| General info | |
| Project title | NS Herring Acoustic Survey |
| Project acronym | NHAS |
| Begin date | 2004-01-01 |
| End date | To present |
| Location | |
| Geographic coverage | The survey is carried out annually in June-July, covering both herring spawning period and spawning area in the North Sea, Skagerrak and Kattegat. |
| Description | |
| Abstract | The international hydro acoustic herring survey (HERAS) main purpose is to provide an abundance estimate of the North Sea herring (Clupea harengus) population via hydro acoustic surveying. The estimate is used as a 'tuning index' by the ICES Herring Assessment Working Group (HAWG) in its assessment of the North Sea herring stock size, thus contributing to management advice. Sprat (Sprattus sprattus) is also a target species, but the abundance estimate is not used for the stock assessment. In recent years a strong ecosystem approach has been developed monitoring also birds, plankton and hydrography.
|
| Coordinator | |
| Coordinating organisation | Wageningen Marine Research, IJmuiden
|
| Country of Coordinator | Netherlands |
| Contact name | I.J. de Boois |
| Contact organisation | Wageningen Marine Research, IJmuiden
|
| Phone | +31 317 487070 |
| Fax | +31 317 487326 |
| Email | ingeborg.deboois@wur.nl |
| Edmerp metadata | |
| Edmerp id | 11611 |
| Collating centre | National Oceanographic Data Committee
|
| Latest update | 2010-09-06 |
