Cruise inventory

FRV Clupea 1597C

Cruise summary report

Cruise Info. 
Ship name (ship code)FRV Clupea (74CU)
Cruise identifier1597C
Cruise period1997-09-10 — 1997-09-19
StatusCompleted
Port of departureFraserburgh, United Kingdom
Port of returnFraserburgh, United Kingdom
Objectives1. To carry out an echo-integrator survey to determine the biomass and distribution of pelagic fish in an area off the Firth of Forth encompassing the Wee Bankie and Marr Bank sandeel grounds.
2. To sample areas with high densities of pelagic fish using a pelagic trawl in order to determine fish species, size and age composition and weight-length relationships.
3. To map seabed sediments using RoxAnn, an acoustic survey technique, with associated sediment sampling by Day grab to "groundtruth" the acoustic data.
4. To determine spatial variation in water temperature and salinity depth profiles using a Seabird CTD instrument.
5. To determine the numbers and distribution of avian and mammalian predators in the study area using transect census methods.
6.To determine the abundance and distribution of piscivorous demersal fish species by bottom trawl survey.
7. To assess the length and age composition of these piscivorous fish predators, together with their age-length and length-weight relationships, and to collect stomach samples for diet and food consumption analysis. Also, to examine the livers and gonads (where possible) of these demersal fish for assessment of body condition.
Chief scientistSimon Greenstreet (Fisheries Research Services Aberdeen Marine Laboratory)
Cruise reportFRV Clupea 1597C cruise report cl15_97.pdf — access key 'C' (0.12 MB) 
Ocean/sea areas 
GeneralNorth Sea
SpecificFirth of Forth; Wee Bankie; Marr Bank
Track chartsFRV Clupea 1597C cruise track — trk4327.html
Measurements 
Physical oceanography 
CTD stationsQuantity: number of profiles = 15
Description: SBE CTD dips
Biology and fisheries 
BirdsQuantity: track kilometres = 500.04
Description: Bird observations.
Mammals and reptilesQuantity: track kilometres = 500.04
Description: all casual sightings of seals and cetaceans were noted.
Pelagic fishQuantity: number of hauls = 2
Description: International Young Gadoid Pelagic Trawl.
Demersal fishQuantity: number of hauls = 15
Description: Demersal trawl hauls
Geology and geophysics 
GrabQuantity: number of samples = 15
Description: Day Grabs
Other geological/geophysical measurementsQuantity: track kilometres = 500.04
Description: RoxAnn
Data held at BODC 
Series/Profiles 
15  CTD/STD cast
Electrical conductivity of the water column
Vertical spatial coordinates
Salinity of the water column
Temperature of the water column
Reference numbers
Electrical conductivity of the water column
Vertical spatial coordinates
Salinity of the water column
Temperature of the water column
Reference numbers

BODC idDate/TimeLocationDoc.
4805311997-09-18 07:23 56° 22' 27" N  1° 59' 49" W  View metadata report for BODC series reference number 480531
4805431997-09-18 08:10 56° 27' 56" N  2° 6' 13" W  View metadata report for BODC series reference number 480543
4803831997-09-14 14:08 56° 27' 29" N  2° 28' 57" W  View metadata report for BODC series reference number 480383
4803951997-09-14 15:38 56° 17' 17" N  2° 13' 31" W  View metadata report for BODC series reference number 480395
4804021997-09-15 14:25 56° 1' 46" N  1° 59' 48" W  View metadata report for BODC series reference number 480402
4804141997-09-16 06:10 56° 7' 51" N  2° 33' 14" W  View metadata report for BODC series reference number 480414
4804261997-09-16 08:57 56° 14' 25" N  2° 20' 21" W  View metadata report for BODC series reference number 480426
4804381997-09-16 11:18 56° 12' 44" N  1° 58' 49" W  View metadata report for BODC series reference number 480438
4804511997-09-16 12:15 56° 9' 4" N  1° 50' 35" W  View metadata report for BODC series reference number 480451
4804631997-09-16 17:02 56° 6' 49" N  2° 9' 58" W  View metadata report for BODC series reference number 480463
4804751997-09-17 07:08 56° 2' 12" N  1° 43' 10" W  View metadata report for BODC series reference number 480475
4804871997-09-17 09:48 56° 7' 53" N  1° 29' 15" W  View metadata report for BODC series reference number 480487
4804991997-09-17 12:26 56° 15' 34" N  1° 32' 58" W  View metadata report for BODC series reference number 480499
4805061997-09-17 15:23 56° 17' 17" N  1° 50' 13" W  View metadata report for BODC series reference number 480506
4805181997-09-17 17:45 56° 27' 45" N  1° 49' 58" W  View metadata report for BODC series reference number 480518