FRV Explorer 10/75
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | FRV Explorer (74EX) |
| Cruise identifier | 10/75 |
| Cruise period | 1975-11-26 — 1975-12-16 |
| Status | Completed |
| Port of return | Stornoway, United Kingdom |
| Purpose | Research |
| Objectives | 1) Combined North Sea and west coast pre-recruit demersal fish and environmental survey
2) To train new ASO's in all aspects of the demersal's team requirements and of general shipboarding duties 3) Stomachs of cod were taken form selected hauls ''Explorer'' went to Stornoway on the 09/12/1975 to change personnel and disembark crew members, leaving on the 11/12/1975. The ship returned on the 12/12/1975 with engine trouble leaving on the 13/12/1975. |
| Chief scientist | Sidney D E Devlin (Department of Agriculture and Fisheries for Scotland Aberdeen Marine Laboratory) |
| Cruise report |  (0.10 MB) |
| Ocean/sea areas | |
| General | North Sea |
| Specific | Minch area, Inner and Outer Hebrides, Butt of Lewis area, Firth coast |
| Measurements | |
| Biology and fisheries | |
| Phytoplankton pigs (eg chlorophyll, fluorescence) | Quantity: number of samples = 26 Description: chlorophyll a analysis from the non-toxic pump supply |
| Phytoplankton | Quantity: number of hauls = 26 Description: Oblique. Hauls taken near bottom to surface for plankton with a high speed Loch Ewe net. The fractions were frozen separately for dry weight analysis |
| Zooplankton | Quantity: number of hauls = 26 Description: Oblique. Hauls taken near bottom to surface for plankton with a high speed Loch Ewe net. The fractions were frozen separately for dry weight analysis |
| Demersal fish | Quantity: number of stations = 26 Description: 15 of the North Sea survey, 11 W.coast survey using a 48' Aberdeen trawl and small mesh cover. A cod-end of 79.5 mm was used throughout. Haddock, whiting, cod caught. Samples of blood, body weights and otoliths from 249 cod were taken |
| Other biological/fisheries measurement | Quantity: number of samples = 40 Description: Two samples per day for carbon analysis |
