- Resources
- Inventories
- Cruise inventory
- Report
- 7260
RV Cirolana CIR2B/98
Cruise summary report
Cruise Info. | |
Ship name (ship code) | RV Cirolana (74CZ) |
Cruise identifier | CIR2B/98 |
Cruise period | 1998-03-16 — 1998-03-31 |
Status | Completed |
Port of departure | Falmouth, United Kingdom |
Port of return | Lowestoft, United Kingdom |
Purpose | Fisheries |
Objectives | Aims:
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 scientist | John Casey (Centre for Environment, Fisheries and Aquaculture Science Lowestoft Laboratory) |
Project | Celtic Sea Groundfish Survey |
Cruise report | (0.31 MB) |
Ocean/sea areas | |
General | Celtic Sea |
Specific | Celtic Sea, South-Western Approaches, western English Channel |
Track charts | |
Measurements | |
Physical oceanography | |
Surface measurements underway (T,S) | Quantity: number of profiles = 51 Description: Salinity, temperature, depth |
CTD stations | Quantity: number of profiles = 51 Description: Salinity, temperature, depth |
Biology and fisheries | |
Phytoplankton | Quantity: number of hauls = 8 Description: 1.0m Ring Net drops to 100m depth |
Zooplankton | Quantity: number of hauls = 8 Description: 1.0m Ring Net drops to 100m depth |
Pelagic fish | Quantity: number of stations = 74 Description: Trawling. Catch weight by species, lengths of fish, age material, maturity |
Demersal fish | Quantity: number of stations = 74 Description: Trawling. Catch weight by species, lengths of fish, age material, maturity |
Other biological/fisheries measurement | Quantity: number of stations = 3 Description: METHOT-ISAAC's KIDD trawl: to sample upper midwater scattering layer for fish larvae |