RV Cirolana CIR1/03

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Cirolana (74CZ)
Cruise identifierCIR1/03
Cruise period2003-02-12 — 2003-02-25
Port of departureLowestoft, United Kingdom
Port of returnLowestoft, United Kingdom
Objectives1. To participate in the ICES co-ordinated International Bottom Trawl Survey for quarter 1 and in support of the EC Data Collection regulations. To fish over an allocated area of the North Sea using a standard GOV trawl in order to obtain information on:
1) Distribution, size composition and abundance of all fish species caught;
b) Age - length distribution of selected species;
c) Distribution of fish in relation to their environment;
d) Distribution of macrobenthos and anthropogenic debris;
e) Surface and bottom temperature and salinity data using miniCTD;
f) Length, weight and maturity information using individual fish measurements.
2. To collect data and samples to estimate cod reproductive potential as part of the reproduction and stock evaluation for recovery (RASER) project. (P. Witthames, CEFAS, Lowestoft).
3. To collect Scanmar readings from BACA trawl to provide SFIA, Hull, with proofing data for flume tank model.
4. Trial re-rigged GOV trawl to address problems of slack net in lower wings dragging along seabed and assess suitability for fishing GOV on hard ground.
Chief scientistBrian F M Harley (Centre for Environment, Fisheries and Aquaculture Science Lowestoft Laboratory)
Coordinating bodyICES
Cruise programmeRV Cirolana CIR1/03 cruise programme ci01_03.pdf  (0.05 MB) 
Cruise reportRV Cirolana CIR1/03 cruise report ciro1_03.pdf (0.02 MB) 
Ocean/sea areas 
GeneralNorth Sea
SpecificICES rectangles: 31F1, 32F1, 33F1, 34F1, 33F2, 34F2, 35F2, 36F2, 36F1, 37F1, 38F1, 35F1, 35F0, 36F0, 37F0, 37E9, 38F0, 38E9, 39F0, 39E9, 40E9, 39E8
Track chartsRV Cirolana CIR1/03 cruise track — ciro1_03trk.pdf (0.01 MB) 
Physical oceanography 
CTD stationsQuantity: number of stations = 23
Description: 30 minute CTD profiles whilst fishing
Biology and fisheries 
Demersal fishQuantity: number of stations = 23
Description: 30 minute hauls with GoV
Gear researchQuantity: number of stations = 11
Description: 30 minute hauls with GOV + BACA trawls