CEFAS6d2142a9-03da-4ef1-9ff5-55a7f9e2afbc English dataset Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory (CEFAS) Cefas Lowestoft Laboratory Pakefield Road Lowestoft Suffolk NR33 0HT UK data.manager@cefas.co.uk pointOfContact 2025-04-17T01:01:56 EPSG Geodetic Parameter Registry 2022-01-07 revision 32600 Management Strategy Evaluation toolkit for Ecopath with Ecosim (model output and technical report) 2017-10-05 publication 2025-04-17 revision 2017-10-04 creation CEFAS18782 https://data.cefas.co.uk 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 Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory (CEFAS) Cefas Lowestoft Laboratory Pakefield Road Lowestoft Suffolk NR33 0HT UK data.manager@cefas.co.uk originator Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory (CEFAS) Cefas Lowestoft Laboratory Pakefield Road Lowestoft Suffolk NR33 0HT UK data.manager@cefas.co.uk custodian Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory (CEFAS) Cefas Lowestoft Laboratory Pakefield Road Lowestoft Suffolk NR33 0HT UK data.manager@cefas.co.uk distributor Department for Environment, Food and Rural Affairs (DEFRA) defra.helpline@defra.gov.uk owner European Commission info@publications.europa.eu owner notPlanned Fish Fisheries SeaDataNet P03 parameter discovery vocabulary 2011-03-25 revision Fish biomass in water bodies Fishing by-catch SeaDataNet P02 parameter discovery vocabulary 2011-03-25 revision Species distribution GEMET - INSPIRE themes, version 1.0 2008-06-01 publication Unknown SeaVoX Vertical Co-ordinate Coverages 2010-05-18 revision Marine Environmental Data and Information Network MEDIN metadata record availability 2012-01-11 publication data.gov.uk MEDIN metadata record availability 2012-01-11 publication otherRestrictions noLimitations otherRestrictions Public data - no limitations to reuse English biota 1.73881 1.74086 52.4581 52.4595 1991-01-01 2017-07-01 Binary Unknown https://data.cefas.co.uk/view/18782 Cefas Data Portal download The Cefas Data Portal contains metadata records and data sets available to download and connect to in support of our commitment to open science. Data is available in the following formats: Binary download. dataset INSPIRE Data Specification on Species Distribution – Technical Guidelines 2013-12-10 publication false See the referenced specification Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services 2010-12-08 publication true See the referenced specification 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. MEDIN 3.1.1