FRV Explorer 2/79
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | FRV Explorer (74EX) |
| Cruise identifier | 2/79 |
| Cruise period | 1979-02-19 — 1979-03-08 |
| Status | Completed |
| Port of departure | Leith, United Kingdom |
| Port of return | Aberdeen, United Kingdom |
| Purpose | Research |
| Objectives | 1) To take part in the International Young Herring and Gadoid Pre-recruit Survey in the North Sea.
2) To determine the age composition of cod, haddock, saithe and whiting for each block of squares 3) To comission the new computer system 4) To obtain echo sounder records while crossing selcetd sections of pipeline routes 23/02/1979 - 27/02/1979 mid-cruise break at Leith |
| Chief scientist | Arthur S Jermyn (Department of Agriculture and Fisheries for Scotland Aberdeen Marine Laboratory) |
| Project | IYFS |
| Coordinating body | ICES |
| Cruise report |  (3.83 MB) |
| Ocean/sea areas | |
| General | North Sea |
| Specific | Danish and German coast, Dogger Bank, Heligoland, south of Fladen Ground, Moray Firth, Buchan |
| Track charts | (3.65 MB) |
| Measurements | |
| Physical oceanography | |
| Water bottle stations | Quantity: number of stations = 31 Description: top & bottom temperatures and salinities |
| Chemical oceanography | |
| Phosphate | Quantity: 2 |
| Nitrate | Quantity: 2 |
| Ammonia | Quantity: 2 |
| Silicate | Quantity: 2 |
| Contamination | |
| Trace metals | Quantity: 1 |
| Bottom deposits | Quantity: 1 |
| Contaminants in organisms | Quantity: number of hauls = 1 Description: Using a French trawl with a 20mm codend in the inner Moray Firth on the dumping ground for the British Aluminium smelter sludge. Samples of selected tissues of all species and various benthic animals were taken for later analysis and examination |
| Biology and fisheries | |
| Nekton | Quantity: 4 |
| Pelagic fish | Quantity: number of hauls = 27 Description: population,biomass determination,distribution |
| Demersal fish | Quantity: number of hauls = 27 |
