Marine_Scotland_FishDAC_1922 eng dataset Scottish Government (Marine Scotland) +44 (0)300 244 4000 marinescotland@gov.scot pointOfContact 2017-07-13 MEDIN Discovery Metadata Version 2.3.7 urn:ogc:def:crs:EPSG::4326 OGP Greater North Sea International Otter Trawl Quarter 1 Groundfish Survey Monitoring and Assessment Data Products GNSIntOT1 Groundfish Survey Monitoring and Assessment Data Products NS-IBTS, GNSIntOT1 MSFD Data Product 2017-07-31 publication Marine_Scotland_FishDAC_1922 The Greater North Sea International Quarter 1 Otter Trawl Groundfish Survey Monitoring and Assessment Data resource contains both biological and sampling information. There are two sampling areas a “Full” data set, this includes rectangles that have a poor temporal sampling record. The “SSA” or “Standard Survey Area” sampling area only contains rectangles that have consistent temporal sampling and meet the criteria set out in Moriarty et al, (2017). The “sampling information” contains all the technical information required to describe each individual haul. The “biological information” contains all of the biological information required to describe the species length and weight distributions in each haul. Biological information is further classified by “baseline” data. This data contains a mix of species, genus, and family classifications, with a tag to say if it required further assessment and “null” length values, with a tag to say a length frequency distribution needs to be assigned. The “k-NN” or “k” number of nearest neighbours data has reconciled all of the taxonomic data to the highest resolution possible, and assigned an appropriate length distribution to the sample in question. Product type: • This product is the Full Standard Monitoring Programme it is recommended that you use the Standard Survey Area - Standard Monitoring Programme for any OSPAR related analyses. • This product is the Standard Survey Area - Standard Monitoring Programme this is the recommended product for all analyses. • This product is the baseline/non-resolved biological information, this contains species and length classes that have not been resolved. We recommended use of the knn/resolved product for all analyses. • This product is the knn/resolved product which is recommended for all analyses. Additional information: This data can be freely downloaded according to the Scottish Government data policy. The “sampling information” contains all the technical information required to describe each individual haul. The “biological information” contains all of the biological information required to describe the species length and weight distributions in each haul. Scottish Government (Marine Scotland) +44 (0)300 244 4000 Mailpoint 11, Area 1B South, Victoria Quay Edinburgh EH6 6QQ United Kingdom marinescotland@gov.scot pointOfContact Scottish Government (Marine Scotland) +44 (0)300 244 4000 Mailpoint 11, Area 1B South, Victoria Quay Edinburgh EH6 6QQ United Kingdom marinescotland@gov.scot custodian Scottish Government (Marine Scotland) +44 (0)300 244 4000 Mailpoint 11, Area 1B South, Victoria Quay Edinburgh EH6 6QQ United Kingdom marinescotland@gov.scot distributor Marine Scotland +44 (0)300 244 4000 1B South, Victoria Quay Edinburgh EH6 6QQ United Kingdom marinescotland@gov.scot originator Wageningen University +31317487070 PO Box 68 Ijmuiden Netherlands ingeborg.deboois@wur.nl originator Waeningen Marine Research +31317487070 PO Box 68 Ijmuiden Netherlands ralf.vanhal@wur.nl originator Thünen Institute of Sea Fisheries +49 40 38905 178 Palmaille 9 Hamburg-Altona 22767 Germany sf@thuenen.de originator Marine Scotland +44 (0)300 244 4000 1B South, Victoria Quay Edinburgh United Kingdom marinescotland@gov.scot originator Swedish University of Agricultural Sciences (SLU) +46 0104784013 Havsfiskelaboratoriet, Turistgatan 5 Lysekil 45330 Sweden barbara.bland@slu.se originator Institute of Marine Research +47 902 59 201 Postboks 1870 Nordnes Bergen Norway jennifer.devine@imr.no originator Institute of Marine Research +47 902 59 201 Postboks 1870 Nordnes Bergen Norway trine.haugen@imr.no originator Ifremer +33 03 21 99 56 10 Centre Manche Mer du Nord - 150, Quai Gambetta Boulogne-sur-Mer 62200 France franck.coppin@ifremer.fr. originator Ifremer +33 02 97 87 38 14 Station de Lorient - 8, rue François Toullec Lorient 56100 France michele.salaun@ifremer.fr originator Ifrember Centre Manche Mer du Nord - 150, Quai Gambetta Boulogne-sur-Mer 62200 France Morgane.Travers@ifremer.fr originator Ifremer +33 03 21 99 56 08 Centre Manche Mer du Nord - 150, Quai Gambetta Boulogne-sur-Mer 62200 France Yves.verin@ifremer.fr originator DTU Aqua +45 35 88 32 76 Willemoesvej 2 Hirtshals 9850 Denmark kw@aqua.dtu.dk originator International Council for Exploration of the Sea (ICES) +45 3338 6700 H. C. Andersens Boulevard 44-46 Copenhagen Denmark info@ices.dk originator Not Planned Marine Environmental Data and Information Network Fisheries SeaDataNet Agreed Parameter Groups 2010-10-23 revision Fish abundance in water bodies Fish biomass in water bodies BODC Parameter Discovery Vocabulary 2011-03-25 revision Biological diversity maintained Marine food webs are at normal abundace and diversity Non-indigenous species do not adversly effect ecosystem Marine Strategy Framework Directive descriptors 2010-11-11 revision Open Government License (http://www.nationalarchives.gov.uk/doc/open-government-licence/) otherRestrictions no limitations to public access 55000.00 eng biota oceans -4 13 49.5 62 ICES Rectangles 1910-01-01 creation 44E6 ICES Rectangles 1910-01-01 creation 45E6 ICES Rectangles 1910-01-01 creation 46E6 ICES Rectangles 1910-01-01 creation 47E6 ICES Rectangles 1910-01-01 creation 48E6 ICES Rectangles 1910-01-01 creation 49E6 ICES Rectangles 1910-01-01 creation 41E7 ICES Rectangles 1910-01-01 creation 42E7 ICES Rectangles 1910-01-01 creation 44E7 ICES Rectangles 1910-01-01 creation 45E7 ICES Rectangles 1910-01-01 creation 46E7 ICES Rectangles 1910-01-01 creation 47E7 ICES Rectangles 1910-01-01 creation 48E7 ICES Rectangles 1910-01-01 creation 49E7 ICES Rectangles 1910-01-01 creation 50E7 ICES Rectangles 1910-01-01 creation 39E8 ICES Rectangles 1910-01-01 creation 40E8 ICES Rectangles 1910-01-01 creation 41E8 ICES Rectangles 1910-01-01 creation 42E8 ICES Rectangles 1910-01-01 creation 43E8 ICES Rectangles 1910-01-01 creation 44E8 ICES Rectangles 1910-01-01 creation 45E8 ICES Rectangles 1910-01-01 creation 46E8 ICES Rectangles 1910-01-01 creation 47E8 ICES Rectangles 1910-01-01 creation 48E8 ICES Rectangles 1910-01-01 creation 49E8 ICES Rectangles 1910-01-01 creation 50E8 ICES Rectangles 1910-01-01 creation 51E8 ICES Rectangles 1910-01-01 creation 30E9 ICES Rectangles 1910-01-01 creation 37E9 ICES Rectangles 1910-01-01 creation 38E9 ICES Rectangles 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creation 42F0 ICES Rectangles 1910-01-01 creation 43F0 ICES Rectangles 1910-01-01 creation 44F0 ICES Rectangles 1910-01-01 creation 45F0 ICES Rectangles 1910-01-01 creation 46F0 ICES Rectangles 1910-01-01 creation 47F0 ICES Rectangles 1910-01-01 creation 48F0 ICES Rectangles 1910-01-01 creation 49F0 ICES Rectangles 1910-01-01 creation 50F0 ICES Rectangles 1910-01-01 creation 51F0 ICES Rectangles 1910-01-01 creation 52F0 ICES Rectangles 1910-01-01 creation 28F1 ICES Rectangles 1910-01-01 creation 29F1 ICES Rectangles 1910-01-01 creation 30F1 ICES Rectangles 1910-01-01 creation 31F1 ICES Rectangles 1910-01-01 creation 32F1 ICES Rectangles 1910-01-01 creation 33F1 ICES Rectangles 1910-01-01 creation 34F1 ICES Rectangles 1910-01-01 creation 35F1 ICES Rectangles 1910-01-01 creation 36F1 ICES Rectangles 1910-01-01 creation 37F1 ICES Rectangles 1910-01-01 creation 38F1 ICES Rectangles 1910-01-01 creation 39F1 ICES Rectangles 1910-01-01 creation 40F1 ICES Rectangles 1910-01-01 creation 41F1 ICES Rectangles 1910-01-01 creation 42F1 ICES Rectangles 1910-01-01 creation 43F1 ICES Rectangles 1910-01-01 creation 44F1 ICES Rectangles 1910-01-01 creation 45F1 ICES Rectangles 1910-01-01 creation 46F1 ICES Rectangles 1910-01-01 creation 47F1 ICES Rectangles 1910-01-01 creation 48F1 ICES Rectangles 1910-01-01 creation 49F1 ICES Rectangles 1910-01-01 creation 50F1 ICES Rectangles 1910-01-01 creation 51F1 ICES Rectangles 1910-01-01 creation 52F1 ICES Rectangles 1910-01-01 creation 31F2 ICES Rectangles 1910-01-01 creation 32F2 ICES Rectangles 1910-01-01 creation 33F2 ICES Rectangles 1910-01-01 creation 34F2 ICES Rectangles 1910-01-01 creation 35F2 ICES Rectangles 1910-01-01 creation 36F2 ICES Rectangles 1910-01-01 creation 37F2 ICES Rectangles 1910-01-01 creation 38F2 ICES Rectangles 1910-01-01 creation 39F2 ICES Rectangles 1910-01-01 creation 40F2 ICES Rectangles 1910-01-01 creation 41F2 ICES Rectangles 1910-01-01 creation 42F2 ICES Rectangles 1910-01-01 creation 43F2 ICES Rectangles 1910-01-01 creation 44F2 ICES Rectangles 1910-01-01 creation 45F2 ICES Rectangles 1910-01-01 creation 46F2 ICES Rectangles 1910-01-01 creation 47F2 ICES Rectangles 1910-01-01 creation 48F2 ICES Rectangles 1910-01-01 creation 49F2 ICES Rectangles 1910-01-01 creation 50F2 ICES Rectangles 1910-01-01 creation 51F2 ICES Rectangles 1910-01-01 creation 31F3 ICES Rectangles 1910-01-01 creation 32F3 ICES Rectangles 1910-01-01 creation 33F3 ICES Rectangles 1910-01-01 creation 34F3 ICES Rectangles 1910-01-01 creation 35F3 ICES Rectangles 1910-01-01 creation 36F3 ICES Rectangles 1910-01-01 creation 37F3 ICES Rectangles 1910-01-01 creation 38F3 ICES Rectangles 1910-01-01 creation 39F3 ICES Rectangles 1910-01-01 creation 40F3 ICES Rectangles 1910-01-01 creation 41F3 ICES Rectangles 1910-01-01 creation 42F3 ICES Rectangles 1910-01-01 creation 43F3 ICES Rectangles 1910-01-01 creation 44F3 ICES Rectangles 1910-01-01 creation 45F3 ICES Rectangles 1910-01-01 creation 46F3 ICES Rectangles 1910-01-01 creation 47F3 ICES Rectangles 1910-01-01 creation 48F3 ICES Rectangles 1910-01-01 creation 49F3 ICES Rectangles 1910-01-01 creation 50F3 ICES Rectangles 1910-01-01 creation 33F4 ICES Rectangles 1910-01-01 creation 34F4 ICES Rectangles 1910-01-01 creation 35F4 ICES Rectangles 1910-01-01 creation 36F4 ICES Rectangles 1910-01-01 creation 37F4 ICES Rectangles 1910-01-01 creation 38F4 ICES Rectangles 1910-01-01 creation 39F4 ICES Rectangles 1910-01-01 creation 40F4 ICES Rectangles 1910-01-01 creation 41F4 ICES Rectangles 1910-01-01 creation 42F4 ICES Rectangles 1910-01-01 creation 43F4 ICES Rectangles 1910-01-01 creation 44F4 ICES Rectangles 1910-01-01 creation 45F4 ICES Rectangles 1910-01-01 creation 35F5 ICES Rectangles 1910-01-01 creation 36F5 ICES Rectangles 1910-01-01 creation 37F5 ICES Rectangles 1910-01-01 creation 38F5 ICES Rectangles 1910-01-01 creation 39F5 ICES Rectangles 1910-01-01 creation 40F5 ICES Rectangles 1910-01-01 creation 41F5 ICES Rectangles 1910-01-01 creation 42F5 ICES Rectangles 1910-01-01 creation 43F5 ICES Rectangles 1910-01-01 creation 44F5 ICES Rectangles 1910-01-01 creation 36F6 ICES Rectangles 1910-01-01 creation 37F6 ICES Rectangles 1910-01-01 creation 38F6 ICES Rectangles 1910-01-01 creation 39F6 ICES Rectangles 1910-01-01 creation 40F6 ICES Rectangles 1910-01-01 creation 41F6 ICES Rectangles 1910-01-01 creation 42F6 ICES Rectangles 1910-01-01 creation 43F6 ICES Rectangles 1910-01-01 creation 36F7 ICES Rectangles 1910-01-01 creation 37F7 ICES Rectangles 1910-01-01 creation 38F7 ICES Rectangles 1910-01-01 creation 39F7 ICES Rectangles 1910-01-01 creation 40F7 ICES Rectangles 1910-01-01 creation 41F7 ICES Rectangles 1910-01-01 creation 42F7 ICES Rectangles 1910-01-01 creation 43F7 ICES Rectangles 1910-01-01 creation 36F8 ICES Rectangles 1910-01-01 creation 37F8 ICES Rectangles 1910-01-01 creation 38F8 ICES Rectangles 1910-01-01 creation 39F8 ICES Rectangles 1910-01-01 creation 43F8 ICES Rectangles 1910-01-01 creation 44F8 ICES Rectangles 1910-01-01 creation 43F9 ICES Rectangles 1910-01-01 creation 44F9 ICES Rectangles 1910-01-01 creation 45F9 ICES Rectangles 1910-01-01 creation 41G0 ICES Rectangles 1910-01-01 creation 43G0 ICES Rectangles 1910-01-01 creation 44G0 ICES Rectangles 1910-01-01 creation 45G0 ICES Rectangles 1910-01-01 creation 46G0 ICES Rectangles 1910-01-01 creation 41G1 ICES Rectangles 1910-01-01 creation 42G1 ICES Rectangles 1910-01-01 creation 43G1 ICES Rectangles 1910-01-01 creation 44G1 ICES Rectangles 1910-01-01 creation 45G1 ICES Rectangles 1910-01-01 creation 46G1 ICES Rectangles 1910-01-01 creation 40G2 ICES Rectangles 1910-01-01 creation 41G2 ICES Rectangles 1910-01-01 creation 42G2 ICES Rectangles 1910-01-01 creation 43G2 SeaDataNet vertical extent keywords 2010-01-01 revision The entire body of water between the bed and the atmosphere. 1983-01-01 2017-04-01 https://dx.doi.org/10.7489/1922-1 DOI:https://dx.doi.org/10.7489/1922-1 Marine Scotland Internal Data Storage offlineAccess dataset The GNSIntOT1 is one of the longer time series, beginning in 1983 and ending in 2017. Moriarty and Greenstreet (2017) detail the survey’s history. Data quality statement: This data product has undergone rigorous quality checking, as outlined in the supporting documentation (Moriarty et al, 2017; Greenstreet et al 2017). It is suitable for supporting OSPAR fish community assessments and additional indicator research and development. Data source: Data was sourced on the Database of Trawl Surveys (DATRAS) housed by ICES, this data is traditionally used for stock assessments and fish community studies by the ICES community and public users. The ICES data have to pass an extensive quality check. Collection methods: The data was collected by various nations during the North Sea Groundfish Survey (NS-IBTS) coordinated by the International Bottom Trawl Survey Working Group. Data processing methods: While DATRAS has an integrated quality check, it was necessary to do a more extensive quality check and estimate certain values when data was not originally collected. The processing methods are fully outlined in Moriarty et al (2017). Data Interoperability: Sampling Information Field -Unit- Description HaulID - - Unique haul identifier (SurveyAcronym/Ship/Year/HaulNo) (H) Survey-Acronym - - Unique survey identifier (SubregionCountryGearTypeQuarter: e.g. GNSNedBT3) Ship - - Unique vessel identifier (e.g. SCO3: Scotia III) GearType - - Unique gear type code (BT = Beam Trawl, OT = Otter Trawl) Gear - - Unique gear code (e.g. GOV = Grande Oerverture Verticale) YearShot - - Year that gear was shot MonthShot - - Month that gear was shot DayShot - - Day that gear was shot TimeShot -GMT- Time that gear was shot (in format HHMM) HaulDur(min) -Min- Duration of fishing operation ShootLat(decdeg) -Deg.- Latitude in decimal degrees of the haul shoot position ShootLong(decdeg) -Deg.- Longitude in decimal degrees of the haul shoot position ICESStSq - - ICES statistical rectangle where gear was shot SurvStratum - - Stratum tag for stratified surveys Depth(m) -m- Depth tag assigned to the haul Distance(km) -km- Tow distance (dH,TOW) WingSpread(m) -m- Mean distance between the wings during fishing operation(dH,WING) DoorSpread(m) -m- Mean distance between the doors during fishing operation (dH,DOOR) NetOpen(m) -m- Mean head-line height above seabed during fishing operation (dH,HEIGHT) WingSwptArea(sqkm) -km2 - Area of seabed swept by the net (AH,WING = dH,TOW x dH,WING) WingSwptVol_CorF - - Multiplier (1 / dH,HEIGHT): converts to ‘density by wing-swept volume DoorSwptArea_CorF - - Multiplier (dH,WING / dH,DOOR): converts to ‘density by door-swept area DoorSwptVol_CorF - - Multiplier (dH,WING / (dH,DOOR x dH,HEIGHT)): converts to ‘density by door-swept volume Biological Information There are two Biological Information data products, ‘BaseLine’ and ‘KNN’. In ‘Baseline’ the k-NN procedure has not been applied, so densities-at-length of species complexes (e.g. genus, family or order taxonomic resolution level identifications codes) have not been resolved to the complexes constituent species, densities of a species where length data are not provided have not been resolved to their constituent length categories, and destinies of species complexes have not been resolved to their constituent species and length categories. In ‘KNN’ the k-NN procedure has been applied to address these three type of problem. Consequently the ‘KNN’ data product will have more records that the ‘Baseline’ data product and some fields are not relevant to the ‘Baseline’ data product. The ‘KNN’ data product will have the following structure. Field-Unit-Description HaulID- -Unique haul identifier (SurveyAcronym/Ship/Year/HaulNo) (H) SpeciesSciName- -Unique species name for each species sampled across the NE Atlantic (S) FishLength(cm)-cm-Integer numbers indicating fish length to the ‘cm below’ (L) IndivFishWght(g)-g-Estimated weight of individual fish of specified species and length (WS,L) Number- -Total number of fish of specified species and length in the catch (NS,L,H) DensAbund(N_sqkm)-km-2-Abundance density estimate (Dnos,S,L,H = NS,L,H / AH,WING) DensBiom(kg_Sqkm)-kg km-2-Biomass density estimate (Dbiom,S,L,H = (NS,L,H x WS,L)/ AH,WING) The ‘BaseLine’ product will not include the fields IndivFishWght(g) and DensBiom(kg_Sqkm), and the field SpeciesSciName will simply be called SciName. The two fields are excluded because with uncertain species identities it would not be possible to consistently include data for the field IndivFishWght(g), and in addition with uncertainty regarding length category, estimation of appropriate reliable values for the field DensBiom(kg_Sqkm) would also not always be possible. The ‘BaseLine’ data product was included because of feedback from data providers and potential data users, who stated that they would prefer having access the “real” data, rather than rely on estimated values to