Cruise inventory

RRS Challenger CH82B

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS Challenger (74CH)
Cruise identifierCH82B
Cruise period1991-07-17 — 1991-08-01
StatusCompleted
Port of departureHirtshals Havn, Denmark
Port of returnGreat Yarmouth, United Kingdom
PurposeResearch
ObjectivesStudy of sulphide- and methane-based ecosystems. Second part of two leg cruise
Chief scientistPaul Dando (Plymouth Marine Laboratory)
ProjectMAST 0044 Sulphide and methane based ecosystems
Coordinating bodyMBA
Ocean/sea areas 
GeneralSkagerrak
SpecificSkagerrak, Danish sector, methane seep areas
Track chartsRRS Challenger CH82B cruise track — trk3696.html
Measurements 
Physical oceanography 
CTD stationsQuantity: number of stations = 4
Chemical oceanography 
Other dissolved gasesQuantity: number of samples = 4
Description: Soderberg corer samples for sediment gas composition and isotope ratios
Other dissolved gasesQuantity: number of cores = 14
Description: Box cores for vertical profiles: methane,inorganic/organic C,sulphate reduction
Other dissolved gasesQuantity: number of samples = 2
Description: water bottle samples for dissolved methane
AmmoniaQuantity: number of cores = 14
Description: Box cores for vertical profiles of ammonia
pHQuantity: number of cores = 14
Description: Box cores for vertical profiles of pH
IsotopesQuantity: number of cores = 14
Description: Box cores for vertical profiles of isotopes
Other chemical oceanographic measurementsQuantity: number of cores = 14
Description: Box core samples for vertical profiles (sulphate reduction/methane oxidation)
Biology and fisheries 
Benthic bacteria/micro-organismsQuantity: number of cores = 14
Description: Box core samples
ZoobenthosQuantity: number of samples = 48
Description: cores- multi & boxcore samples for gas seep distrib.,macro- & meiofauna species and biomassy
Geology and geophysics 
Bottom photographyQuantity: number of deployments = 3
Description: drops - UMEL 35mm stereo camera deployment for bottom photographs
Single-beam echosoundingQuantity: number of track lines = 58
Description: Simrad EA500 10kHz echosounding
Long/short range side scan sonarQuantity: number of track lines = 4
Description: lines - Waverley side-scan sonar
Single channel seismic reflectionQuantity: number of track lines = 53
Description: lines - BGS deep tow boomer
Other geological/geophysical measurementsQuantity: number of samples = 52
Description: cores - box core samples for gas seep distribution