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FRV Scotia 0800S_2

Cruise summary report

Cruise Info. 
Ship name (ship code)FRV Scotia (748S)
Cruise identifier0800S_2
Cruise period2000-06-01 — 2000-06-08
StatusCompleted
Port of departureAberdeen, United Kingdom
Port of returnAberdeen, United Kingdom
PurposeTrials
Objectives1. To carry out deployment trials with the multicorer and large box corer.
2. To carry out deployment and recovery training with the ARIES sampler to reduce future damage to instrumentation.
3. To undertake training with the monkfish trawl at a variety of tension settings.
4. To carry out efficiency trials of the new sandeel dredge.
5. To install software on the Simrad SF950 sonar and to run acceptance tests on this unit.
6. To deploy the Reson Seabat 6012 multibeam sonar on the drop keel.
7. To undertake a variety of trials and tests of the full complement of existing acoustic equipment on FRV Scotia.
8. To check for interference between the RDI ADCP, the Furono Doppler current profiler and the individual items of Simrad acoustic equipment.
9. To calibrate all three EK500 transducers (38, 120 and 200 kHz) and the 18 kHz EA500 transducer.
10. To conduct a small-scale survey of sandeels on the Fair Isle Bank.
11. To collect multifrequency data (at four frequencies) and multibeam sonar data on sandeels to investigate the possibility of automatic species identification.
12. To investigate the emergent behaviour of sandeels.
13. To use the pelagic trawl and 1.8 m Methot net to identify acoustic targets.
Chief scientistPaul G Fernandes (Fisheries Research Services Aberdeen Marine Laboratory)
Cruise reportFRV Scotia 0800S_2 cruise report sc08_00part2.pdf (0.12 MB) 
Ocean/sea areas 
GeneralInner Seas off the West Coast of Scotland
North East Atlantic Ocean (limit 40W)
SpecificOrkney Islands, Fair Isle Bank, NW North Sea
Measurements 
Physical oceanography 
Surface measurements underway (T,S)Quantity: activity duration in days = 5
Description: Sea surface temperature and salinity for hydrographic mapping
Water bottle stationsQuantity: number of stations = 30
Description: Water bottle for CTD calibration.
CTD stationsQuantity: number of stations = 30
Description: CTD casts for hydrographic mapping.
Biology and fisheries 
ZooplanktonQuantity: number of hauls = 2
Description: Methot net hauls for juvenile fish and small sandeels.
Pelagic fishQuantity: number of hauls = 8
Description: Pelagic fish trawl hauls for fish samples and species identification.
Acoustic reflection on marine organisms.Quantity: track kilometres = 926
Description: Vertical echosounder data at 18,38,120 and 200 kHz. Rate=1 per second. Units Sv(dB), For echo integration to calculate fish biomass and for species identification.
Geology and geophysics 
Single-beam echosoundingQuantity: track kilometres = 926
Description: Vertical echosounder data at 18,38,120 and 200 kHz. Rate=1 per second. Units Sv(dB), For echo integration to calculate fish biomass and for species identification.