FRV Scotia 1199S

Cruise summary report

Cruise Info. 
Ship name (ship code)FRV Scotia (748S)
Cruise identifier1199S
Cruise period1999-07-01 — 1999-07-24
Port of departureAberdeen, United Kingdom
Port of returnAberdeen, United Kingdom
Objectives1. To participate in an ICES-coordinated acoustic and mid-water trawling survey in the north western North Sea and North of Scotland between 58º to 62ºN 4º 30'W to 2ºE excluding Norwegian and Faroes waters.
2. To obtain samples of herring for biological analysis, including age, length, weight, sex, maturity and ichthyophonus infection.
3. To obtain thermosalinograph recordings of surface temperature and salinity throughout the survey area. CTD (and XBT) profiles of temperature and salinity at depth for analysis with herring distributions.
4. To obtain measurements of herring density using autosub.
5. To carry out an acoustic intercalibration with RV Tridens.
Chief scientistEdmund John Simmonds (Fisheries Research Services Aberdeen Marine Laboratory)
Coordinating bodyICES
Cruise reportFRV Scotia 1199S cruise report sc11_99.pdf (0.21 MB) 
Ocean/sea areas 
GeneralNorth Sea
North East Atlantic Ocean (limit 40W)
SpecificNorth western North Sea, Orkney, Shetland and north of Scotland
Track chartsFRV Scotia 1199S cruise track — sc11_99track.pdf (0.05 MB) 
Physical oceanography 
Surface measurements underway (T,S)Quantity: activity duration in days = 23
Description: continuous surface temperature and sailinity
BathythermographQuantity: number of stations = 35
CTD stationsQuantity: number of stations = 50
Biology and fisheries 
Pelagic fishQuantity: number of hauls = 39
Description: Trawl hauls, Herring length, frequency, weight sex, maturity, otolith and microscopic evidence of ichthyophonus infections.
Geology and geophysics 
Single-beam echosoundingQuantity: data volume in gigabytes = .8
Description: Megabytes, Single beam echosounder data at 35 and 120 kHz from a simrad EK500 echosounder for comparision with similar data collected on board Autosub.