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RV Lough Foyle LF/43/97

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Lough Foyle (74LG)
Cruise identifierLF/43/97
Cruise period1997-10-20 — 1997-10-23
StatusCompleted
Port of departureBelfast, United Kingdom
Port of returnBelfast, United Kingdom
PurposeFisheries
ObjectivesDouglas Bank herring
1. To determine the distribution, biomass and population structure of herring on the Douglas Bank spawning ground.
2. To investigate the distribution, production, growth and mortality of herring larvae on the Douglas Bank spawning ground.
Chief scientistMark Dickey-Collas (Department of Agriculture for Northern Ireland)
Cruise reportRV Lough Foyle LF/43/97 cruise report lf43_97.pdf (0.10 MB) 
Ocean/sea areas 
GeneralIrish Sea and St. George's Channel
SpecificDouglas Bank, Irish Sea
Measurements 
Biology and fisheries 
ZooplanktonQuantity: number of stations = 12
Description: 12 plankton stations samples were taken.
ZooplanktonQuantity: number of stations = 1
Description: The remaining plankton stations were sampled. No. of stations not specified.
Demersal fishQuantity: number of surveys = 1
Description: An acoustic survey took place surveying the largest patch of adult herring.
Demersal fishQuantity: number of surveys = 2
Description: Two trawls were made during the first phase of the acoustic survey.
Demersal fishQuantity: number of surveys = 1
Description: To determine the distribution, biomass and population of herring and herring larvae. A survey of the northern transect.