Cruise inventory

FRV Mara 7/78

Cruise summary report

Cruise Info. 
Ship name (ship code)FRV Mara (74MR)
Cruise identifier7/78
Cruise period1978-07-03 — 1978-08-04
StatusCompleted
Port of departureBuckie, United Kingdom
Port of returnBuckie, United Kingdom
Objectives1. To carry out an echosounder and midwater trawling survey for juvenile clupeids in the Clyde.
2. To carry out comparative fishing experiments with the Gourock midwater trawl and the new modified version of this trawl.
3. To carry out a routine water quality survey in Loch Linnhe.
Chief scientistJohn A Morrison (Department of Agriculture and Fisheries for Scotland Aberdeen Marine Laboratory)
ProjectJ A Morrison
Cruise reportFRV Mara 7/78 cruise report mara7_78.pdf — access key 'C' (0.14 MB) 
Ocean/sea areas 
GeneralInner Seas off the West Coast of Scotland
Measurements 
Physical oceanography 
Surface measurements underway (T,S)Description: Water samples taken on each vertical profile for confirmation of oxygen and salinity
Surface measurements underway (T,S)Description: Temperature, salinity and oxygen levels determined using telemetering probes
Chemical oceanography 
OxygenDescription: Temperature, salinity and oxygen levels determined using telemetering probes
OxygenDescription: Water samples taken on each vertical profile for confirmation of oxygen and salinity
PhosphateDescription: Water samples taken on each vertical profile for confirmation of oxygen and salinity
NitrateDescription: Water samples taken on each vertical profile for confirmation of oxygen and salinity
NitriteDescription: Water samples taken on each vertical profile for confirmation of oxygen and salinity
SilicateDescription: Water samples taken on each vertical profile for confirmation of oxygen and salinity
Biology and fisheries 
Demersal fish
Acoustic reflection on marine organisms.