Survey : INA K 1/94 (part of Blackwater Herring Survey (FSS: INA K HER))

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Marine Environmental Data & Information Network
Last updated:
10 July 2024
Topic:
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Summary

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 07/11/1994 and 18/11/1994 on INA K

Equipment used during this survey :

  • Larson Sprat Trawl

Survey operations were undertaken on 34 stations

12 different species were caught on this survey

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Data links

Link to the data Format File added Data preview
Cefas Data Portal N/A 10 July 2024 Not available

Additional information

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Added to data.gov.uk
2021-12-01
Access contraints
Not specified
Harvest GUID
CEFASA4C4E5D1-0A28-48D7-B7F9-46FACA9FF477
Extent
Latitude: 52.00° to 51.25°
Longitude: 0.00° to 2.00°
Spatial reference system
Dataset reference date
2016-06-10 (publication)
2021-12-01 (revision)
2016-06-08 (creation)
Frequency of update
notPlanned
Responsible party
Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory (CEFAS) (originator, custodian, distributor, owner); Department for Environment, Food and Rural Affairs (DEFRA) (owner)
ISO 19139 resource type
series
Metadata language
eng
Source Metadata
XML
HTML

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