Cruise inventory

RV Cirolana CIR2B/98

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Cirolana (74CZ)
Cruise identifierCIR2B/98
Cruise period1998-03-16 — 1998-03-31
StatusCompleted
Port of departureFalmouth, United Kingdom
Port of returnLowestoft, United Kingdom
PurposeFisheries
ObjectivesAims:
1. To carry out a trawl survey of the Celtic Sea, to obtain information on: a) Distribution, size composition and abundance of all fish species, b) Age-length distribution 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, all scallops that are caught.
5. To continue the development and testing of electronic data capture equipment.
6. to collect mackerel fecundity samples as a part of the 1998 mackerel and horse mackerel egg survey programme.
7. To incubate the eggs of hake, blue whiting and poor cod through to hatching, to provide larvae tissue for genetic studies.
8. to monitor the distribution and abundance and to collect data on Ommastrephid squids (University College Cork, Ireland).
9. To monitor the distribution and abundance 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 collect, deep frozen, specimens of selected species of elasmobranchs; to collect egg cases of dogfish and rays fixed in 70% ethanol; for the University of Swansea.
12. To sample adult hake to obtain an estimate of fecundity.
Chief scientistJohn Casey (Centre for Environment, Fisheries and Aquaculture Science Lowestoft Laboratory)
ProjectCeltic Sea Groundfish Survey
Cruise reportRV Cirolana CIR2B/98 cruise report ci2_98.pdf — access key 'C' (0.31 MB) 
Ocean/sea areas 
GeneralCeltic Sea
SpecificCeltic Sea, South-Western Approaches, western English Channel
Track chartsRV Cirolana CIR2B/98 cruise track — trk4302.html
Measurements 
Physical oceanography 
Surface measurements underway (T,S)Quantity: number of profiles = 51
Description: Salinity, temperature, depth
CTD stationsQuantity: number of profiles = 51
Description: Salinity, temperature, depth
Biology and fisheries 
PhytoplanktonQuantity: number of hauls = 8
Description: 1.0m Ring Net drops to 100m depth
ZooplanktonQuantity: number of hauls = 8
Description: 1.0m Ring Net drops to 100m depth
Pelagic fishQuantity: number of stations = 74
Description: Trawling. Catch weight by species, lengths of fish, age material, maturity
Demersal fishQuantity: number of stations = 74
Description: Trawling. Catch weight by species, lengths of fish, age material, maturity
Other biological/fisheries measurementQuantity: number of stations = 3
Description: METHOT-ISAAC's KIDD trawl: to sample upper midwater scattering layer for fish larvae