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FRV Clupea 1199C

Cruise summary report

Cruise Info. 
Ship name (ship code)FRV Clupea (74CU)
Cruise identifier1199C
Cruise period1999-07-01 — 1999-07-19
StatusCompleted
Port of departureFraserburgh, United Kingdom
Port of returnFraserburgh, United Kingdom
ObjectivesTo carry out an acoustic survey, backed up by pelagic trawling, to determine the biomass and distribution of pelagic fish in an area off the Forth of Forth which included the Wee Bankie and Marr Bank. To assess the abundance and distribution of seabirds in the area using standard transect census techniques. To record the location of all marine mammals observed at sea. To map seabed sediment type using the acoustic system RoxAnn. To determine spatial variation in the water temperature and salinity profile within the study area. To carry out a bottom trawl survey to determine the abundance, distribution and length composition of piscivorous demersal fish species and to collect stomach samples from these fish to determine spatial variation in their diet. To determine weight-length relationships for each fish predator species, and examine spatial variation in fish condition. To collect live 0-group haddock for experimental work at the laboratory. To carry out a night-time grab survey, over sediments previously determined as suitable sandeel habitat, to assess sandeel abundance and distribution. The sediment samples collected during this survey will be used to assess the RoxAnn derived sandeel habitat map.
Chief scientistSimon Greenstreet (Fisheries Research Services Aberdeen Marine Laboratory)
Cruise reportFRV Clupea 1199C cruise report 1199c.pdf (2.99 MB) 
Ocean/sea areas 
GeneralNorth Sea
SpecificFirth of Forth
Track chartsFRV Clupea 1199C cruise track — 1199ctrack-2.pdf (0.56 MB)  FRV Clupea 1199C cruise track — 1199ctrack.pdf (0.69 MB) 
Measurements 
Physical oceanography 
CTD stationsQuantity: number of stations = 18
Description: CTD
Biology and fisheries 
BirdsQuantity: activity duration in days = 18
Description: Sea bird and marine mammal sightings
Mammals and reptilesQuantity: activity duration in days = 18
Description: Sea bird and marine mammal sightings
Pelagic fishQuantity: number of hauls = 6
Description: Trawl hauls, International Young Gadoid Trawl, Species composition, length, w eight, age
Demersal fishQuantity: number of hauls = 19
Description: Trawl hauls, Catch No. and length frequency and ditributions of all species
Acoustic reflection on marine organisms.Quantity: activity duration in days = 7
Description: EK500 with RoxAnn
Geology and geophysics 
GrabQuantity: number of samples = 206
Description: Sediment grab samples taken between 2030 and 0430 hours, Sediment particale size (RoxAnn calibration) and chemical composition. Sandeel no's
Single-beam echosoundingQuantity: activity duration in days = 7
Description: EK500 with RoxAnn