FRV Mara 8/75
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | FRV Mara (74MR) |
| Cruise identifier | 8/75 |
| Cruise period | 1975-07-28 — 1975-08-08 |
| Status | Completed |
| Port of departure | Buckie, United Kingdom |
| Port of return | Buckie, United Kingdom |
| Purpose | Research |
| Objectives | 1) To measure the net drag differentials of four panel trawls of varying mouth openings and constructed with twines of differing thickness
2) To test the diver's distance measuring instrument 3) The reactions of small haddock and roundfish to the approaching trawl were observed |
| Chief scientist | A Corrigall (Department of Agriculture and Fisheries for Scotland Aberdeen Marine Laboratory) |
| Cruise report |  (0.06 MB) |
| Ocean/sea areas | |
| General | North Sea |
| Specific | Lossiemouth |
| Measurements | |
| Biology and fisheries | |
| Gear research | Quantity: activity duration in days = 9 Description: To measure the net drag differentials of four panel trawls of varying mouth openings and twine thicknesses. |
| Gear research | Quantity: number of experiments = 1 Description: The diver's new distance measuring instrument was also tested, but proved to be incompatible with the rest of the unit, so was returned for modification. |
| Gear research | Quantity: number of experiments = 1 Description: In the trials it was noted that the trawl herding of the fish was seen to work 'with' and 'against' the tide, but success was far lower on cross tides. No. of trials not specified. |
