RV Cirolana CIR3B/97

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Cirolana (74CZ)
Cruise identifierCIR3B/97
Cruise period1997-03-21 — 1997-04-04
Port of departureFalmouth, United Kingdom
Port of returnLowestoft, United Kingdom
Objectives1. To carry out a trawl survey of the western Celtic Sea to obtain information on:
(a) Distribution and abundance at length of all fish species.
(b) Age length distributions of selected species.
2. To sample juvenile fish for recruitment studies.
3. To collect material for fish identification courses.
4. To collect, and preserve frozen, any scallops that are caught.
5. To continue the collection of stomach content data begun on earlier cruises.
6. To continue the development of electronic data capture equipment.
7. To collect samples of herring for the study of the incidence of Ichthyophonus disease.
8. To monitor distribution and abundance and collect biological data on Ommastrephid squids (University College Cork, Ireland).
9. To monitor the distribution and abundace of whelks and whelk shells with hermit crabs. To freeze all whelks and whelk shells with hermit crabs for analysis at CEFAS, Conwy laboratory.
10. To sample the upper mid-water scattering layer, using the MIK-net, to investigate distribution and abundance of small prey items.
11. To trial the new Guidline CTDs on a plankton samplers and to rest the prototype acoustic sensor flow measuring device.
12. To collect and freeze specimens of selected species of elasmobranchs: to collect egg cases of dogfish and rays fixed in 70% ethanol for the University of Swansea.
Chief scientistJohn H Nichols (Ministry of Agriculture, Fisheries and Food Lowestoft Fisheries Laboratory)
Cruise reportRV Cirolana CIR3B/97 cruise report ci3_97.pdf (0.29 MB) 
Ocean/sea areas 
GeneralNorth Atlantic Ocean
SpecificWestern Approaches; Celtic Sea; Northern Biscay
Track chartsRV Cirolana CIR3B/97 cruise track — ci3_97track.pdf (0.02 MB) 
Physical oceanography 
Water bottle stationsQuantity: number of stations = 30
Description: Bottom salinity samples
CTD stationsQuantity: number of profiles = 30
Description: CTD profiles
Biology and fisheries 
NektonQuantity: number of hauls = 4
Description: Upper mid-water scattering layer
Demersal fishQuantity: number of hauls = 34
Description: Groundfish survey station