Blackwater Herring Survey (FSS: INA K HER) dataset https://portal.medin.org.uk/portal/start.php?tpc=009_CEFAS48766e5a-9abc-4211-86d6-d424fbc87579 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. The Blackwater Herring survey report can be downloaded from this record. `Survey : INA K 1/89 (part of Blackwater Herring Survey (FSS: INA K HER))`_ `Survey : INA K 1/91 (part of Blackwater Herring Survey (FSS: INA K HER))`_ `Survey : INA K 1/92 (part of Blackwater Herring Survey (FSS: INA K HER))`_ `Survey : INA K 1/93 (part of Blackwater Herring Survey (FSS: INA K HER))`_ `Survey : INA K 1/94 (part of Blackwater Herring Survey (FSS: INA K HER))`_ `Survey : INA K 1/95 (part of Blackwater Herring Survey (FSS: INA K HER))`_ `Survey : INA K 1/96 (part of Blackwater Herring Survey (FSS: INA K HER))`_ `Survey : INA K 3/97 (part of Blackwater Herring Survey (FSS: INA K HER))`_ `Survey : INA K 2/98 (part of Blackwater Herring Survey (FSS: INA K HER))`_ `Survey : INA K 1/99 (part of Blackwater Herring Survey (FSS: INA K HER))`_ `Survey : INA K 1/00 (part of Blackwater Herring Survey (FSS: INA K HER))`_ `Survey : INA K 2/01 (part of Blackwater Herring Survey (FSS: INA K HER))`_ `Survey : INA K 1/02 (part of Blackwater Herring Survey (FSS: INA K HER))`_ `Survey : INA K 1/03 (part of Blackwater Herring Survey (FSS: INA K HER))`_ `Survey : INA K 2/04 (part of Blackwater Herring Survey (FSS: INA K HER))`_ `Survey : INA K 2/05 (part of Blackwater Herring Survey (FSS: INA K HER))`_ `Survey : INA K 1/06 (part of Blackwater Herring Survey (FSS: INA K HER))`_ `Survey : INA K 1/08 (part of Blackwater Herring Survey (FSS: INA K HER))`_ `Survey : INA K 1/09 (part of Blackwater Herring Survey (FSS: INA K HER))`_ .. _`survey : ina k 1/89 (part of blackwater herring survey (fss: ina k her))`: https://data.cefas.co.uk/view/10080 .. _`survey : ina k 1/91 (part of blackwater herring survey (fss: ina k her))`: https://data.cefas.co.uk/view/10083 .. _`survey : ina k 1/92 (part of blackwater herring survey (fss: ina k her))`: https://data.cefas.co.uk/view/10084 .. _`survey : ina k 1/93 (part of blackwater herring survey (fss: ina k her))`: https://data.cefas.co.uk/view/10085 .. _`survey : ina k 1/94 (part of blackwater herring survey (fss: ina k her))`: https://data.cefas.co.uk/view/10086 .. _`survey : ina k 1/95 (part of blackwater herring survey (fss: ina k her))`: https://data.cefas.co.uk/view/10087 .. _`survey : ina k 1/96 (part of blackwater herring survey (fss: ina k her))`: https://data.cefas.co.uk/view/10088 .. _`survey : ina k 3/97 (part of blackwater herring survey (fss: ina k her))`: https://data.cefas.co.uk/view/10097 .. _`survey : ina k 2/98 (part of blackwater herring survey (fss: ina k her))`: https://data.cefas.co.uk/view/10095 .. _`survey : ina k 1/99 (part of blackwater herring survey (fss: ina k her))`: https://data.cefas.co.uk/view/10089 .. _`survey : ina k 1/00 (part of blackwater herring survey (fss: ina k her))`: https://data.cefas.co.uk/view/10065 .. _`survey : ina k 2/01 (part of blackwater herring survey (fss: ina k her))`: https://data.cefas.co.uk/view/10091 .. _`survey : ina k 1/02 (part of blackwater herring survey (fss: ina k her))`: https://data.cefas.co.uk/view/10069 .. _`survey : ina k 1/03 (part of blackwater herring survey (fss: ina k her))`: https://data.cefas.co.uk/view/10073 .. _`survey : ina k 2/04 (part of blackwater herring survey (fss: ina k her))`: https://data.cefas.co.uk/view/10093 .. _`survey : ina k 2/05 (part of blackwater herring survey (fss: ina k her))`: https://data.cefas.co.uk/view/10094 .. _`survey : ina k 1/06 (part of blackwater herring survey (fss: ina k her))`: https://data.cefas.co.uk/view/10074 .. _`survey : ina k 1/08 (part of blackwater herring survey (fss: ina k her))`: https://data.cefas.co.uk/view/10077 .. _`survey : ina k 1/09 (part of blackwater herring survey (fss: ina k her))`: https://data.cefas.co.uk/view/10078 20141204 20111007