RV Cirolana CIR3B/75
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | RV Cirolana (74CZ) |
| Cruise identifier | CIR3B/75 |
| Cruise period | 1975-03-13 — 1975-03-26 |
| Status | Completed |
| Port of departure | Great Yarmouth, United Kingdom |
| Port of return | Grimsby, United Kingdom |
| Purpose | Research |
| Objectives | 1. To carry out an acoustic survey of Blue Whiting between Porcupine
Bank and St Kilda/Rockall using the ''Humber' 30 KHz sounder and Simrad integrator. 2. To analyse single fish target strengths using cycle-counter/pulse height analyser and Simrad integrator/storage oscilloscope methods. 3. To obtain samples of Blue Whiting by fishing for maturation and length/age studies. 4. To rendez-vous with RV EXPLORER to carry out intership calibration runs 5. To co-ordinate by radio, fishing activities of TRS Vessel ARCTIC PRIVATEER. Contact will be made twice daily at 0930 and 2130 hours. 6. To make tows with the Continuous Plankton Recorder when practicable. 7. To carry out surface temperature and salinity observations over the survey area. |
| Chief scientist | P O Johnson (Ministry of Agriculture, Fisheries and Food Lowestoft Fisheries Laboratory) |
| Project | Blue Whiting Survey with Marine Laboratory Aberdeen |
| Cruise report |  (0.34 MB) |
| Ocean/sea areas | |
| General | North East Atlantic Ocean (limit 40W) |
| Track charts |  |
| Measurements | |
| Physical oceanography | |
| Surface measurements underway (T,S) | Quantity: track kilometres = 2778 Description: T only |
| Bathythermograph | Quantity: number of profiles = 24 |
| Water bottle stations | Quantity: number of stations = 24 Description: surface only |
| Biology and fisheries | |
| Phytoplankton | Quantity: track kilometres = 926 |
| Zooplankton | Quantity: track kilometres = 926 |
| Eggs and larvae | Quantity: track kilometres = 926 |
| Pelagic fish | Quantity: number of hauls = 1 Description: 1500nm distribution and biomass determination |
| Acoustic reflection on marine organisms. | Quantity: track kilometres = 2778 |
