Cruise inventory

FRV Explorer 10/75

Cruise summary report

Cruise Info. 
Ship name (ship code)FRV Explorer (74EX)
Cruise identifier10/75
Cruise period1975-11-26 — 1975-12-16
StatusCompleted
Port of returnStornoway, United Kingdom
PurposeResearch
Objectives1) 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 scientistSidney D E Devlin (Department of Agriculture and Fisheries for Scotland Aberdeen Marine Laboratory)
Cruise reportFRV Explorer 10/75 cruise report explorer10_75.pdf — access key 'C' (0.10 MB) 
Ocean/sea areas 
GeneralNorth Sea
SpecificMinch 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
PhytoplanktonQuantity: 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
ZooplanktonQuantity: 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 fishQuantity: 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 measurementQuantity: number of samples = 40
Description: Two samples per day for carbon analysis