhouri
Kelly Andrews
Principal Investigator
Phil Levin