RRS Challenger CH11/82

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS Challenger (74CH)
Cruise identifierCH11/82
Cruise period1982-07-29 — 1982-08-12
Port of departureFalmouth, United Kingdom
Port of returnArdrossan, United Kingdom
Objectives1. To continue joint seasonal benthic sampling programmes on the SMBA Permanent Station (56º 40'N, 12º 16'W) and in the vicinity of station 'M' (57º 18'N, 10º 23'W) for SMBA and Univ. Coll. Swansea.
2. To undertake a programme of quantitative benthic sampling in the northern Rockall Trough using USNEL 0.15m2 box corer with "Sandia" and RVS modifications.
3. To collect megabenthos using the Agassiz trawl at the box coring stations in order to continue collaborative studies on the zoogeography, and life history biology of echinoderms, coelenterates and other fauna with Univ. Coll. Swansea, BM (NH) and Luton.
4. To collect deep-sea fishes in Agassiz trawl hauls for Dr J.D.M. Gordon, SMBA.
5. To continue seasonal collection of benthic megafauna for the MAFF Radiobiological Laboratory, Lowestoft (Dr R.J. Pentreath).
6. To undertake a programme of surface water sampling in order to continue Portaferry studies of phytoplankton growth on the shelf and at the shelf/slope break, particuarly off the Hebrides.
Chief scientistJohn D Gage (Scottish Marine Biological Association)
Cruise reportRRS Challenger CH11/82 cruise report ch11_82.pdf (0.46 MB) 
Ocean/sea areas 
GeneralInner Seas off the West Coast of Scotland
North East Atlantic Ocean (limit 40W)
SpecificRockall Trough
Track chartsRRS Challenger CH11/82 cruise track — trk2759.html
Physical oceanography 
BathythermographQuantity: number of profiles = 9
Water bottle stationsDescription: surface only
Biology and fisheries 
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: number of stations = 9
PhytoplanktonQuantity: number of stations = 9
ZooplanktonQuantity: number of hauls = 2
ZoobenthosQuantity: number of hauls = 26
Description: biomass determination