Cruise inventory

FRV Scarba 6/71

Cruise summary report

Cruise Info. 
Ship name (ship code)FRV Scarba (74RG)
Cruise identifier6/71
Cruise period1971-08-06 — 1971-08-30
Port of departureAberdeen, United Kingdom
Port of returnAberdeen, United Kingdom
Objectives1. To complete the midwater trawling survey for 0-group gadoids in the north-western North Sea begun on the previous cruise, and to repeat sampling at a number of widely spaced points within the survey area.
2. To investigate diurnal variation in the availability of small gadoids in midwater and on the sea bed.
3. To investigate the food and diurnal variation in the feeding rates of 0-group gadoids, clupeids and sandeels.
4. To obtain live fish for aquarium experiments.
5. To investigate the planktonic environment of the pelagic phase of gadoids.
6. To make some hydrographic observations at selected stations.
Chief scientistRoger S Bailey (Department of Agriculture and Fisheries for Scotland Aberdeen Marine Laboratory)
Cruise reportFRV Scarba 6/71 cruise report scarba6_71.pdf — access key 'C' (0.20 MB) 
Ocean/sea areas 
GeneralNorwegian Sea
North East Atlantic Ocean (limit 40W)
Physical oceanography 
BathythermographQuantity: number of profiles = 33
Description: mechanical
Water bottle stationsQuantity: number of stations = 33
Description: top & bottom only
Other contaminant measurementsDescription: chemical pollution
Biology and fisheries 
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: 33
PhytoplanktonQuantity: 3
ZooplanktonQuantity: 77
Description: microplancton
ZooplanktonQuantity: 34
Mammals and reptilesDescription: mammals
Pelagic fishQuantity: number of hauls = 77
Other biological/fisheries measurementDescription: deep scattering layers 20 days