FRV Clupea 11/71
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | FRV Clupea (74CU) |
| Cruise identifier | 11/71 |
| Cruise period | 1971-11-18 — 1971-11-29 |
| Status | Completed |
| Port of departure | Campbeltown, United Kingdom |
| Port of return | Unknown, United Kingdom |
| Purpose | Fisheries |
| Objectives | 1. To survey the distribution and abundance of 0-group herring in the Clyde.
2. To do environmental and fish sampling for pollution investigations. 3. To investigate the optimum combination of engine revs and propeller pitch for towing trawls. |
| Chief scientist | Martin Walsh (Department of Agriculture and Fisheries for Scotland Aberdeen Marine Laboratory) |
| Cruise report |  (0.10 MB) |
| Ocean/sea areas | |
| General | Inner Seas off the West Coast of Scotland |
| Specific | Firth of Clyde |
| Measurements | |
| Physical oceanography | |
| Water bottle stations | Quantity: number of stations = 33 Description: 27 surface only |
| Chemical oceanography | |
| Phosphate | Quantity: number of stations = 33 |
| Nitrate | Quantity: number of stations = 33 |
| Ammonia | Quantity: number of stations = 14 |
| Contamination | |
| Other contaminant measurements | Quantity: number of stations = 6 Description: chemical pollution |
| Biology and fisheries | |
| Pelagic fish | Quantity: number of hauls = 25 |
| Demersal fish | Quantity: number of hauls = 25 |
