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RRS Charles Darwin CD92A
Cruise summary report
Cruise Info. | |
Ship name (ship code) | RRS Charles Darwin (74AB) |
Cruise identifier | CD92A |
Cruise period | 1995-04-06 — 1995-04-13 |
Status | Completed |
Port of departure | Fairlie, United Kingdom |
Port of return | Dunstaffnage, United Kingdom |
Purpose | Research |
Objectives | 1. To identify suitable sites on the LOIS northern mooring line for benthic process studies at depths of approx 400, 700, 1000 and 1500 metres.
2. To carry out the first set of process measurements in the LOIS study at these sites. |
Chief scientist | S Martyn Harvey (Dunstaffnage Marine Laboratory) |
Project | LOIS - SES Ellett Line |
Coordinating body | NERC |
Cruise report | (0.63 MB) |
Ocean/sea areas | |
General | North East Atlantic Ocean (limit 40W) |
Specific | Hebridean Shelf Edge: esp. 56-57N, 9-10W |
Track charts | |
Measurements | |
Physical oceanography | |
Water bottle stations | Quantity: number of stations = 4 Description: bottles depl. with reversing thermometers for use in incubations |
Chemical oceanography | |
Oxygen | Quantity: number of stations = 4 Description: bottles depl. with reversing thermometers for use in incubations |
Trace elements | Quantity: number of cores = 17 Description: on-deck incubations; sectioning for later analysis |
Radioactivity | Quantity: number of samples = 6 Description: 3x25l bottles filled from non-toxic supply |
Isotopes | Quantity: number of cores = 3 Description: Sholkovitz cores sectioned for later analysis |
Isotopes | Quantity: number of cores = 17 Description: on-deck incubations; sectioning for later analysis |
Biology and fisheries | |
Sediment traps | Quantity: number of cores = 17 Description: on-deck incubations; sectioning for later analysis |
Benthic bacteria/micro-organisms | Quantity: number of cores = 17 Description: on-deck incubations; sectioning for later analysis |
Zoobenthos | Quantity: number of cores = 8 Description: sifted for faunal size class analysis; sectioned for particle sizing |
Geology and geophysics | |
Core - soft bottom | Quantity: number of cores = 8 Description: sifted for faunal size class analysis; sectioned for particle sizing |
Bottom photography | Quantity: number of deployments = 3 Description: bed hop camera deployments |
Data held at BODC | |
Discrete samples | |
8 Box core | |
17 Multicorer | Concentration of organic matter in sediments Amino acids in sediment Other fluxes between the bed and the water column Concentration of aliphatic hydrocarbons in sediment samples Sediment pollen content Concentration of carbohydrates, phenols, alkanols (alcohols), ethers, aldehydes and ketones in sediment Sediment lipid concentrations Stable isotopes in sediment Geological sample density Geological sample radioactivity Sediment water content, porosity and surface area Concentration of inorganic sulphur species in sediment Carbon concentrations in sediment Sediment grain size parameters Nitrogen concentrations in sediment Inorganic chemical composition of sediment or rocks |
6 Sample taken from ship's non-toxic supply | Radioactivity in water bodies |
3 Sholkovitz Gravity Corer | Sediment age Stable isotopes in sediment Geological sample radioactivity |
3 Underwater camera system | |
4 Water bottle hydrocast |