Cruise inventory

RRS Challenger CH11/80

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS Challenger (74CH)
Cruise identifierCH11/80
Cruise period1980-07-28 — 1980-08-11
StatusCompleted
Port of departureBarry, United Kingdom
Port of returnBarry, United Kingdom
PurposeResearch
Objectives1. To continue the seasonal sampling of the deep-sea demersal fish populations of the upper slope (500-1250m) of the Porcupine Sea Bight using the SMBA Granton Trawl.
2. To continue the seasonal survey of the deep-sea fish populations of the Porcupine Sea Bight (500-4800m) using the IOS semi-balloon trawl (OTSB 14).
3. To sample the benthos at two stations (4000 & 2700m) in the Porcupine Sea Bight with the IOS epibenthic sledge (BN 1.5-3m + SBN 0.5).
4. To obtain samples of shark liver and ovaries for Dr. Craik (SMBA).
5. To collect samples of fish from deep stations for Dr. Pentreath (MAFF Radiobiological Laboratories).
6. To collect surface plankton samples with the IOS Neuston net.
Chief scientistJohn D M Gordon (Scottish Marine Biological Association)
Cruise reportRRS Challenger CH11/80 cruise report ch11_80.pdf — access key 'C' (0.30 MB) 
Ocean/sea areas 
GeneralNorth East Atlantic Ocean (limit 40W)
SpecificN.E. Atlantic
Track chartsRRS Challenger CH11/80 cruise track — trk2738.html
Measurements 
Biology and fisheries 
ZoobenthosQuantity: number of hauls = 24
Description: survey to determine taxonomy, energy transfers, biomass and distribution.
Demersal fishQuantity: number of hauls = 24
Exploratory fishingQuantity: number of hauls = 24