FRV Explorer 11/81
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | FRV Explorer (74EX) |
| Cruise identifier | 11/81 |
| Cruise period | 1981-12-09 — 1981-12-23 |
| Status | Completed |
| Port of departure | Leith, United Kingdom |
| Port of return | Aberdeen, United Kingdom |
| Purpose | Research |
| Objectives | 1. To survey the stocks of spurdogs (Squalus acanthias) to the north and west of Scotland.
2. To tag spurdogs. 3. To collect data on the feeding and fecundity of spurdogs. 4. Various whitefish samples were collected for the Parasitology Section ''Explorer'' sheltered in Dunnet Bay on the 20/12/1981 till the 22/12/1981 |
| Chief scientist | J A Gauld (Department of Agriculture and Fisheries for Scotland Aberdeen Marine Laboratory) |
| Cruise report |  (0.16 MB) |
| Ocean/sea areas | |
| General | North Sea North East Atlantic Ocean (limit 40W) |
| Specific | N. & W. Scotland, Orkney area, Dunnet Bay, North and South Minch, Gruinard Bay, Hoy area |
| Track charts |  |
| Measurements | |
| Biology and fisheries | |
| Demersal fish | Quantity: number of hauls = 26 Description: valid trawl hauls were made over the survey area for spurdogs. 1059 stomachs were examined |
| Taggings | Quantity: number of specimens = 1475 Description: Spurdogs measured, sexed, double tagged and released. 76 Scylirhirus were tagged and released |
| Exploratory fishing | Quantity: number of hauls = 30 Description: commercial. |
