This indicator summarises stock assessment advice for quota fish stocks and national shellfish stocks. The file contains data quantifying annual recruitment, biomass, stock size, landings, catches, discards, industrial bycatch, fishing pressure (fishing pressure mean, ranges, and estimated pressure accountable to landings, discards and bycatch) and stock indicators (Flim fisheries mortality that if exceeded would result in the stock falling below Blim, Blim spawning stock Biomass at the limit reference point, Fpa level of catches that if exceeded would result in the stock falling below Bpa, Bpa spawning stock Biomass in relation to the precautionary approach, Fpa FMSY Maximum sustainable yield, BMSY Maximum sustainable yield biomass trigger) for various fish stocks (fish species in given ICES regions). The following lines indicate a column in the data, with a brief description following each column name: ICES: Did the record originate from ICES? Y or N.AssessmentYear: When was the assessment record created? FishStock: Fish stock code, in older 2016 format. Year: Which year does record relate to StockDescription: Description of species and spatial extent.
ICES Areas (tilde delimited): List ICES areas within this spatial extent. SpeciesName: Latin species name SGName: Common species name Source_Report: Source or report Source: Data source Low_Recruitment: Not used, ICES estimate of lower recruitment Recruitment: Not used, ICES estimate of recruitment High_Recruitment: Not used, ICES estimate of upper recruitment UnitOfRecruitment: Not used, ICES units of recruitment Low_TBiomass: ICES lower estimate of stock biomass TBiomass: ICES estimate of stock biomass High_TBiomass: ICES upper estimate of stock biomass Low_StockSize: ICES lower estimate of stock size StockSize: ICES estimate of stock size
High_StockSize: ICES upper estimate of stock size StockSizeDescription: How has stock size been measured? StockSizeUnits: Units of measurement for stock size
CatchesLadingsUnits: Units of measurement for catches/landings Landings: ICES estimate of landings OfficialLandings : ICES estimate of official landings Catches: ICES estimate of landings Discards ICES estimate of discards IBC: ICES estimate of Industrial Bycatch Unallocated_Removals: Other unallocated removals from stock YieldSSB: Spawning stock biomass Low_FishingPressure: ICES lower estimate of fishing pressure mFishingPressure: ICES estimate of fishing pressure High_FishingPressure: ICES upper estimate of fishing pressure FishingPressureDescription: How has FishingPressure been measured? FishingPressureUnits: Units of measurement for FishingPressure
F_Landings: Fishing pressure from landings F_Discards: Fishing pressure from discards F_IBC: Fishing pressure from industrial bycatch F_Unallocated: Fishing pressure from unallocated sources Flim: Limit reference point for fishing mortality Fpa: Precautionary reference point for fishing mortality Blim: Limit reference point for spawning stock biomass Bpa: Precautionary reference point for spawning stock biomass FMSY: Fishing mortality consistent with achieving MSY FMSY_lower: Lowest fishing mortality consistent with achieving MSY FMSY_middle: 50% point between upper and lower FMSY FMSY_upper: Highest fishing mortality consistent with achieving MSY
MSYBtrigger: Biomass reference point that triggers a cautious response within the ICES MSY framework Fmanagement: Fishing mortality reference point as defined in management plans Bmanagement: Spawning stock biomass (SSB) that results from fishing at FMSY for a long time RecruitmentAge: Age at which recruitment occurs
RecruitmentLength: Length at which recruitment occurs TypeStock: Absolute or relative fishing pressure measurements? Assessment type: How was stock assessed?
Data from a previous revision: Is this historic data (for which there is a new updated assessment) updated FishStock code: Alternative (new 2017) fish stock code
FP.Indicator: Fishing pressure/FMSY factor SSB.Indicator: Stock Size/SSB factor Classification: Demersal or Pelagic fish This indicator summarises stock assessment advice for quota fish stocks and national shellfish stocks. The input data for quota fish stocks arise from the ICES stock assessment database http://standardgraphs.ices.dk/stockList.aspx, while the data for national shellfish stocks arise from Marine Scotland and Cefas assessments, where data are provide per sex per stock both sexes had to be below Fmsy for the status per stock to be considered below Fmsy: Cefas (2015a). Lobster (Homarus gammarus). Stock Status Report 2014. 24 September 2015 https://www.gov.uk/government/publications/lobster-homarus-gammarus-stock-status-report-2014 Cefas (2015b). Edible crab (Cancer pagurus) Stock Status Report 2014. 24 September 2015 https://www.gov.uk/government/publications/edible-crab-cancer-pagurus-stock-status-report-2014 Dobby, H., S. Millar, L. Blackadder, J. Turriff, A. McLay (2012). Scottish Scallop Stocks: Results of 2011 Stock Assessments. Scottish Marine and Freshwater Science Vol 3 No 10. Published by Marine Scotland Science. ISSN: 2043-7722 Mesquita, C., H. Dobby, A McLay (2016) Crab and Lobster Fisheries in Scotland: Results of Stock Assessments 2009 – 2012. Scottish Marine and Freshwater Science Vol 7 No 9. Published by Marine Scotland Science. ISSN: 2043-7722. Mesquita, C., H. Dobby, A McLay (2017) Crab and Lobster Fisheries in Scotland: Results of Stock Assessments 2013 – 2015. Scottish Marine and Freshwater Science Vol 8 No 14. Published by Marine Scotland Science. ISSN: 2043-7722. DOI: 10.7489/1990-1 An excel file “ModifiedUK_ICESFishStockAndShellfishStockAssessment2017_2.xlsx” contains the data in two sheets: (1, “StockAssessment2017”) This file is modified from the ICES stock assessment database. Appended to this is the UK national shellfish stocks data, which were taken from assessment reports provided by Cefas and Marine Scotland. In the dataset, the first column “ICES” identifies those stocks that originate from the ICES stock assessment database with the entry “Y”. (2, SPiCT Stock data2 281117) Dataset of ICES stock assessment model outputs. SPiCT refers to 'Stochastic Production model in Continuous Time', the model used to produce outputs for data limited stocks. These data were not released online by ICES when this data were collated (12/09/2017), but instead downloaded directly by www.stockassessment.org (Casper Berg, DTU-Aqua) to Cefas (Jonathan Gillson) on 08 June 2016.