RRS Challenger CH110

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS Challenger (74CH)
Cruise identifierCH110
Cruise period1994-03-10 — 1994-03-20
Port of departureCampbeltown, United Kingdom
Port of returnOban, United Kingdom
Objectives1. To work the CTD stations of the Anton Dohrn Seamount (Ellett Line) section, between the shelf-edge and Rockall to continue the Rockall Trough time-series as a UK contribution to WOCE Goal 2.
2. To recover and redeploy a temperature-salinity recorder and thermistor chain at station M of the Anton Dohrn Section.
3. To service the DML current meter mooring in the Tiree Passage.
4. To sample benthos at the SAMS Permanent Station (54 30'N, 12 16'W) and at station M using the epibenthic sled and the Agassiz trawl.
5. To collect a suite of physical, nutrient and biological profiles and samples at the shelf-edge west of Barra as part of the LOIS pilot studies and to attempt box-coring if time and weather permits.
6. To work the shelf-edge - Sound of Mull CTD section, with nutrient and chlorophyll sampling.
7. To work the PROFILE sampling stations around the Arran deep, as time permits.
8. To collect clean oceanic water for the Culture Collection.
Chief scientistDavid J Ellett (Dunstaffnage Marine Laboratory)
Coordinating bodyIOC/WMO-JRC in UK/NERC PML/CEC MAST Programme
Cruise reportRRS Challenger CH110 cruise report ch110_94.pdf (0.33 MB) 
Ocean/sea areas 
GeneralInner Seas off the West Coast of Scotland
North East Atlantic Ocean (limit 40W)
SpecificNE Atlantic, Rockall Trough, W. Scottish Shelf, Firth of Clyde
Track chartsRRS Challenger CH110 cruise track — trk4001.html
Physical oceanography 
CTD stationsQuantity: number of stations = 47
Description: Oxygen received, but rejected
Current metersQuantity: number of stations = 1
Description: 2 current meters on one mooring
Chemical oceanography 
PhosphateQuantity: number of stations = 37
NitrateQuantity: number of stations = 37
NitriteQuantity: number of stations = 37
AmmoniaQuantity: number of stations = 37
SilicateQuantity: number of stations = 37
Biology and fisheries 
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: number of stations = 37
Description: on CTD
ZoobenthosQuantity: number of hauls = 1
Description: Agassiz trawl, Decapod samples for visual adaptation studies
Moorings, landers, buoys 
Physical oceanography 
Current meters56° 37' 59" N  6° 24' 0" W — Mooring serviced 14 Mar. 2 Aanderaa current meters at 26m & 36m, sounding 46m