FRV Clupea 12/70
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | FRV Clupea (74CU) |
| Cruise identifier | 12/70 |
| Cruise period | 1970-10-22 — 1970-11-12 |
| Status | Completed |
| Port of return | Greenock, United Kingdom |
| Purpose | Fisheries |
| Objectives | 1. To measure depth attenuation of sound at 400 kHz.
2. To carry out a survey of the Clyde herring stock using the fish echo counter and pelagic trawl. |
| Chief scientist | Alan Saville (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 | Clyde, Firth of Lorne, area to the west and north of Arran |
| Measurements | |
| Biology and fisheries | |
| Pelagic fish | Quantity: number of hauls = 13 Description: Mid-water pelgaic trawl catches to the area to the west and north of Arran. Herring, saithe, whiting, and Trisopterus esmarkii caught |
| Pelagic fish | Quantity: number of hauls = 2 Description: 0-group cod caught on Skermorlie Bank and in Loch Long |
| Demersal fish | Quantity: number of hauls = 13 Description: Mid-water pelgaic trawl catches to the area to the west and north of Arran. Herring, saithe, whiting, and Trisopterus esmarkii caught |
