Cruise inventory

RV Lough Foyle LF/23/97

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Lough Foyle (74LG)
Cruise identifierLF/23/97
Cruise period1997-06-01 — 1997-06-06
StatusCompleted
Port of departureBelfast, United Kingdom
Port of returnBelfast, United Kingdom
PurposeResearch
ObjectivesThe 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 scientistRichard Gowen (Department of Agriculture for Northern Ireland)
Cruise reportRV Lough Foyle LF/23/97 cruise report lf23_97.pdf — access key 'C' (0.27 MB) 
Ocean/sea areas 
GeneralIrish Sea and St. George's Channel
SpecificWesetern Irish Sea and Liverpool Bay.
Track chartsRV Lough Foyle LF/23/97 cruise track — lf23_97track.pdf (00 MB) 
Measurements 
Physical oceanography 
Subsurface temperature and salinity measurementsQuantity: number of stations = 3
Description: Process stations
Chemical oceanography 
Total - PQuantity: number of stations = 3
Description: Process stations.
NitrateQuantity: number of stations = 3
Description: Process stations. Samples were collected from 3 separate CTD dips carried out over 2 days
SilicateQuantity: number of stations = 3
Description: Process stations.
Biology and fisheries 
Primary productivityQuantity: 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
ZooplanktonQuantity: number of stations = 3
Description: Process stations