RV Cirolana CIR5B/96
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | RV Cirolana (74CZ) |
| Cruise identifier | CIR5B/96 |
| Cruise period | 1996-05-19 — 1996-06-03 |
| Status | Completed |
| Port of departure | Barrow-in-Furness, United Kingdom |
| Port of return | Lowestoft, United Kingdom |
| Purpose | Research |
| Objectives | 1. To recover, service and redeploy minipods in the north-east Irish Sea.
2. To determine the effect of trawling on the remobilisation of surface sediments, via radiochemical and geochemical sampling of sediment and water. 3. To carry out ultrafiltration experiments to asses sediment/water interface and radiocolloidal behaviour from disturbance of surface sediments by fishing trawls. 4. To characteris the trawling site through Sidescan sonar and towed video survey. 5. To collect a series of Kaston cores for the purpose of quantifying the budget of artificially occurring radionuclides in the sub-tidal sediments of the Irish Sea. 6. To recover tetrapod, minipods, quadapods and current meters from the north-east Irish Sea. 7. To deploy and recover 5 Minipods (with syringes) and Decca Argos drifters around Area 107/Race Bank in the Outer Wash to observe, measure and sample sediment plumes from dredgers. 8. To undertake resuspension studies in the vicinity of the Race Bank dredge site. |
| Chief scientist | Andrew J Poole (Ministry of Agriculture, Fisheries and Food Lowestoft Fisheries Laboratory) |
| Cruise report |  (0.23 MB) |
| Ocean/sea areas | |
| General | North Sea Irish Sea and St. George's Channel |
| Specific | North-east Irish Sea and Race Bank, North Sea |
| Track charts |  |
| Measurements | |
| Physical oceanography | |
| Surface measurements underway (T,S) | Quantity: number of stations = 21 Description: +H22,H24,H25,H26,H76 |
| CTD stations | Quantity: number of samples = 76 |
| Current meters | Quantity: number of stations = 6 Description: 10 current meters recovered |
| Chemical oceanography | |
| Phosphate | Quantity: number of samples = 76 |
| Phosphate | Quantity: number of stations = 21 Description: +H22,H24,H25,H26,H76 |
| Nitrate | Quantity: number of samples = 76 |
| Nitrate | Quantity: number of stations = 21 Description: +H22,H24,H25,H26,H76 |
| Nitrite | Quantity: number of stations = 21 Description: +H22,H24,H25,H26,H76 |
| Nitrite | Quantity: number of samples = 76 |
| Ammonia | Quantity: number of stations = 21 Description: +H22,H24,H25,H26,H76 |
| Ammonia | Quantity: number of samples = 76 |
| Silicate | Quantity: number of samples = 76 |
| Silicate | Quantity: number of stations = 21 Description: +H22,H24,H25,H26,H76 |
| Radioactivity | Quantity: number of samples = 76 Description: various radionuclide analyses |
| Contamination | |
| Suspended matter | Quantity: number of samples = 76 |
| Biology and fisheries | |
| Phytoplankton pigs (eg chlorophyll, fluorescence) | Quantity: number of stations = 21 Description: surface chlorophyll |
| Geology and geophysics | |
| Core - soft bottom | |
| Moorings, landers, buoys | |
| Physical oceanography | |
| Current meters | 54° 23' 59" N 3° 45' 0" W — 2 cms recovered |
| Current meters | 54° 22' 0" N 3° 52' 0" W — 2 cms recovered |
| Current meters | 54° 19' 59" N 3° 32' 59" W — 1 cm recovered |
| Current meters | 54° 16' 0" N 3° 46' 59" W — 2 cms recovered |
| Current meters | 54° 25' 59" N 3° 38' 59" W — 1 cm recovered |
| Current meters | 54° 17' 59" N 3° 40' 0" W — 2 cms recovered |
