FRV Scotia 1297S
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | FRV Scotia (749S) |
| Cruise identifier | 1297S |
| Cruise period | 1997-09-22 — 1997-10-13 |
| Status | Completed |
| Port of departure | Aberdeen, United Kingdom |
| Port of return | Aberdeen, United Kingdom |
| Purpose | Research |
| Objectives | Deep water trawl survey; collection of Nephrops samples
1) To carry out detailed engineering performance measurements on above gear at depth 2) To investigate selectivity of current regulation cod-end mesh size (100 mm) on deep water species 3) To obtain video film of the behaviour of these species within the trawl cod-end 4) To record water temperature at depth during fishing hauls and to relate catch size/species 5) To carry out three hauls for Nephrops samples in Burra Haaf on passage A crew member was landed by boat in Scalloway on the 23/09/1997. Bad weather stopped work on the 28/09/1997 and the vessel dodged until the 30/09/1997 when fishing was resumed. A break was made in Stornoway on the 02/10/1997 to receive replacement warps, and a ''Scotia'' was required to put into Ullapool for repairs. ''Scotia'' returned to Stornoway to pick up a replacement part. |
| Chief scientist | R Derek Galbraith (Fisheries Research Services Aberdeen Marine Laboratory) |
| Cruise report |  (0.87 MB) |
| Ocean/sea areas | |
| General | Inner Seas off the West Coast of Scotland |
| Specific | NW Scottish waters, N of Shetland Isles, Burra Haaf, Wyville-Thompson ridge, WNW of Sulisker, Vidal Bank SW of Barra Head, St Kilda area. |
| Measurements | |
| Physical oceanography | |
| Subsurface temperature and salinity measurements | Quantity: number of hauls = 30 Description: Deep water: water temperature only at fishing depth measured |
| Biology and fisheries | |
| Crustaceans | Quantity: number of hauls = 2 Description: Nephrops samples |
| Gear research | Quantity: number of hauls = 13 Description: Instrumented. (2 partially instrumented) carried out at depths ranging from 675 to 875 metres using warps lengths from 1200 to 1800 metres |
| Gear research | Quantity: number of hauls = 27 Description: 4 with a 40 mm mesh polyethene cover supported by a 3 metre diameter hoop. 23 with an unsupported 20 mm mesh polyamide cover |
| Gear research | Quantity: activity duration in hours = 39 Description: Recorded of the deep sea cod-end under various conditions of visibility |
| Geology and geophysics | |
| Bottom photography | Quantity: activity duration in hours = 39 Description: Recorded of the deep sea cod-end under various conditions of visibility |
