- Resources
- Inventories
- Cruise inventory
- Report
- 5941
RV Pelagia PE118
Cruise summary report
Cruise Info. | |||||||||||||||||||||||||||||||||
Ship name (ship code) | RV Pelagia (64PE) | ||||||||||||||||||||||||||||||||
Cruise identifier | PE118 | ||||||||||||||||||||||||||||||||
Cruise period | 1998-05-25 — 1998-06-12 | ||||||||||||||||||||||||||||||||
Status | Completed | ||||||||||||||||||||||||||||||||
Port of departure | Het Horntje, Netherlands | ||||||||||||||||||||||||||||||||
Port of return | Het Horntje, Netherlands | ||||||||||||||||||||||||||||||||
Purpose | Research | ||||||||||||||||||||||||||||||||
Objectives | OMEX-98. Biology expedition to NW Spain.
Objectives: 1. To study the distribution and activity of organisms living on the sea floor off NW Spain and of the organic matter and biomarker concentrations in sediments. 2. To seek further evidence of relatively high input and respiratory activity and biomass at the abyssal station. 3. To comparate measurements at two other deep statioons - one away from the continental shelf and one near the channel between Galicia and the Galicia Bank. 4. To make a comparative study on the coral Lophelia living on the Iberian slope and on the Galicia Bank. Narrative: At each station a CTD profile of the water column was made and samples of near-bottom water for oxygen and phytopigment analysis were collected. Sediment samples were collected with a box- or multi-corer for the analysis of: macrofauna, meiofauna, phytopigments, C/N and porosity. Megafauna was collected with a video-Agassiz trawl recording the small-scale topography of the sea floor. Trawling was preceded by a small-scale survey with 3.5kHz echosounder. Whole sediment community oxygen consumption (SCOC) was measured in-situ with a modular bottom lander. At one station SCOC was additionally measured on board in 30cm incubated cores. | ||||||||||||||||||||||||||||||||
Chief scientist | Marc Lavaleye (Royal Netherlands Institute for Sea Research) | ||||||||||||||||||||||||||||||||
Project | OMEX-II | ||||||||||||||||||||||||||||||||
Cruise report | (1.66 MB) | ||||||||||||||||||||||||||||||||
Ocean/sea areas | |||||||||||||||||||||||||||||||||
General | Celtic Sea North East Atlantic Ocean (limit 40W) | ||||||||||||||||||||||||||||||||
Track charts | (0.03 MB) | ||||||||||||||||||||||||||||||||
Measurements | |||||||||||||||||||||||||||||||||
Physical oceanography | |||||||||||||||||||||||||||||||||
Subsurface temperature and salinity measurements | Quantity: number of profiles = 7 Description: CTD | ||||||||||||||||||||||||||||||||
Chemical oceanography | |||||||||||||||||||||||||||||||||
Oxygen | Quantity: number of deployments = 8 Description: benthic lander; oxygen. Depth range: 2268-4945m. | ||||||||||||||||||||||||||||||||
Other chemical oceanographic measurements | Quantity: number of deployments = 1 Description: Aquaflow, depth range: 774-4951m | ||||||||||||||||||||||||||||||||
Biology and fisheries | |||||||||||||||||||||||||||||||||
Sediment traps | Quantity: number of deployments = 1 Description: PPS3 sediment trap. Depth range: 4908m | ||||||||||||||||||||||||||||||||
Geology and geophysics | |||||||||||||||||||||||||||||||||
Dredge | Quantity: number of deployments = 6 Description: Agassiz trawl and video. Depth range: 770-4945m | ||||||||||||||||||||||||||||||||
Core - soft bottom | Quantity: number of cores = 5 Description: box corer; 30cm diameter. depth range: 2267-4915m. | ||||||||||||||||||||||||||||||||
Core - soft bottom | Quantity: number of cores = 11 Description: box corer; 50cm diameter, depth range: 772-4945m. | ||||||||||||||||||||||||||||||||
Core - soft bottom | Quantity: number of cores = 10 Description: multicorer, depth range: 774-4951m | ||||||||||||||||||||||||||||||||
Bottom photography | Quantity: number of deployments = 6 Description: Agassiz trawl and video. Depth range: 770-4945m | ||||||||||||||||||||||||||||||||
Bottom photography | Quantity: number of deployments = 6 Description: UW video camera on cable. Depth range: 694-1100m. | ||||||||||||||||||||||||||||||||
Data held at BODC | Get data | ||||||||||||||||||||||||||||||||
Series/Profiles | |||||||||||||||||||||||||||||||||
1 Bottle station | Reference numbers Vertical spatial coordinates Quality control flags Chlorophyll pigment concentrations in water bodies Reference numbers Vertical spatial coordinates Quality control flags Chlorophyll pigment concentrations in water bodies
| ||||||||||||||||||||||||||||||||
7 CTD/STD cast | Transmittance and attenuance of the water column Salinity of the water column Temperature of the water column Vertical spatial coordinates Density of the water column Transmittance and attenuance of the water column Salinity of the water column Temperature of the water column Vertical spatial coordinates Density of the water column
| ||||||||||||||||||||||||||||||||
Discrete samples | |||||||||||||||||||||||||||||||||
3 Bottom Lander | Zoobenthos taxonomic abundance Zoobenthos taxonomy-related wet weight biomass per unit area of the bed Other fluxes between the bed and the water column Zoobenthos generic abundance Sedimentation flux of pigments in the water column | ||||||||||||||||||||||||||||||||
13 Box core | Zoobenthos taxonomic abundance Zoobenthos taxonomy-related wet weight biomass per unit area of the bed Zoobenthos generic abundance | ||||||||||||||||||||||||||||||||
7 CTD frame plus rosette sampler | Transmittance and attenuance of the water column Salinity of the water column Temperature of the water column Dissolved oxygen parameters in the water column Density of the water column Chlorophyll pigment concentrations in water bodies | ||||||||||||||||||||||||||||||||
9 Multicorer | Zoobenthos taxonomic abundance Zoobenthos taxonomy-related wet weight biomass per unit area of the bed Phaeopigment concentrations in sediment Zoobenthos generic abundance Sediment water content, porosity and surface area Chlorophyll pigment concentrations in sediment Sediment grain size parameters Nitrogen concentrations in sediment Carbon concentrations in sediment |