RV Cirolana CIR10/83

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Cirolana (74CZ)
Cruise identifierCIR10/83
Cruise period1983-10-28 — 1983-11-13
Port of departureGrimsby, United Kingdom
Port of returnLowestoft, United Kingdom
Objectives1. Comparative fishing with RV G A REAY to compare catches in the short-winged GOV trawls.
2. Comparative fishing in a restricted location with standard GOV trawl, short winged GOV trawl, Standard Granton trawl and Granton trawl rigged with arctic bobbins.
3. Collections and analyses of stomach contents of gadoids.
4. Collections and analyses of benthos taken in a) the various trawls and b) the Agassiz trawl for comparison with stomach contents of fish.
5. Collections of near sea bed plankton using coarse and fine plankton nets attached to the headline of the trawls used in the fishing exercises.
6. Environmental sampling using CTD and Oriel fluorometer for profiles and shallow water CTD HIAC particle counter and Turner flurometer in pumped water supply.
7. All data willl be data logged (including ships instruments) or punched in to the computer following each trawl haul, or series of trawl hauls.
Chief scientistDerek Harding (Ministry of Agriculture, Fisheries and Food Lowestoft Fisheries Laboratory)
Cruise reportRV Cirolana CIR10/83 cruise report ci10_83.pdf (0.19 MB) 
Ocean/sea areas 
GeneralNorth Sea
Norwegian Sea
North East Atlantic Ocean (limit 40W)
SpecificN. North Sea
Track chartsRV Cirolana CIR10/83 cruise track — trk2941.html
Physical oceanography 
Surface measurements underway (T,S)
CTD stationsQuantity: number of stations = 24
Biology and fisheries 
Phytoplankton pigs (eg chlorophyll, fluorescence)
Pelagic fishQuantity: number of hauls = 39
Description: identification,physiology
Demersal fishQuantity: number of hauls = 21