Cruise inventory

RRS Challenger CH11/79

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS Challenger (74CH)
Cruise identifierCH11/79
Cruise period1979-08-02 — 1979-08-15
Port of departureBarry, United Kingdom
Port of returnArdrossan, United Kingdom
Objectives1. To obtain quantitative samples of deep-sea macrobenthos using 0.25m2 box corers for study of benthic community structure and standing crop at locations on the continental slope in the Southwestern Approaches, in the Porcupine Seabight at stations studied by IOS (Wormley) and at various locations in the Rockall Trough.
2. To obtain seabed photographs using a bottom triggered stereo and mono systems camera at some of these sites, including the Whittard Canyon, for MBA.
3. To obtain intact box cores of the deep-sea sediment, using the Reineck box corer, in order to extend studies of biogenic structure in shelf muds to deep se deposits.
4. To obtain a large sample, using the epibenthic sled, of deep-sea macrobenthos from the SMABA Permanent Station in the southern Rockall Trough in order to continue the time series started in November 1975.
5. To obtain samples of benthic megafauna using the Agassiz Trawl at a station between the Anton Dohrn Seamount and the adjacent Scottish slope in order to continue a secondary time series, with an emphasis on megafaunal echinoderms, for Dr Tyler and SMBA, and opportunistically at other stations in order to augment previous ophiuroid records.
6. To obtain samples of deep plankton at the SMBA permanent station for Dr Tyler.
7. To obtain sediment samples from the Porcupine Bank for the Department of Geology, Edinburgh University.
Chief scientistJohn D Gage (Scottish Marine Biological Association)
Cruise reportRRS Challenger CH11/79 cruise report ch11_79.pdf — access key 'C' (0.41 MB) 
Ocean/sea areas 
GeneralNorth East Atlantic Ocean (limit 40W)
Track chartsRRS Challenger CH11/79 cruise track — trk2298.html
Biology and fisheries 
ZoobenthosQuantity: number of hauls = 9
Description: taxonomy,population studies
Gear research
Geology and geophysics 
GrabQuantity: number of samples = 3
Description: Shipek grab samples.
Core - soft bottomQuantity: number of cores = 2
Bottom photographyQuantity: number of image series = 8
Description: bottom photography