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Resource Ecology and Ecosystem Modeling

Ecosystem Assessments

As fishery management organizations make progress in incorporating ecosystem-oriented thinking into management, there is a need to more clearly define the ecosystem-oriented management goals of the organization and the tools available to managers to attain those goals.

Parallel to this must be an expansion of the scientific advice provided to management beyond traditional single-species stock assessment advice.

There is a broad spectrum of ecosystem research currently being conducted that can provide useful advice to managers in this regard including GLOBEC and GLOBEC-like research efforts, habitat research, ongoing trophic interactions work, long-term monitoring of non-commercial species, and multispecies and ecosystem models.

Although the ultimate goal is to have quantitative predictions from this research to guide management, these efforts already serve as indicators of ecosystem status and trends. These indicators can provide an early warning system for managers, signaling human or climate-induced changes that may warrant management action. They can also serve to track the success of previous ecosystem-oriented management efforts.

The North Pacific Fishery Management Council (NPFMC) has started to include some of this ecosystem research information in an ecosystem considerations document that accompanies the groundfish stock assessment reports. We have designed a new format for this document that turns it into an ecosystem status and trend report beginning in 1999. The entire Ecosystem Considerations Chapter and many of the data time series are now available through the Ecosystem Considerations Web Site.

Quantitative indicators are being developed by Fisheries And The Environment (FATE) , a National Oceanic and Atmospheric Administration (NOAA) program that supports NOAA's mission to ensure the sustainable use of US fishery resources under a changing climate. The focus of FATE is on the development, and evaluation of leading ecological and performance indicators, their application to practical fishery management problems, and a continuing responsibility to regularly update this information thereby providing current information to NMFS stock analysts and the public.

Relevant Publications, Presentations, and Posters

Livingston, P.A., K. Aydin, J. Boldt, J. Ianelli, and J. Jurado-Molina. 2005. A framework for ecosystem impacts assessment using an indicator approach. ICES Journal of Marine Science 62: 592-597.

2005 Ecosystem Considerations Chapter (for 2006) (.pdf, 10MB)

2004 Ecosystem Considerations Chapter (for 2005)(.pdf, 8MB)

2003 Ecosystem Considerations Chapter (for 2004)(.pdf, 11MB)

2002 Ecosystem Considerations Chapter (for 2003)(.pdf, 5.4MB)

2001 Ecosystem Considerations Chapter (for 2002)(.pdf, 5.4MB)

2000 Ecosystem Considerations Chapter (for 2001)(.pdf, 2MB)

1999 Ecosystem Considerations Chapter (for 2000)(.pdf, 2.9MB)

Ecosystem considerations in fisheries management: linking ecosystem management goals with ecosystem research :

Livingston, P.A., L-L. Low, and R.J. Marasco. 1999. Eastern Bering Sea ecosystem trends. p. 140-162.In: Sherman, K. and Q. Tang (eds) Large Marine Ecosystems of the Pacific Rim: Assessment, Sustainability, and Management. Blackwell Science, Inc. Malden, MA. 465p.

Bycatch, utilization, and discards in the commercial groundfish fisheries of the Gulf of Alaska, eastern Bering Sea, and Aleutian Islands. (Queirolo et al., 1995. NOAA Tech. Memo. NMFS-AFSC-58.)(,pdf, 3MB)


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