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RRS Challenger CH67A

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS Challenger (74CH)
Cruise identifierCH67A
Cruise period1990-06-21 — 1990-06-29
StatusCompleted
Port of departureGreat Yarmouth, United Kingdom
Port of returnOban, United Kingdom
PurposeResearch
Objectives1. To sample the benthopelagic fish populations of the Faroe-Shetland Channel.
2. To work CTD stations of the Anton Dohrn Seamount section between Rockall and the shelf-edge.
3. To collect large volume water samples and Ellett Line CTD profiles at standard positions between the shelf-edge and the Sound of Mull.
4. To service the DML current meter mooring in the Tiree Passage.
5. To study the biology of coccolithophores of the northern Rockall Channel and continental shelf.
Chief scientistDavid J Ellett (Dunstaffnage Marine Laboratory)
Cruise reportRRS Challenger CH67A cruise report ch67_90.pdf (0.42 MB) 
Ocean/sea areas 
GeneralNorth Sea
Inner Seas off the West Coast of Scotland
North East Atlantic Ocean (limit 40W)
SpecificNW Scotland. Faroe-Shetland Channel, Rockall Channel and Scottish continental shelf.
Track chartsRRS Challenger CH67A cruise track — trk3570a.html RRS Challenger CH67A cruise track — trk3570b.html
Measurements 
Physical oceanography 
BathythermographQuantity: number of profiles = 5
Water bottle stationsQuantity: number of stations = 16
Description: S
CTD stationsQuantity: number of stations = 31
Current metersQuantity: number of deployments = 2
Description: 2 current meters deployed
Chemical oceanography 
RadioactivityQuantity: number of samples = 26
Description: Cs137
Biology and fisheries 
PhytoplanktonQuantity: number of stations = 4
PhytobenthosQuantity: number of stations = 5
Description: description of communities
ZoobenthosQuantity: number of stations = 5
Description: description of communities
Demersal fishQuantity: number of stations = 7
Description: population and environments