Cruise inventory

RRS Discovery D226

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS Discovery (74E3)
Cruise identifierD226
Cruise period1997-03-12 — 1997-04-10
StatusCompleted
Port of departureVigo, Spain
Port of returnVigo, Spain
PurposeResearch
ObjectivesThe second of a series of five cruises to the same area within an EU MAST-funded programme (Bengal) to study seasonal changes in the Abyssal benthos. All sampling was undertaken within 10-15 nautical miles of 48° 50'N 16° 30'W.
Chief scientistAnthony L Rice (Southampton Oceanography Centre)
ProjectBENGAL/MAST III
Coordinating bodySOC
Cruise reportRRS Discovery D226 cruise report d226.pdf — access key 'C' (4.80 MB) 
Ocean/sea areas 
GeneralNorth East Atlantic Ocean (limit 40W)
SpecificPorcupine Abyssal Plain
Measurements 
Physical oceanography 
Water bottle stationsQuantity: number of profiles = 10
Description: CTD casts with oxygen, transmission and fluorescence sensors
CTD stationsQuantity: number of profiles = 10
Description: CTD casts with oxygen, transmission and fluorescence sensors
Biology and fisheries 
Particulate organic matter (inc POC, PON)Quantity: number of profiles = 6
Description: Shallow (100m) marine snow profile camera drops
Particulate organic matter (inc POC, PON)Quantity: number of profiles = 2
Description: Full ocean depth (4840m) marine snow profile camera drops (on CTD)
Biochemical measurements (eg lipids, amino acids)Quantity: number of deployments = 14
Description: Box corer, for sediment chemistry and biology
Biochemical measurements (eg lipids, amino acids)Quantity: number of deployments = 20
Description: Multiple corer, for sediment chemistry and biology
Biochemical measurements (eg lipids, amino acids)Quantity: number of deployments = 2
Description: Kasten corer
ZooplanktonQuantity: number of hauls = 4
Description: MOCNESS 1m2 near bottom hauls
ZoobenthosQuantity: number of hauls = 3
Description: SOC semi-balloon otter trawl (OTSB)
ZoobenthosQuantity: number of deployments = 14
Description: Box corer, for sediment chemistry and biology
ZoobenthosQuantity: number of deployments = 20
Description: Multiple corer, for sediment chemistry and biology
ZoobenthosQuantity: number of deployments = 2
Description: Kasten corer
ZoobenthosQuantity: number of hauls = 4
Description: IFREMER beam trawl
Moorings, landers, buoys 
Chemical oceanography 
Oxygen48° 49' 59" N  16° 30' 0" W — Laid and recovered 5 x NIOZ lander (within 10 nmiles)
Biology and fisheries 
Biochemical measurements (eg lipids, amino acids)48° 49' 59" N  16° 30' 0" W — Laid and recovered 5 x DEMAR (bottom amphipod trap) and 2 x BIOFEED moorings (sediment enrichment expts) - within 10 nmiles - one lost
Biochemical measurements (eg lipids, amino acids)48° 49' 59" N  16° 30' 0" W — Laid and recovered 5 x NIOZ lander (within 10 nmiles)
Sediment traps48° 54' 59" N  16° 31' 59" W — Laid short sediment trap mooring for recovery in July 1997 (Discovery 229)
Sediment traps49° 0' 0" N  16° 18' 0" W — Laid sediment trap mooring for recovery in July 1997 (Discovery 229)
Sediment traps49° 0' 0" N  16° 18' 0" W — Recovered sediment trap mooring laid Sep 1996
Benthic bacteria/micro-organisms48° 49' 59" N  16° 30' 0" W — Laid and recovered 5 x DEMAR (bottom amphipod trap) and 2 x BIOFEED moorings (sediment enrichment expts) - within 10 nmiles - one lost
Zoobenthos48° 49' 59" N  16° 30' 0" W — Laid and recovered 5 x DEMAR (bottom amphipod trap) and 2 x BIOFEED moorings (sediment enrichment expts) - within 10 nmiles - one lost
Zoobenthos48° 49' 59" N  16° 30' 0" W — Laid and recovered 5 x NIOZ lander (within 10 nmiles)
Zoobenthos48° 49' 59" N  16° 30' 0" W — Laid and recovered 4 x LATER column amphipod trap mooring (within 10 nmiles)
Zoobenthos48° 55' 59" N  16° 31' 59" W — Laid MAC for recovery in Sep-Oct 1997
Zoobenthos48° 57' 0" N  16° 30' 59" W — Laid MAC for recovery in July 1997 (Discovery 229)
Zoobenthos48° 55' 59" N  16° 31' 59" W — Recovered recolonisation expt (MAC) laid Sep 1996
Zoobenthos48° 53' 59" N  16° 18' 0" W — Recovered time-lapse photography system (Bathysnap) laid Sep 1996
Zoobenthos48° 54' 59" N  16° 33' 59" W — Laid Bathysnap for recovery in July 1997 (Discovery 229)
Data held at BODC 
Discrete samples 
20  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