ecosystem approaches to fisheries management -development of operating guidelines evolving the...
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Ecosystem Approaches to Fisheries Management-Development of Operating Guidelines
Evolving the Ecosystem Approach to Fisheries (EAF) Topics for Content Areas of Guidelines Status of some ongoing Ecosystem Projects Discussion on Strategies for Ecosystem Guidelines
Marine Fisheries Advisory Committee MeetingJune 7-10, Washington, DC
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DefinitionsDefinitionsAn An ecosystemecosystem is a geographically specified system of organisms is a geographically specified system of organisms (including humans), the environment, and the processes that control (including humans), the environment, and the processes that control its dynamics. its dynamics.
The The environmentenvironment is the biological, chemical, physical, and social is the biological, chemical, physical, and social conditions that surround organisms.conditions that surround organisms.
When appropriate, the term When appropriate, the term environment should be environment should be qualified as biological, qualified as biological, chemical, physical, and/or chemical, physical, and/or social.social.
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Fishery Management(council, state, state
Commissions,International agreements)
Protected Resource Management
(MMPA, ESA, BirdsEtc.)
Water QualityManagement
(EPA, states, etc.)
Other management authorities for navigation, sanctuaries,food quality/safety, international agreements, climate change, etc.
Coastal & EEZModifications
(COE, MMS, etc.)
Elements of Regional Ecosystem Governancefisheries are more dependent on decisions in other sectors
interaction
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Incorporating Ecosystem Considerationsin Fisheries Management - questions
What are the important objectives of an Ecosystem Approach to Fisheries (EAF)?
To what extent are they addressed now (e.g., in the MSFCMA)?
What ecosystem objectives would not be adequately addressed under conservative single-species or FMP-by-FMP approaches?
How could various strategies facilitate better and more consistent implementation of ecosystem approaches to fisheries or ecosystem approaches to management (EAM)?
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Candidate Operational Objectives for EAF
Conserve and Manage Species- Target species, assemblages, non-target species, PET* species, biodiversity protection
Minimize Bycatch- target, non-target & PET species, and minimize waste
Manage Tradeoffs- among fisheries sectors, optimize fishery benefits,prevent sequential depletion/effort transfer, usemanagement processes that are fair, equitable and
transparent, consider cumulative impacts, evaluate impacts of non-fishery sectors, include diverse stakeholder views
* PET = Protected, Endangered or Threatened Species
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Goal
Non-Resource Species: Barndoor Skate
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Candidate Objectives for EAF, continued…
Account for Feedback Effects- predator-prey relationships, gear impacts on habitat
productivity, irreversibility of fishing impacts, harvesting-induced regime change
Establish Appropriate Ecosystem Boundaries- allows for interconnections between adjacent
ecosystems, allows for imports and exports, includes multiple spatial scales depending on issue
Maintain Ecosystem Productivity, Balance Ecosystem Structure
- evaluate ecosystem carrying capacity, maintain resilience/resistance to perturbations, attain
trophic balance
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Phytoplankton
Zooplankton
Forage Fish
Piscivores
Apex Predators
Humans
The Trophic Pyramid and Energy Flow
1000 units
100 units
10 units
1 unit
0.1 unit
0.01 unit
If transfer efficiency is 10%-5-
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Spatial Scales & Boundaries
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Scales and Observations
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Candidate Objectives for EAF, continued.
Account for Climate Variability- low-frequency variation (decadal scale
changes), High-frequency variation (year-to- year or more frequent), climate-based regime change
Use Adaptive Approaches to Management- consider multiple causes for observed
changes and sources of uncertainty in assessment & prediction, reverse burden of proof where consequences are great, imbed experiments in management approaches to increase ecosystem knowledge
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Regional Climatology Affects Ecosystems
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Interactions Between Physical &Biological Components of Ecosystems
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Known
Unknown
Unknowable
Surface Production & Dynamics
Status of Major Species
Number of Species inthe Oceans
Structure of “pristine” ecosystems
3-D Structure of SelectedOcean Environments
Evolutionary effectsof human activitiesSynoptic Maps of the
Sea Floor
Food-web and particle size models
Valuing EcosystemGoods & Services
Climate Variation effects onspecies & ecosystems
Spatially-explicit models ofpredator-prey systems
Status of all “important” species
Mapping of Habitats
Predictive models ofmany-species interactions
NutrientEnrichment & Toxics
Reversibility ofHuman impacts
Adapting to Knowledge
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In FY04, Congress allocated ~$2 million for NOAA-In FY04, Congress allocated ~$2 million for NOAA-Fisheries to conduct ecosystem management pilot Fisheries to conduct ecosystem management pilot projects in four regions:projects in four regions:
New England New England Mid-AtlanticMid-Atlantic South AtlanticSouth Atlantic Gulf of MexicoGulf of Mexico
Report language from the Senate further explains - Report language from the Senate further explains - ““The pilots purposely cover bodies of water that are contiguous, The pilots purposely cover bodies of water that are contiguous,
because the one influences the others. “because the one influences the others. “
““Ultimately, should the pilots prove successful, the Committee would Ultimately, should the pilots prove successful, the Committee would expect to fold more specific initiatives into the larger ecosystem approach.”expect to fold more specific initiatives into the larger ecosystem approach.”
““NMFS is directed to report to the Committees on Appropriations not NMFS is directed to report to the Committees on Appropriations not later than December 1, 2003 on its plans for implementing the pilots.”later than December 1, 2003 on its plans for implementing the pilots.”
Fisheries Ecosystem Pilot ProjectsFisheries Ecosystem Pilot Projects
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National Research Council Study on Ecosystem Effects of Fishing
Terms of Reference• Evaluate the evidence for fishing-induced
ecosystem effects,
• Comment on the quality of data and models available to evaluate long-term ecosystem effects,
• Evaluate the implications of ecosystem effects of fishing for society & science, given uncertainty of information. Focus on characteristics of ecosystems providing sustainable production of goods and services in relation to those from pristine ecosystems,
• Propose appropriate research strategies to better evaluate ecosystem effects of fishing and the provision of policy guidance.
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• Evidence for reversibility of fishing effects• Evidence for ecosystem change due to predator overfishing• Fishing Impacts on System-wide Productivity
- Sequential fishing down trophic levels- Trophic Cascades- Control hypotheses for fishery ecosystems - Fishing-Induced regime change
• Shifting Baselines – pristine, utilized, degraded ecosystems• Global syntheses (& generalities) regarding fishery effects• Effectiveness of MPAs for ecosystem objectives and fishery
management• Adequacy of data, indices & models
National Research Council Study
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Proposed Ecosystem-Based Management Surveyfor the Fisheries Management Councils (Draft
Questions) (1) Is your FMC currently implementing an ecosystem approachto fisheries management? If so, describe how (include pilot projects).
(2) Describe recent management decisions that were based upon the ecosystem approach.
(3) Do existing statutes (e.g., MSFCMA, NEPA) provide sufficient authority for your FMC to implement fully an ecosystem approach to fisheries management?
(4) What other limitations or restrictions do the Councils have with regard to managing their fisheries using ecosystem principles? -10-
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Proposed Ecosystem-Based Management Survey (cont.)
(5) What kinds of data or information are lacking that would be required for your FMC to implement an ecosystem approach?
(6) What steps should your FMC take next to fully implement an ecosystem approach to fisheries?
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Why?
What?
How?
Who?
When?
Our Next Steps… Discussion on the Merits ofGuidelines/Guidance for EAF