FRV Explorer 5B/68
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | FRV Explorer (74EX) |
| Cruise identifier | 5B/68 |
| Cruise period | 1968-06-20 — 1968-07-07 |
| Status | Completed |
| Port of departure | Aberdeen, United Kingdom |
| Port of return | Aberdeen, United Kingdom |
| Purpose | Research |
| Objectives | 1) To work the new standard Faroe-Shetland hydrographic lines and to carry out a routine trawling survey at Faroe.
2) Sedimentation samples were collected in connection with the mussel toxicity investigation 3) A sample of cod from each catch was examined for worms 4) All whiting were preserved for laboratory examination 5) A bridge echo-sounder was used to make an annotated record of the profiles of both the hydrographic lines. A short break in Klakksvik was made where the electric winches were repaired |
| Chief scientist | Richard B Burns (Department of Agriculture and Fisheries for Scotland Aberdeen Marine Laboratory) |
| Cruise report |  (0.31 MB) |
| Ocean/sea areas | |
| General | North East Atlantic Ocean (limit 40W) |
| Specific | Sule Skerry, Faroe-Shetland Channel, north of Sydero, Moray Firth |
| Measurements | |
| Physical oceanography | |
| Water bottle stations | Quantity: number of stations = 20 Description: Temperature and salinities were taken only on the 2 hydrographic tranverses of the Faroe-Shetland Channel |
| Chemical oceanography | |
| Oxygen | Quantity: 6 |
| Phosphate | Quantity: 6 |
| Nitrate | Quantity: 6 |
| Silicate | Quantity: 6 |
| Biology and fisheries | |
| Phytoplankton | Quantity: 20 |
| Zooplankton | Quantity: 20 |
| Demersal fish | Quantity: number of hauls = 41 Description: 1 hour duration: 20 with a manilla trawl; 21 with a courlene trawl. Haddock was the dominant species in most of the hauls. Cod, saithe, whiting, lemon sole, plaice, halibut and skate were also caught |
