RV Corystes COR4Z/03

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Corystes (74RY)
Cruise identifierCOR4Z/03
Cruise period2003-05-04 — 2003-05-19
Port of departureLowestoft, United Kingdom
Port of returnLowestoft, United Kingdom
Objectives1. To conduct a plankton survey, using a 53 cm high speed tow net fitted with the Guildline CTD monitoring system, to determine the distribution and abundance of crab (Cancer pagurus) larvae in the area bounded by latitudes 48° 00' N and 51° 30' N and longitudes 7° 00' W and 3° 00' E, with particular emphasis on the eastern English Channel.
2. To continuously monitor the seabed topography using a combination of swathe bathymetry and QTC ground discrimination.
3. To continuously monitor temperature and salinity of sub-surface sea water.
4. To deploy 5, satellite tracked, Argos drifting buoys.
Chief scientistDerek Roy Eaton (Centre for Environment, Fisheries and Aquaculture Science Lowestoft Laboratory)
Cruise reportRV Corystes COR4Z/03 cruise report cory4z_03.pdf (0.12 MB) 
Ocean/sea areas 
GeneralEnglish Channel
North Sea
SpecificSouthern North sea, English Channel and Western Approaches
Track chartsRV Corystes COR4Z/03 cruise track — cory4z_03trk.pdf (0.11 MB) 
Physical oceanography 
Water bottle stationsQuantity: number of stations = 54
Description: Water samples taken for analytical determinations of salinity.
CTD stationsQuantity: number of stations = 163
Description: Guildline CTD monitoring system.
Biology and fisheries 
ZoobenthosQuantity: number of stations = 163
Description: surveyed using a 53cm high speed tow net to determine the distribution and abundance of crab (Cancer pagurus) larvae.
Geology and geophysics 
Single-beam echosoundingDescription: QTC ground discrimination.
Moorings, landers, buoys 
Physical oceanography 
Surface drifters/drifting buoys51° 13' 26" N  1° 42' 5" E — Argos buoy PTT 13684 recovered 18/05/2003.
Surface drifters/drifting buoys50° 34' 59" N  0° 45' 13" E — Argos buoy PTT 13684 deployed 04/05/2003.
Surface drifters/drifting buoys49° 32' 26" N  3° 59' 57" W — Argos Buoy PTT 21825 deployed 05/05/2003. Buoy failed to transmit.
Surface drifters/drifting buoys50° 10' 31" N  1° 59' 32" W — Argos Buoy PTT 13693 deployed 05/05/2003. Ceased transmitting 14/05/2003.
Surface drifters/drifting buoys50° 10' 9" N  1° 0' 42" W — Argos Buoy PTT 13679 deployed 05/05/2003. Ceased transmitting 17/05/2003.