FRV Explorer 5/74
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | FRV Explorer (74EX) |
| Cruise identifier | 5/74 |
| Cruise period | 1974-06-04 — 1974-07-04 |
| Status | Completed |
| Port of departure | Aberdeen, United Kingdom |
| Port of return | Aberdeen, United Kingdom |
| Purpose | Fisheries |
| Objectives | 1) To survey the abundance and distribution of 0-group gadoids in midwater in the northern North Sea
2) To collect material for studies of the food of 0-group gadoids 3) To bring back live 0-group fish for use in the aquarium 4) To make observations on the organic environment 5) A large quantity of formalin preserved material was brought back to the Laboratory for analysis of stomach content 6) Some adult haddock whiting and gurnards were caught on hand lines and taken ashore for experimental work A short call was made at Aberdeen on the 19/06/1974 when live fish were put ashore, the ship sailed again on the 20/06/1974. Catches/hour of cod, haddock, whiting and saithe were made |
| Chief scientist | John R G Hislop (Department of Agriculture and Fisheries for Scotland Aberdeen Marine Laboratory) |
| Cruise report |  (0.11 MB) |
| Ocean/sea areas | |
| General | North Sea Norwegian Sea North East Atlantic Ocean (limit 40W) |
| Specific | W of the Orkneys, E of the Shetlands, Moray Firth, W of Fair Isle |
| Measurements | |
| Biology and fisheries | |
| Phytoplankton pigs (eg chlorophyll, fluorescence) | Quantity: 59 Description: Samples taken using the Gulf III. Chlorophyll monitored at selected stations |
| Particulate organic matter (inc POC, PON) | Quantity: 20 Description: Organic carbon monitored at selected stations |
| Phytoplankton | Quantity: 31 |
| Pelagic fish | Quantity: number of hauls = 59 Description: 400-500 live group-0 cod, haddock and whiting were brought back to the Laboratory |
| Demersal fish | Quantity: number of hauls = 59 Description: 400-500 live group-0 cod, haddock and whiting were brought back to the Laboratory |
| Taggings | Quantity: number of specimens = 412 Description: Whiting tagged by fishing with hand lines at night. |
| Exploratory fishing |
