ECOSYSTEM/HABITAT RESTORATION AND FISHERIES …2) Ecosystem-Based Fisheries Management (EBFM) has...
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ECOSYSTEM/HABITAT RESTORATION AND FISHERIES MANAGEMENT Howard Townsend NOAA/NMFS/HC/CBPO GoM Hypoxia/Diversions Workshop July 14-16, 2014 – Stennis Space Ctr
Transcript of ECOSYSTEM/HABITAT RESTORATION AND FISHERIES …2) Ecosystem-Based Fisheries Management (EBFM) has...
ECOSYSTEM/HABITAT
RESTORATION AND
FISHERIES
MANAGEMENT
Howard TownsendNOAA/NMFS/HC/CBPO
GoM Hypoxia/Diversions WorkshopJuly 14-16, 2014 – Stennis Space Ctr
Marine Ecosystems Face Many Pressures
Fisheries Management process
Research surveyAbundance data
Commercial fisheryCatch data
Biological data:Catch at age, size
Life history
Plan TeamReview
Initial ABC OFL
Advisory PanelInitial TAC
Scientific & StatisticalCommittee
Final ABC OFL
Final TAC specifications
Publicinput
Publicinput
Stockassessment
FisheryManagement Council
Z = F + MM=0.2
Recruitment
GrowthFishing
mortality
Natural
mortality
In-Migration Out-Migration
Recruit-
ment
Fishing
mortality
Natural
mortalityGrowth
In-Migration
Out-Migration
Predation
Processes that control fish population levels
Habitat & Climate
Z = F + M
1) Ecosystem-Based Management (EBM)multiple ocean use sectors are discussed and strategic decisions made as to various tradeoffs among sectors
2) Ecosystem-Based Fisheries Management (EBFM)
has facets of both strategic & tactical decisions solely within the fisheries sector
3) Ecosystem Approach to Fisheries (EAF)adds ecosystem factors into fisheries stock assessments for tactical management decisions
Levels of Marine Ecosystem Management (Fisheries)
Based on: Ihde & Townsend. 2013.
Interview with Jason Link.
Fisheries 38(8) 363-369.Z
Levels Of Ecological Model Use To Inform LMR Management
Heuristic Understanding Ecosystem
Functioning Relative Importance of
Different Processes Advancing Scientific Theory
Strategic Assessing Biomass Tradeoffs System Level Emergent
Properties & RPs Evaluating Alternate Stable
States Cumulative Impacts on Non-
Target Species, Habitat General “What If” Scenarios
and Gaming, Long Term Trends
Time-scale: Decades
Tactical Revised Stock Assessments Yield Adjustments Altered Biological Reference
Points, etc. Specific Impacts on Non-
Target Species, Habitat Specific “What If” Scenarios
and Gaming Time-scale: 1-5 years
Spectrum of Modeling For LMR MgmtProcess
SimpleStatistical Models
Stock Assessment Models
AdvancedStatistical Models
Multi-species Models
Stock Assessment Models/ w external factors
MS Models w/ External Factors
BiomassDynamicsModels
True Ecosystem Models
Oceanographic/Hydrodynamic Models
Maps with Integrated Biological and Physical Data
Gadids
FlatfishPelagics
Tradeoffs
Least Stringent ScenarioPartial TMDL goals met100% TMDL goals metStatus quo
0
1
2
3
4
5
6
7
Socioeconomic
$
EBFM
Habitat
Striped Bass
Menhaden
Alosines
Blue Crab
Oysters
For Illustrative Purposes Only -- Not Based on Actual Modeling Results
EXTRA SLIDES
NOAA Chesapeake Bay Office – Ecosystem Modeling Team
Chesapeake Atlantis Model
012
34
56
7
EBFM
Habitat
Striped Bass
Menhaden
Alosines
Blue Crab
Oysters$
Socioeconomic
TradeoffsCAM Output
20 year Simulation
0
2
4
6
8
10
12
0
2
4
6
8
10
MD
VA
For Illustrative Purposes Only -- Not Based on Actual Modeling Results
Striped Bass
EBFM
Habitat Menhaden
Alosines
Blue Crab
Oysters$
Socioeconomic
EBFM
Habitat
Striped Bass
Menhaden
Alosines
Blue Crab
Oysters$
Socioeconomic
TradeoffsCAM Output
20 year Simulation
For Illustrative Purposes Only -- Not Based on Actual Modeling Results
024681012
0246810
0
510
15
024681012
Potomac
Rappahannock
York
James
Mid-Bay
0
5
10
15
Lower-Bay
0
5
10
15
Focus areas:
024681012
0
510
15
Choptank
Nanticoke
Susquehanna/Upper-Bay
024681012
AtlantisManagement Strategy Evaluation (MSE)
PERFORMANCEMEASURES
DEFINEOBJECTIVES
Biophysical
Industry
Monitoring
Assessment
Implementation
Management
Simulation CycleManager Roles
Modified from E. Fulton
NOAA Chesapeake Bay Office – Ecosystem Modeling Team
AtlantisManagement Strategy Evaluation (MSE)
PERFORMANCEMEASURES
DEFINEOBJECTIVES
Biophysical
Industry
Monitoring
Assessment
Implementation
Management
Simulation CycleManager Roles
Modified from E. Fulton
NOAA Chesapeake Bay Office – Ecosystem Modeling Team
AtlantisManagement Strategy Evaluation (MSE)
PERFORMANCEMEASURES
DEFINEOBJECTIVES
Biophysical
Industry
Monitoring
Assessment
Implementation
Management
Simulation CycleManager Roles
Modified from E. Fulton
NOAA Chesapeake Bay Office – Ecosystem Modeling Team
AtlantisManagement Strategy Evaluation (MSE)
PERFORMANCEMEASURES
DEFINEOBJECTIVES
Biophysical
Industry
Monitoring
Assessment
Implementation
Management
Simulation CycleManager Roles
NOAA Chesapeake Bay Office – Ecosystem Modeling Team
Modified from E. Fulton
