Cruise inventory

RV Lough Foyle LF/18/97

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Lough Foyle (74LG)
Cruise identifierLF/18/97
Cruise period1997-04-28 — 1997-05-06
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 on the spring bloom and quantify the flux of particulate organic carbon to the benthos. Detailed objectives were to:
1. Quantify phytoplankton production in two size fractions (whole and <5.0um).
2. Estimate copepod grazing.
3. Collect samples of phytoplankton and zooplankton for later identification and enumeration.
4. Collect sediment samples for the determination of sediment pigment concentration.
5. Collect water samples for the determination of particulate aluminium and dissolved inorganic nutrients.
6. Service the DANI moorings.
Chief scientistRichard Gowen (Department of Agriculture for Northern Ireland)
Cruise reportRV Lough Foyle LF/18/97 cruise report lf18_97.pdf — access key 'C' (0.09 MB) 
Ocean/sea areas 
GeneralIrish Sea and St. George's Channel
SpecificWestern Irish Sea and Liverpool Bay.
Track chartsRV Lough Foyle LF/18/97 cruise track — lf18_97track.pdf (00 MB) 
Measurements 
Biology and fisheries 
ZooplanktonQuantity: activity duration in days = 1
Description: Zooplankton collected in a vertical haul net every 3 hours, for 24 hours. Allowing estimates to be made about copepod gut pigment content.
ZooplanktonQuantity: activity duration in days = 1
Description: Hauls using a ring net every 3 hours for 24 hours, allowing grazing and production studies to be carried out.
CrustaceansQuantity: activity duration in days = 1
Description: Zooplankton collected in a vertical haul net every 3 hours, for 24 hours. Allowing estimates to be made about copepod gut pigment content.