Cruise inventory

FRV Clupea 1798C

Cruise summary report

Cruise Info. 
Ship name (ship code)FRV Clupea (74CU)
Cruise identifier1798C
Cruise period1998-10-06 — 1998-10-16
StatusCompleted
Port of departureFraserburgh, United Kingdom
Port of returnFraserburgh, United Kingdom
ObjectivesTo carry out a night time grab survey, over sediments previously determined as suitable sandeel habitat, to assess sandeel abundance and distribution. Length and age frequency distribution data were collected. The sediment samples collected during this survey will also be used to assess the RoxAnn derived sandeel habitat map. To carry out an acoustic survey, backed up by pelagic trawling, to determine the biomass and distribution of pelagic fish in an area off the Firth of Forth which included the Wee Bankie and Marr Bank. Again data to examine age and length frequency distribution of pelagic fish were collected. To assess the abundance and distribution of seabirds in the area using standard transect census techniques and to locate the feeding site of de-marked kittiwakes breeding on the Isle of May. To record the location of all marine mammals observed at sea. To map seabed sediment type using the acoustic system RoxAnn and to collect sediment samples to "groundtruth" the RoxAnn data. To determine spatial variation in the water temperature and salinity profile within the study area.
Chief scientistSimon Greenstreet (Fisheries Research Services Aberdeen Marine Laboratory)
Cruise reportFRV Clupea 1798C cruise report cl17_98.pdf — access key 'C' (0.21 MB) 
Ocean/sea areas 
GeneralNorth Sea
SpecificLargo Bay or Firth of Forth or off St Abbs Head, Firth of Forth, North Sea
Track chartsFRV Clupea 1798C cruise track — trk4378a.html FRV Clupea 1798C cruise track — trk4378b.html FRV Clupea 1798C cruise track — trk4378c.html
Measurements 
Physical oceanography 
CTD stationsQuantity: number of profiles = 20
Description: SeaBird CTD sampler.
Biology and fisheries 
BirdsQuantity: number of surveys = 4
Mammals and reptilesQuantity: number of surveys = 4
Pelagic fishQuantity: number of track lines = 3
Description: Transects
Demersal fishQuantity: number of hauls = 2
Description: Trawls
Acoustic reflection on marine organisms.Quantity: number of track lines = 3
Description: Transects
Geology and geophysics 
GrabQuantity: number of samples = 157
Description: Grabs, nighttime, sandeel abundance length/age frequency
Data held at BODC 
Series/Profiles 
20  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.
5133961998-10-07 17:50 56° 11' 55" N  2° 36' 54" W  View metadata report for BODC series reference number 513396
5134031998-10-07 20:35 56° 15' 8" N  2° 14' 59" W  View metadata report for BODC series reference number 513403
5134151998-10-07 21:25 56° 12' 54" N  2° 5' 52" W  View metadata report for BODC series reference number 513415
5134271998-10-08 02:45 56° 12' 17" N  1° 51' 43" W  View metadata report for BODC series reference number 513427
5134391998-10-08 19:20 56° 15' 56" N  2° 0' 19" W  View metadata report for BODC series reference number 513439
5134401998-10-08 20:20 56° 17' 28" N  1° 51' 35" W  View metadata report for BODC series reference number 513440
5134521998-10-08 23:25 56° 12' 55" N  1° 39' 19" W  View metadata report for BODC series reference number 513452
5134641998-10-09 00:25 56° 7' 48" N  1° 27' 27" W  View metadata report for BODC series reference number 513464
5134761998-10-09 03:00 56° 3' 19" N  1° 11' 51" W  View metadata report for BODC series reference number 513476
5134881998-10-09 19:25 56° 7' 31" N  1° 51' 29" W  View metadata report for BODC series reference number 513488
5135071998-10-09 21:23 56° 17' 23" N  1° 33' 6" W  View metadata report for BODC series reference number 513507
5135191998-10-09 23:15 56° 22' 32" N  1° 34' 50" W  View metadata report for BODC series reference number 513519
5135201998-10-10 00:40 56° 22' 59" N  1° 42' 55" W  View metadata report for BODC series reference number 513520
5135321998-10-10 02:50 56° 22' 12" N  2° 5' 57" W  View metadata report for BODC series reference number 513532
5135441998-10-10 18:50 56° 28' 4" N  2° 18' 58" W  View metadata report for BODC series reference number 513544
5135561998-10-10 20:25 56° 27' 15" N  2° 2' 25" W  View metadata report for BODC series reference number 513556
5135681998-10-10 21:33 56° 28' 14" N  1° 49' 4" W  View metadata report for BODC series reference number 513568
5135811998-10-10 23:00 56° 28' 19" N  1° 35' 25" W  View metadata report for BODC series reference number 513581
5135931998-10-11 19:07 56° 24' 54" N  2° 28' 39" W  View metadata report for BODC series reference number 513593
5136001998-10-11 20:20 56° 22' 29" N  2° 20' 38" W  View metadata report for BODC series reference number 513600