Cruise inventory

RRS Discovery D229

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS Discovery (74E3)
Cruise identifierD229
Cruise period1997-07-02 — 1997-07-31
StatusCompleted
Port of departureVigo, Spain
Port of returnVigo, Spain
PurposeResearch
ObjectivesThe third of a series of five cruises to the Porcupine Abyssal Plain, in an EU MAST funded programme (BENGAL), to study seasonal changes in the benthic environment. All sampling was undertaken within 20 nmiles of 48° 50'N 16° 30'W.
Chief scientistBrian James Bett (Southampton Oceanography Centre)
ProjectBENGAL/MAST III
Coordinating bodySOC
Cruise reportRRS Discovery D229 cruise report d229.pdf — access key 'C' (5.70 MB) 
Ocean/sea areas 
GeneralNorth East Atlantic Ocean (limit 40W)
SpecificPorcupine Abyssal Plain
Measurements 
Physical oceanography 
Water bottle stationsQuantity: number of profiles = 22
Description: CTD with water bottles, oxygen, transmission and flurescence sensors
CTD stationsQuantity: number of profiles = 22
Description: CTD with water bottles, oxygen, transmission and flurescence sensors
Transparency (eg transmissometer)Quantity: number of profiles = 22
Description: CTD with water bottles, oxygen, transmission and flurescence sensors
Chemical oceanography 
OxygenQuantity: number of profiles = 22
Description: CTD with water bottles, oxygen, transmission and flurescence sensors
RadioactivityQuantity: number of deployments = 6
Description: Bottom water sampler (near bottom pump sampler)
Biology and fisheries 
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: number of deployments = 6
Description: Bottom water sampler (near bottom pump sampler)
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: number of deployments = 20
Description: Multiple corer, various sediment chemistry and biology measures
Particulate organic matter (inc POC, PON)Quantity: number of deployments = 20
Description: Multiple corer, various sediment chemistry and biology measures
Particulate organic matter (inc POC, PON)Quantity: number of profiles = 3
Description: SAPS (stand alone pumping sytem)
Particulate organic matter (inc POC, PON)Quantity: number of deployments = 6
Description: Bottom water sampler (near bottom pump sampler)
Particulate organic matter (inc POC, PON)Quantity: number of profiles = 2
Description: MSP (marine snow profiler), camera mounted on CTD
Biochemical measurements (eg lipids, amino acids)Quantity: number of deployments = 20
Description: Multiple corer, various sediment chemistry and biology measures
Pelagic bacteria/micro-organismsQuantity: number of profiles = 3
Description: SAPS (stand alone pumping sytem)
Benthic bacteria/micro-organismsQuantity: number of deployments = 6
Description: Bottom water sampler (near bottom pump sampler)
Benthic bacteria/micro-organismsQuantity: number of deployments = 20
Description: Multiple corer, various sediment chemistry and biology measures
ZoobenthosQuantity: number of hauls = 4
Description: OTSB (semi-balloon otter trawl)
ZoobenthosQuantity: number of deployments = 18
Description: Box corer
ZoobenthosQuantity: number of deployments = 20
Description: Multiple corer, various sediment chemistry and biology measures
ZoobenthosQuantity: number of deployments = 2
Description: Kasten corer
ZoobenthosQuantity: number of hauls = 4
Description: Beam trawl
ZoobenthosQuantity: number of hauls = 2
Description: Epibenthic sledge
Demersal fishQuantity: number of hauls = 4
Description: Beam trawl
Demersal fishQuantity: number of hauls = 4
Description: OTSB (semi-balloon otter trawl)
Geology and geophysics 
Core - soft bottomQuantity: number of deployments = 2
Description: Kasten corer
Core - soft bottomQuantity: number of deployments = 18
Description: Box corer
Core - soft bottomQuantity: number of deployments = 20
Description: Multiple corer, various sediment chemistry and biology measures
Bottom photographyQuantity: number of deployments = 4
Description: WASP (wide angle survey photography)
Moorings, landers, buoys 
Physical oceanography 
CTD stations48° 49' 59" N  16° 30' 0" W — 1 x BIOFEED, enrichment expt and 5 x DEMAR (amphipod trap) + CTD - (within 20 nmiles)
Chemical oceanography 
Oxygen48° 49' 59" N  16° 30' 0" W — 8 x Benthic lander and 1 x sediment trap - (within 20 nmiles)
Biology and fisheries 
Particulate organic matter (inc POC, PON)48° 49' 59" N  16° 30' 0" W — 1 x MSAPS (Moored Stand-Alone Pumping System) - (within 20 nmiles)
Biochemical measurements (eg lipids, amino acids)48° 49' 59" N  16° 30' 0" W — Deployed BIOFEED, enrichment expt (to September 1997), Bathysnap - time-lapse camera - (to March 1998) and sediment traps (to September 1997) - (within 20 nmiles)
Biochemical measurements (eg lipids, amino acids)48° 49' 59" N  16° 30' 0" W — 1 x BIOFEED, enrichment expt and 5 x DEMAR (amphipod trap) + CTD - (within 20 nmiles)
Biochemical measurements (eg lipids, amino acids)48° 49' 59" N  16° 30' 0" W — 8 x Benthic lander and 1 x sediment trap - (within 20 nmiles)
Sediment traps48° 49' 59" N  16° 30' 0" W — 8 x Benthic lander and 1 x sediment trap - (within 20 nmiles)
Sediment traps48° 49' 59" N  16° 30' 0" W — Recovered sediment traps - deployed March 1997 - (within 20 nmiles)
Sediment traps48° 49' 59" N  16° 30' 0" W — Recovered Bathysnap (time lapse camera) - deployed April 1997 and a sediment trap - deployed March 1997 - (within 20 nmiles)
Sediment traps48° 49' 59" N  16° 30' 0" W — Deployed BIOFEED, enrichment expt (to September 1997), Bathysnap - time-lapse camera - (to March 1998) and sediment traps (to September 1997) - (within 20 nmiles)
Sediment traps48° 49' 59" N  16° 30' 0" W — Deployed BIOFEED, enrichment expt. - to March 1998 - (within 20 nmiles)
Benthic bacteria/micro-organisms48° 49' 59" N  16° 30' 0" W — 1 x MSAPS (Moored Stand-Alone Pumping System) - (within 20 nmiles)
Benthic bacteria/micro-organisms48° 49' 59" N  16° 30' 0" W — Deployed BIOFEED, enrichment expt (to September 1997), Bathysnap - time-lapse camera - (to March 1998) and sediment traps (to September 1997) - (within 20 nmiles)
Benthic bacteria/micro-organisms48° 49' 59" N  16° 30' 0" W — 1 x BIOFEED, enrichment expt and 5 x DEMAR (amphipod trap) + CTD - (within 20 nmiles)
Zoobenthos48° 49' 59" N  16° 30' 0" W — Deployed BIOFEED, enrichment expt (to September 1997), Bathysnap - time-lapse camera - (to March 1998) and sediment traps (to September 1997) - (within 20 nmiles)
Zoobenthos48° 49' 59" N  16° 30' 0" W — Recovered Bathysnap (time lapse camera) - deployed April 1997 and a sediment trap - deployed March 1997 - (within 20 nmiles)
Zoobenthos48° 49' 59" N  16° 30' 0" W — 8 x Benthic lander and 1 x sediment trap - (within 20 nmiles)
Zoobenthos48° 49' 59" N  16° 30' 0" W — Deployed MAC, recolonisation expt. (to March 1998) - (within 20 nmiles)
Zoobenthos48° 49' 59" N  16° 30' 0" W — 1 x BIOFEED, enrichment expt and 5 x DEMAR (amphipod trap) + CTD - (within 20 nmiles)
Zoobenthos48° 49' 59" N  16° 30' 0" W — Recovered MAC, recolonisation expt. - deployed March 1997 - (within 20 nmiles)
Data held at BODC 
Discrete samples 
22  CTD frame plus rosette samplerDensity of the water column
Transmittance and attenuance of the water column
Chlorophyll pigment concentrations in water bodies
Raw fluorometer output
Salinity of the water column
Temperature of the water column
Dissolved oxygen parameters in the water column