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 |