RV Lough Foyle LF/11/91

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Lough Foyle (74LG)
Cruise identifierLF/11/91
Cruise period1991-05-06 — 1991-05-09
ObjectivesSurface mud samples were taken for dinoflagellate cysts. The Day Grab was deployed at Beaufort's Dyke in 240m water, however, on recovering the grab, a shackle used to join the cable on the previous DAFS cruise jammed in the winch and the cable immediately snapped, losing the grab. There was no spare grab, so no further samples were possible.
Light profiles and depth profiles were taken.
Chief scientistChris E Gibson (Department of Agriculture for Northern Ireland)
Cruise reportRV Lough Foyle LF/11/91 cruise report lf11_91.pdf (0.05 MB) 
Ocean/sea areas 
GeneralIrish Sea and St. George's Channel
SpecificIrish Sea and North Channel
Bottom depositsQuantity: number of deployments = 1
Description: Jenkin sampler
Geology and geophysics 
GrabQuantity: number of deployments = 1
Description: Day grab in 240m water
Moorings, landers, buoys 
Biology and fisheries 
Phytoplankton pigs (eg chlorophyll, fluorescence)54° 0' 48" N  5° 9' 57" W — Depth profiles and Bongo net tows carried out to investigate fluorescence
Occasional standard measurements53° 27' 11" N  5° 12' 5" W — Depth profile taken