FRV Mara 9/73
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | FRV Mara (74MR) |
| Cruise identifier | 9/73 |
| Cruise period | 1973-09-10 — 1973-10-06 |
| Status | Completed |
| Port of departure | Dundee, United Kingdom |
| Port of return | Dundee, United Kingdom |
| Purpose | Research |
| Objectives | 1. Weeks 1-3: Observation and photography by divers of the behaviour of flatfish during the process of demersal seining.
2. Weeks 1-3: Sampling of fish at various stages during fishing of flatfish in the mouth of the net. 3. Weeks 2 or 3: A vinge trawl fitted with divertors to assess the effect of them on the rate of net closure. 4. At any time when the weather is sustainable: A complete photographic record in black and white and colour, in 16mm, 35mm and 2 1/4 square to be made of the methods and techniques used in the seine net programme. 5. Week 4: The sector scanner on board FRV 'Clione' to be used to assess the change in rope shape and the effect of ropes on herding. If possible, acoustic tagged fish to be released at critical positions for subsequent tracking. |
| Chief scientist | C C Hemmings (Department of Agriculture and Fisheries for Scotland Aberdeen Marine Laboratory) |
| Cruise report |  (0.21 MB) |
| Ocean/sea areas | |
| General | North Sea |
| Specific | St Andrew's Bay |
| Measurements | |
| Biology and fisheries | |
| Demersal fish | Description: Fish behaviour studies |
| Gear research | Description: Gear performance monitored. |
