Cruise inventory

RV Lough Foyle LF/23/91

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Lough Foyle (74LG)
Cruise identifierLF/23/91
Cruise period1991-09-16 — 1991-09-27
StatusCompleted
Port of departureBelfast, United Kingdom
Port of returnBelfast, United Kingdom
PurposeFisheries
ObjectivesGroundfish survey of juvenile demersal fish
1. To obtain indices of abundance of 0-year-old and 1-year-old whiting, cod, hake and haddock by means of a stratified trawl survey in the north-western Irish Sea, for use in ICES stock assessment procedures.
2. To carry out a series of comparative trawls with the MAFF vessel Corystes to investigate the relative fishing power of the two vessels.
3. To obtain further information on patterns of abundance, size-composition and diet of groundfish species in the north-western Irish Sea.
Chief scientistMike Armstrong (Department of Agriculture for Northern Ireland)
Cruise reportRV Lough Foyle LF/23/91 cruise report lf23_91.pdf — access key 'C' (0.34 MB) 
Ocean/sea areas 
GeneralIrish Sea and St. George's Channel
SpecificNW Irish Sea, North Channel
Track chartsRV Lough Foyle LF/23/91 cruise track — lf23_91track.pdf (0.12 MB) 
Measurements 
Biology and fisheries 
Demersal fishQuantity: number of hauls = 4
Description: Station 73, 89, 208 and 78 were all fished.
Demersal fishQuantity: number of hauls = 4
Description: Trawl stations 83, 17, 70 and 80 completed in deteriorating weather conditions
Demersal fishQuantity: number of hauls = 5
Description: Comparative tows were carried out at stations 203, 88, 87, 11 and 71.
Demersal fishQuantity: number of hauls = 5
Description: Stations 101, 100, 81, 86 and 35 were completed in good conditions.
Demersal fishQuantity: number of hauls = 1
Description: Station 95 was fished, but then due to deteriorating weather the ship had to anchor.
Demersal fishQuantity: number of hauls = 5
Description: Station 90 was fished successfully and despite high winds 50, 98, 96 and 51 were also fished successfully.
Demersal fishQuantity: number of hauls = 6
Description: Stations 216, 48, 99, 46, 97 and 205 were fished in calm weather.
Demersal fishQuantity: number of hauls = 6
Description: Tows at stations 79, 75, 92, 91, 56 and 93 yielded 970 of fish.