Cruise inventory

FRV Explorer 4B/68

Cruise summary report

Cruise Info. 
Ship name (ship code)FRV Explorer (74EX)
Cruise identifier4B/68
Cruise period1968-05-22 — 1968-06-01
StatusCompleted
Port of departureStornoway, United Kingdom
Port of returnAberdeen, United Kingdom
PurposeResearch
Objectives1) Hydro-Plankton survey of the bank was carried out till the 30/05/1968.
2) Hydro stations were worked at to St. Kilda

The Technicon Anaylser was run continuously throughout the cruise to provide surface silicate data. Phytoplankton sedimentation samples were collect for Dr Gillbricht, Kiel, for comparison with chlorophyll data and with carbon-14 estimates of production. Deep water microbiological studies were carried out by Dr Munro in the centre of the channel between Rockall and St. Kilda
Chief scientistJohn H Steele (Department of Agriculture and Fisheries for Scotland Aberdeen Marine Laboratory)
Cruise reportFRV Explorer 4B/68 cruise report explorer4_68.pdf — access key 'C' (0.20 MB) 
Ocean/sea areas 
GeneralNorth Atlantic Ocean
SpecificRockall, Moray Firth
Measurements 
Physical oceanography 
Surface measurements underway (T,S)Description: T only
BathythermographQuantity: number of profiles = 7
Description: mechanical
Water bottle stationsQuantity: number of stations = 34
Description: 74 T surface
Chemical oceanography 
PhosphateQuantity: 31
Description: Technicon Anaylser was run continuously throughout the cruise to provide surface data
NitrateQuantity: 13
Description: Technicon Anaylser was run continuously throughout the cruise to provide surface data
IsotopesDescription: C
Biology and fisheries 
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: 32
Description: The Turner fluorometer was run continuously for chlorophyll.
PhytoplanktonQuantity: 67
Description: In virto sampling carried out for calibration purposes