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