RV Lough Foyle LF/15/97

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Lough Foyle (74LG)
Cruise identifierLF/15/97
Cruise period1997-04-04 — 1997-04-10
Port of departureBelfast, United Kingdom
Port of returnBelfast, United Kingdom
ObjectivesThe two objectives of this cruise were to study the coupling between primary and secondary production at the start of the spring phytoplankton 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 <5.0 um).
2. Quantify the impact of zooplankton grazing on the phytoplankton community.
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/15/97 cruise report lf15_97.pdf (0.08 MB) 
Ocean/sea areas 
GeneralIrish Sea and St. George's Channel
SpecificWestern Irish Sea and Liverpool Bay.
Track chartsRV Lough Foyle LF/15/97 cruise track — lf15_97track.pdf (0.01 MB) 
Biology and fisheries 
ZooplanktonQuantity: activity duration in hours = 3
Description: Zooplankton were collected every 3 hours using a vertical haul net.
CrustaceansQuantity: activity duration in days = 1
Description: Copepod grazing experiment conduected over a 24 hour period