Thames Estuary/River Blackwater Herring Survey (1989-)
Data set information
| Query EDMED |
| General | |
| Data holding centre | Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory |
| Country | United Kingdom  |
| Time period | From 1989 onwards (in November) |
| Ongoing | Yes |
| Geographical area | Thames Estuary/River Blackwater |
| Observations | |
| Parameters | Fish morphology, age and physiology; Fish abundance in water bodies; Fish taxonomy-related counts; Fish and shellfish catch statistics |
| Instruments | Pelagic trawl nets |
| Description | |
| Summary | The size of the recruiting year class of Blackwater herring is used to review the pre-season TAC. The estimate of recruitment is obtained from the November survey. Approximately 30 hauls are undertaken in the Thames Estuary and River Blackwater. Length measurements of the catch are taken as are otolith samples for age determination. Herring are identified as to stock origin and from this the relative size of the recruiting year class of Blackwater herring is obtained. This is then used to update the seasonal TAC set at the beginning of the fishery, the season opening on 1 October each year. |
| Originators | Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory |
| Data web site | http://www.cefas.co.uk/ |
| Availability | |
| Organisation | Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory |
| Availability | Licence |
| Contact | Contracts Office, CEFAS, Lowestoft |
| Address | Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory |
| Telephone | +44 1621 562244 |
| Facsimile | +44 (0)1502 513865 |
| Administration | |
| Collating centre | British Oceanographic Data Centre |
| Local identifier | 1029065 |
| Global identifier | 444 |
| Last revised | 2009-05-22 |
