assessing the state of stocks challenges and opportunities

BlueBRIDGE receives funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No. 675680 www.bluebridge-vres.eu

Assessing the state of stocks: challenges and opportunitiesScott Large, International Council for the Exploration of the Sea (ICES)[email protected]@nucellagrande

“Towards innovative data services for Blue Growth” workshop

18 May 2016, Turku, FinlandEuropean Maritime Day 2016

#EMD2016

mailto:[email protected]

05/03/2023 "Towards innovative data services for Blue Growth" workshop 18 May 2016, Turku, Finland

2

The International Council for the Exploration of the Sea

• Role in BlueBRIDGE – develop VREs under BlueASSESSMENT Pillar


3

Background Experience• ICES provides advice on the

sustainable use of living marine resources and protection of the marine environment.• Fishing opportunities – for >225 fish

stocks across the northeast Atlantic• Ecosystem Overviews• Fishery Overviews• Technical Services


4

Scientific and Technical Challenges

• Ecosystem approach to management

• Increasing need for high powered computing:• Ecosystem models• Mixed-fisheries models• Single-stock forecasts• Management strategy

evaluations


5

Scientific and Technical Challenges

• Ecosystem understanding required for marine management

• Universal tools to support management action are being developed, but broad implementation is challenging

• Within the EU• FAO, ICCAT, National Governments, and etc.


6

Use cases

• Horse makerel (Trachurus trachurus) Management Strategy Evaluation (MSE)• José de Oliviera - CEFAS

• North Sea Multi-fleet, mixed-fishery model (MS-model)• Robert Thorpe - CEFAS

FAO

Thorpe et al 2015


7

MSE

• Identify robust harvest control rules• Maximize economic and sustainable yield

FAO


8

MS-model

• Identify trade-offs among fished species and between yield and ecosystem characteristics

• Ensemble approach provides uncertainty intervals for management

Thorpe et al 2015

Thorpe et al 2016


9

Outcomes

• Facilitate ICES advisory process• Improve the tools managers use to make

decisions• «Sand box» for model development and

exploration of parameter settings• State of the art models for training, education,

and dissemination to other interested users


10

Future Steps

• VRE production will begin in June 2016 and first version will be available by autumn

• Expand MSE and MS-model for additional stocks and regions

• Additonal VREs for mixed-fisherys, data limited stock assessment, single-species forecasting are also in development.

Thank you

BlueBRIDGE receives funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No. 675680

www.bluebridge-vres.eu

@BlueBridgeVREs [email protected]

assessing the state of stocks challenges and opportunities

Data & Analytics