Cruise inventory

RRS Discovery D237

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS Discovery (74E3)
Cruise identifierD237
Cruise period1998-09-24 — 1998-10-08
StatusCompleted
Port of departureSouthampton, United Kingdom
Port of returnSouthampton, United Kingdom
PurposeResearch
ObjectivesThe sixth of a series of cruises within a 3-year contract, BENGAL, funded under the MAST III programme of the EU to study seasonal changes in the Abyssal benthos. The cruise programme was designed to complete a full seasonal sampling programme at a single, Abyssal locality on the Porcupine Abyssal Plain. The last short cruise of the BENGAL project (D237) aimed to fill the gaps in seasonal sampling of sediment and fauna, and to recover long-term moorings.
Chief scientistMyriam Sibuet (IFREMER, Brest)
ProjectMASTIII-BENGAL
Coordinating bodySOC
Cruise reportRRS Discovery D237 cruise report d237.pdf — access key 'C' (2.15 MB) 
Ocean/sea areas 
GeneralNorth East Atlantic Ocean (limit 40W)
SpecificPorcupine Abyssal Plain
Measurements 
Physical oceanography 
Water bottle stationsQuantity: number of stations = 2
Description: Deep casts using CTD, transmissometer, nephelometer and bottles (4850m)
Water bottle stationsQuantity: number of stations = 2
Description: Shallow casts using CTD transmissometer, nephelometer and bottles
CTD stationsQuantity: number of stations = 2
Description: Deep casts using CTD, transmissometer, nephelometer and bottles (4850m)
CTD stationsQuantity: number of stations = 2
Description: Shallow casts using CTD transmissometer, nephelometer and bottles
Transparency (eg transmissometer)Quantity: number of stations = 2
Description: Shallow casts using CTD transmissometer, nephelometer and bottles
Transparency (eg transmissometer)Quantity: number of stations = 2
Description: Deep casts using CTD, transmissometer, nephelometer and bottles (4850m)
Other physical oceanographic measurementsQuantity: number of stations = 2
Description: Shallow casts using CTD transmissometer, nephelometer and bottles
Other physical oceanographic measurementsQuantity: number of stations = 2
Description: Deep casts using CTD, transmissometer, nephelometer and bottles (4850m)
Biology and fisheries 
ZoobenthosQuantity: number of stations = 5
Description: Multiple corer (12, 57mm cores/ station)
ZoobenthosQuantity: number of stations = 5
Description: Plain box USNEL corer (one unsuccessful)
ZoobenthosQuantity: number of hauls = 2
Description: Beam trawl
ZoobenthosQuantity: number of stations = 4
Description: USNEL (vegematic) corer
ZoobenthosQuantity: number of hauls = 2
Description: Otter trawl (semi balloon)
Geology and geophysics 
Core - soft bottomQuantity: number of stations = 4
Description: USNEL (vegematic) corer
Core - soft bottomQuantity: number of stations = 5
Description: Plain box USNEL corer (one unsuccessful)
Core - soft bottomQuantity: number of stations = 5
Description: Multiple corer (12, 57mm cores/ station)
Moorings, landers, buoys 
Physical oceanography 
Transparency (eg transmissometer)48° 49' 59" N  16° 30' 0" W — Recovered MAP (Module Autonome Pluridisciplinaire) laid 04/03/1998 (all within 20 nmiles)
Current meters48° 49' 59" N  16° 30' 0" W — Recovered MAP (Module Autonome Pluridisciplinaire) laid 04/03/1998 (all within 20 nmiles)
Other physical oceanographic measurements48° 49' 59" N  16° 30' 0" W — Recovered MAP (Module Autonome Pluridisciplinaire) laid 04/03/1998 (all within 20 nmiles)
Biology and fisheries 
Sediment traps48° 49' 59" N  16° 30' 0" W — Recovered MAP (Module Autonome Pluridisciplinaire) laid 04/03/1998 (all within 20 nmiles)
Zoobenthos48° 55' 1" N  16° 27' 54" W — Recovered MAC recolonisation expt.
Data held at BODC 
Discrete samples 
4  CTD frame plus rosette samplerRaw suspended particulate material concentration sensor output
Raw fluorometer output
Salinity of the water column
Temperature of the water column