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- 17553
RRS James Cook JC190
Cruise plan
| Cruise Info. | |
| Ship name (ship code) | RRS James Cook (740H) |
| Cruise identifier | JC190 |
| Cruise period | 2019-11-17 — 2019-12-10 |
| Status | Completed |
| Port of departure | St. John's, Canada |
| Port of return | St. John's, Canada |
| Purpose | Research |
| Objectives | Objectives
To conduct a physical/biological oceanographic survey on the Newfoundland and Labrador Shelf to establish the autumn temporal and spatial distribution and abundance of biogeochemical properties, plant pigments, nutrients, microzooplankton and mesozooplankton in relation to the physical environment by: Measuring in-situ pressure, temperature, conductivity/salinity, oxygen, chlorophyll fluorescence, colored dissolved organic matter fluorescence (CDOM), transmissometry for particulate organic matter, pH, photosynthetic active radiation (PAR) profiles along standard sections from the inshore areas along the East Coast of Newfoundland and offshore across the St. Pierre Bank, Grand Banks of Newfoundland, Flemish Cap and Northeast Newfoundland and Southern Labrador shelf. Collecting water samples at standard depths for salinity, oxygen, pH and chlorophyll fluorescence calibrations and for biological analysis including macronutrient concentrations (e.g. dissolved phosphate, silicate, nitrate, ammonia levels) and particulate organic carbon and nitrogen. Collecting water samples at standard stations and depths for carbonate geochemistry for the determination of ocean acidification and saturation parameters. Conducting vertical plankton net tows for plankton taxonomic and biochemical analyses (including image and lipid analyses). Measuring ocean current profiles along and between standard stations and sections using ship mounted Acoustic Doppler Current Profiler (ADCP). To map the area surrounding the Station 27 T-S oceanographic mooring and recover (drag), refurbish and re-deploy if possible. To deploy the Station 27 AZFP mooring. To deploy the Station 27 AZMP-STA27 Viking buoy. To recover, refurbish and re-deploy two moorings in the Laurentian Channel MPA in support of DFO NL Oceans section. Map the area surrounding a third mooring in the region and recover (drag) if possible. To recover, refurbish and re-deploy two OSNAP moorings in Southern Labrador. To deploy two MM-AMAR acoustic listening moorings in support of DFO NL Marine Mammals section, one on the tail of Grand Banks of Newfoundland and one in the Flemish Pass. To deploy 4 ARGO floats in support of Canada's contribution to the international ARGO program. To capture multibeam data along and between standard stations and sections in support of the Canadian Hydrographic Service, NL region. To fully occupy one oceanographic station in Placentia Bay in support of the DFO NL Ecosystems section. To observe and record the distribution and abundance of pelagic sea birds. |
| Chief scientist | Sara Lewis (Fisheries and Oceans Canada, Institute of Ocean Sciences) |
| Ocean/sea areas | |
| General | Labrador Sea (Davis Strait) |
| Specific | Newfoundland and Labrador Shelf |
