Cruise inventory

RV Corystes COR7/95

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Corystes (74RY)
Cruise identifierCOR7/95
Cruise period1995-06-26 — 1995-07-08
StatusCompleted
Port of departureLowestoft, United Kingdom
Port of returnLowestoft, United Kingdom
PurposeTrials
Objectives1. To test and calibrate the recently upgraded sector scanning sonar system.
2. To estimate swimming speed and orientation of acoustically tagged plaice on their summer feeding grounds by simultaneous use of the sector scanning sonar and the ADCP.
3. To test methods of releasing acoustically tagged cod from cages at sea, and to estimate the swimming speed and orientation of the fish by simultaneous use of the sector scanning sonar and the ADCP.
4. To collect blood samples from live plaice through a 24h period for analysis of melatonin levels in relation to diel activity cycles.
5. To use free floating sonar buoys to record sea noise in relation to the tidal cycle.
6. To track plaice equipped with attitude sensing acoustic transponding telemetry tags.
Chief scientistJulian David Metcalfe (Ministry of Agriculture, Fisheries and Food Lowestoft Fisheries Laboratory)
Cruise reportRV Corystes COR7/95 cruise report co7_95.pdf — access key 'C' (0.13 MB) 
Ocean/sea areas 
GeneralNorth Sea
SpecificSouthern North Sea
Track chartsRV Corystes COR7/95 cruise track — trk4138.html
Measurements 
Physical oceanography 
Current profiler (eg ADCP)Description: ADCP
Other physical oceanographic measurementsQuantity: activity duration in hours = 12
Description: hours ambient sea noise
Biology and fisheries 
Demersal fishQuantity: number of hauls = 20
Description: half hour tows carried out both during the day and at night.
Other biological/fisheries measurementQuantity: number of measurements = 2
Description: fish tracking