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RV Lough Foyle LF/23/97
Cruise summary report
Cruise Info. | |
Ship name (ship code) | RV Lough Foyle (74LG) |
Cruise identifier | LF/23/97 |
Cruise period | 1997-06-01 — 1997-06-06 |
Status | Completed |
Port of departure | Belfast, United Kingdom |
Port of return | Belfast, United Kingdom |
Purpose | Research |
Objectives | The objectives of this cruise were to study the impact of copepod grazing at the end of the spring bloom, and service the DANI moorings. Detailed objectives were to:
1. Quantify phytoplankton production in two size fractions (whole and <5.0um). 2. Estimate copepod grazing. 3. Collect phytoplankton and zooplankton for species identification and enumeration. 4. Collect sediment samples for determination of sediment pigment concentration. 5. Collect water samples for the determination of particulate aluminium and dissolved inorganic nutrients. 6. Service the DANI moorings. The particle trap mooring was recovered and serviced. The automated sampler mooring was recovered, serviced and redeployed. |
Chief scientist | Richard Gowen (Department of Agriculture for Northern Ireland) |
Cruise report | ![]() |
Ocean/sea areas | |
General | Irish Sea and St. George's Channel |
Specific | Wesetern Irish Sea and Liverpool Bay. |
Track charts | ![]() |
Measurements | |
Physical oceanography | |
Subsurface temperature and salinity measurements | Quantity: number of stations = 3 Description: Process stations |
Chemical oceanography | |
Total - P | Quantity: number of stations = 3 Description: Process stations. |
Nitrate | Quantity: number of stations = 3 Description: Process stations. Samples were collected from 3 separate CTD dips carried out over 2 days |
Silicate | Quantity: number of stations = 3 Description: Process stations. |
Biology and fisheries | |
Primary productivity | Quantity: number of stations = 3 Description: Process stations. Phytoplankton biomass |
Phytoplankton pigs (eg chlorophyll, fluorescence) | Quantity: number of stations = 3 Description: Process stations. Near surface concentrations taken |
Zooplankton | Quantity: number of stations = 3 Description: Process stations |