Identification

Title

1991 - 2017 Centre for Environment, Fisheries & Aquaculture Science (Cefas) Management Strategy Evaluation toolkit for Ecopath with Ecosim (model output and technical report)

Abstract

This dataset consists of output from a computer model that predicts responses of 69 functional groups from plankton to whales to changing fishing pressure. Scenarios are run using the newly built plug-in (see report) that allows for an assessment of the effect of model parameter uncertainty. The base model is the ICES key-run of EwE for the North Sea described here `http://data.cefas.co.uk/#/View/2847`_ . Format of the data: Zipped csv files covering the hindcast period 1991-2013 (inclusive) with 20 year forecasts. Output includes annual average values for the whole North Sea: For both functional groups and fishing fleets: landings (tonnage and value, £), discards (tonnage),for functional groups only: biomass (tonnage) and fishing mortality (split by landings and discards), for fishing fleets only: fishing effort relative to 1990. Also identified are 'choke species' that lead to closure of fisheries. The report (pdf) describes the development of a tool for assessing the effect of model parameter uncertainty on the performance of management options simulated using an ecosystem model. It provides the rationale, description of methods and algorithms, and a step-by-step guide for users of the tool. While the interface of the tool is designed to be user friendly, the setup of input files and its application requires a thorough understanding of the parameterisation of Ecopath models, advanced experience with Ecosim and understanding of Management Strategy Evaluation procedures. .. _`http://data.cefas.co.uk/#/view/2847`: http://data.cefas.co.uk/#/View/2847

Resource type

dataset

Resource locator

http://data.cefas.co.uk/#/View/18782/

function: order

Unique resource identifier

code

CEFAS6d2142a9-03da-4ef1-9ff5-55a7f9e2afbc

codeSpace

http://www.cefas.co.uk/

Dataset language

eng

Spatial reference system

authority code

OGP

code identifying the spatial reference system

urn:ogc:def:crs:EPSG::32600

Classification of spatial data and services

Topic category

planningCadastre

Keywords

Keyword set

keyword value

Keyword set

keyword value

originating controlled vocabulary

title

SeaDataNet P021 parameter discovery vocabulary

reference date

date type

revision

effective date

2011-03-25

Keyword set

keyword value

originating controlled vocabulary

title

GEMET - INSPIRE themes, version 1.0

reference date

date type

publication

effective date

2008-06-01

Geographic location

West bounding longitude

1.73881

East bounding longitude

1.74086

North bounding latitude

52.4595

South bounding latitude

52.4581

Extent

Extent group

authority code

title

SeaVoX Vertical Co-ordinate Coverages

reference date

date type

revision

effective date

2010-05-18

code identifying the extent

Temporal reference

Temporal extent

Begin position

1991-01-01T00:00:00.000Z

End position

2017-07-01T00:00:00.000Z

Dataset reference date

date type

publication

effective date

2017-10-05

Frequency of update

notPlanned

Quality and validity

Lineage

Model data arise from 1000 simulations run to evaluate the European Commissions proposed North Sea Multi-Annual Plan for demersal stocks (EC 2016/0493). The possible impacts of the plan are evaluated in terms of its likely outcomes to achieve management objectives for fishing pressure, species' biomass, fishery yield, the landed value of key species and ecosystem objectives (given change in indicators). Full details are given in Mackinson et al. (in review) and Cefas contract report MF1228 Milestone 1.2 "Contribute to the development of regional long-term management plans based on an ecosystem approach" Christopher Lynam and Steven Mackinson. 12 June 2017.

Conformity

Data format

name of format

version of format

Constraints related to access and use

Constraint set

Use constraints

Contact the Cefas Data Manager for more information

Constraint set

Limitations on public access

Contact the Cefas Data Manager for more information

Responsible organisations

Responsible party

contact position

Data Manager

organisation name

Centre for Environment, Fisheries & Aquaculture Science

full postal address

Cefas Lowestoft Laboratory

Pakefield Road

Lowestoft

NR33 0HT

UK

telephone number

+44 (0)1502 562244

email address

data.manager@cefas.co.uk

responsible party role

originator

Responsible party

contact position

Data Manager

organisation name

Centre for Environment, Fisheries & Aquaculture Science

full postal address

Cefas Lowestoft Laboratory

Pakefield Road

Lowestoft

NR33 0HT

UK

telephone number

+44 (0)1502 562244

email address

data.manager@cefas.co.uk

responsible party role

custodian

Metadata on metadata

Metadata point of contact

contact position

Data Manager

organisation name

Centre for Environment, Fisheries & Aquaculture Science

full postal address

Cefas Lowestoft Laboratory

Pakefield Road

Lowestoft

NR33 0HT

UK

telephone number

+44 (0)1502 562244

email address

data.manager@cefas.co.uk

responsible party role

pointOfContact

Metadata date

2020-09-11T14:06:05

Metadata language

eng