FRV Explorer 8/69
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | FRV Explorer (74EX) |
| Cruise identifier | 8/69 |
| Cruise period | 1969-12-09 — 1969-12-22 |
| Status | Completed |
| Port of departure | Leith, United Kingdom |
| Port of return | Aberdeen, United Kingdom |
| Purpose | Fisheries |
| Objectives | 1) To conduct a mid-water trawling and echo-survey for blue whiting in the area between the Faroes and eastern Iceland
2) The Marconi echo-sounder was run continuously in water deeper than 100 fathoms 3) Samples of ovaries and testes from blue whiting were collected for histological examination The ''netzonde winch'' broke down during a haul and the cable could not be retrieved by hand, so it was cut. Trawling continued with the Furuno Transducer. |
| Chief scientist | Roger S Bailey (Department of Agriculture and Fisheries for Scotland Aberdeen Marine Laboratory) |
| Cruise report |  (0.18 MB) |
| Ocean/sea areas | |
| General | North Atlantic Ocean |
| Measurements | |
| Physical oceanography | |
| Surface measurements underway (T,S) | Description: T only |
| Bathythermograph | Quantity: number of profiles = 27 Description: to a depth of 200-300 m. The surface thermograph was run continously throughout the cruise |
| Biology and fisheries | |
| Pelagic fish | Quantity: number of hauls = 9 Description: Engel trawl. 6 hauls gave catches of blue whiting. A frozen sample has been preserved to determine a weight/length relationship. 100 stomachs were examined for food and diurnal feeding patterns.Catfish and lumpsuckers were also caught |
| Demersal fish | Quantity: number of hauls = 9 Description: Engel trawl. 6 hauls gave catches of blue whiting. A frozen sample has been preserved to determine a weight/length relationship. 100 stomachs were examined for food and diurnal feeding patterns.Catfish and lumpsuckers were also caught |
