FRV Explorer 10/72
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | FRV Explorer (74EX) |
| Cruise identifier | 10/72 |
| Cruise period | 1972-11-17 — 1972-12-22 |
| Status | Completed |
| Port of return | Aberdeen, United Kingdom |
| Purpose | Research |
| Objectives | 1) Extra plankton sampling was done off Irvine Bay
2) Extra pollution sampling was carried out in Scapa Flow - mercury analysis 3) Cod, T.esmarkii, N. poutassou and several other gadoids were frozen and taken back to the laboratory for examination 4) Dutch Gulf III samples of plankton were preserved in formalin for herring larval studies and other samples deep frozen for dry weight estimation The ship was forced to shelter in Minch on the due to bad weather, sampling and trawling got delayed on several occasions. The ship put into Greenock on the 30/11/1972 for change in ship's personnel, water and engine repairs leaving on the 01/12/1972. |
| Chief scientist | Norman T Nicoll (Department of Agriculture and Fisheries for Scotland Aberdeen Marine Laboratory) |
| Cruise report |  (0.10 MB) |
| Ocean/sea areas | |
| General | North Sea |
| Specific | Moray Firth, Clyde, Hebreides, N. Ireland, Orkney, S of St Kilda |
| Measurements | |
| Physical oceanography | |
| Water bottle stations | Quantity: number of stations = 40 |
| Chemical oceanography | |
| Phosphate | Quantity: 40 |
| Nitrate | Quantity: 40 |
| Silicate | Quantity: 40 |
| Contamination | |
| Other contaminant measurements | Quantity: 5 Description: chemical pollution |
| Biology and fisheries | |
| Primary productivity | Quantity: 47 |
| Phytoplankton pigs (eg chlorophyll, fluorescence) | Quantity: 40 |
| Particulate organic matter (inc POC, PON) | Quantity: 40 |
| Phytoplankton | Quantity: number of hauls = 20 Description: Standard nets. Duplicate Dutch Gulf III samples were taken at all stations worked. |
| Zooplankton | Quantity: 40 |
| Pelagic fish | Quantity: number of stations = 35 Description: Whiting, haddock, dogfish, squid, herring, cod, T.esmarkii, N. poutassou, several other gadoids, 250 hake otoliths were collected in tubes of seawater |
| Demersal fish | Quantity: number of stations = 35 Description: Whiting, haddock, dogfish, squid, herring, cod, T.esmarkii, N. poutassou, several other gadoids, 250 hake otoliths were collected in tubes of seawater |
