@prefix dcat: . @prefix dct: . @prefix foaf: . @prefix gsp: . @prefix locn: . @prefix xsd: . a dcat:Dataset ; dct:description """This survey was undertaken by Cefas as part of the Blackwater Herring Survey (FSS: INA K HER); A series of cruises carried out from 1989 to 2009 each November on the INA-K in the Thames Estuary. The aims of which were to assess the state of herring ( *Clupea harengus* ) stocks through measurements of length samples and by ageing a stratified selection of fish. The latter was also to determine the stock split between North Sea and Thames fish as there is a great deal of mixing of stocks in the area. Stock identification was done by a combination of first year growth observed in the otolith and the maturity stage of the fish. Survey took place between 11/11/1999 and 22/11/1999 on INA K Equipment used during this survey : - Larson Sprat Trawl Survey operations were undertaken on 36 stations 9 different species were caught on this survey """ ; dct:identifier "CEFAS3D5B156B-5445-4800-BFD4-F71B92442247" ; dct:issued "2016-06-15T11:40:59.195182"^^xsd:dateTime ; dct:modified "2021-05-19T09:05:36.855110"^^xsd:dateTime ; dct:publisher ; dct:spatial [ a dct:Location ; locn:geometry "POLYGON ((2.0000 51.2500, 0.0000 51.2500, 0.0000 52.0000, 2.0000 52.0000, 2.0000 51.2500))"^^gsp:wktLiteral, "{\"type\": \"Polygon\", \"coordinates\": [[[2, 51.25], [0, 51.25], [0, 52], [2, 52], [2, 51.25]]]}"^^ ] ; dct:title "1999 - 1999 Centre for Environment, Fisheries & Aquaculture Science (Cefas) Survey : INA K 1/99 (part of Blackwater Herring Survey (FSS: INA K HER))" ; dcat:distribution . a dcat:Distribution ; dct:description "Resource locator" ; dct:issued "2021-05-19T09:05:37.142510"^^xsd:dateTime ; dct:modified "2021-05-19T09:05:37.142510"^^xsd:dateTime ; dcat:accessURL . a foaf:Organization ; foaf:name "Centre for Environment, Fisheries & Aquaculture Science" .