Cruise inventory

FRV Mara 2/73

Cruise summary report

Cruise Info. 
Ship name (ship code)FRV Mara (74MR)
Cruise identifier2/73
Cruise period1973-02-12 — 1973-03-15
StatusCompleted
Port of departureBuckie, United Kingdom
Port of returnStornoway, United Kingdom
PurposeResearch
Objectives1. To carry out a bottom trawling survey for Norway pout in the Clyde and Minches.
2. To carry out routine hydrography in the Clyde.
3. To tag whiting and saithe in the Clyde.
4. To collect water samples for herring larval experiments.
Chief scientistJohn A Morrison (Department of Agriculture and Fisheries for Scotland Aberdeen Marine Laboratory)
Cruise reportFRV Mara 2/73 cruise report mara2_73.pdf — access key 'C' (0.16 MB) 
Ocean/sea areas 
GeneralInner Seas off the West Coast of Scotland
Measurements 
Physical oceanography 
CTD stationsQuantity: number of stations = 7
Chemical oceanography 
PhosphateQuantity: number of stations = 7
NitrateQuantity: number of stations = 7
Total - NQuantity: number of stations = 7
SilicateQuantity: number of stations = 7
Contamination 
Other contaminant measurementsQuantity: number of stations = 5
Description: chemical pollution;routine environmental studies in the Firth of Clyde(on Cr.2)
Biology and fisheries 
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: number of stations = 7
ZooplanktonQuantity: number of stations = 5
Description: only on cruise 2
Demersal fishDescription: 21 stations for population surveys and fish tagging for plaice, cod and saithe