Cruise inventory

RRS Challenger CH8/79

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS Challenger (74CH)
Cruise identifierCH8/79
Cruise period1979-05-29 — 1979-06-11
Port of departureArdrossan, United Kingdom
Port of returnBarry, United Kingdom
Objectives1. To obtain further fish samples from the SMBA permanent station in the Rockall Channel.
2. To begin a seasonal survey of the deep-sea demersal fish populations of the upper slope of the Porcupine Sea Bight using the large Granton trawl.
3. To continue seasonal surveys of the deep-sea demersal fish populations of the Porcupine Sea Bight from 500 to 4800m using the IOS semi-balloon trawl.
4. To collect invertebrate samples from all stations for IOS (Wormley).
5. To carry out comparative fishing trials between the SMBA Granton trawl, the IOS semi-balloon trawl and the SMBA single warp box trawl at depths from 500 to 1250m.
6. To collect samples of fish muscle for 137Cs analysis for the MAFF Radiobiological Laboratory at Lowestoft.
Chief scientistJohn D M Gordon (Scottish Marine Biological Association)
Cruise reportRRS Challenger CH8/79 cruise report ch8_79.pdf — access key 'C' (0.25 MB) 
Ocean/sea areas 
GeneralNorth East Atlantic Ocean (limit 40W)
Track chartsRRS Challenger CH8/79 cruise track — trk2733.html
Chemical oceanography 
RadioactivityDescription: Samples of fish muscle collected for radio-caesium analysis.
Biology and fisheries 
ZoobenthosQuantity: number of hauls = 26
Demersal fishQuantity: number of hauls = 26
Description: survey: taxonomy, energy transfers, biomass determination etc.
Exploratory fishingQuantity: number of hauls = 26