RV Cirolana CIR4/76
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | RV Cirolana (74CZ) |
| Cruise identifier | CIR4/76 |
| Cruise period | 1976-03-22 — 1976-04-11 |
| Status | Completed |
| Port of departure | Grimsby, United Kingdom |
| Port of return | Grimsby, United Kingdom |
| Purpose | Research |
| Objectives | 1 To make an acoustic survey of the distribution and abundance of the spawning
stock of blue whiting. 2 To test the deep-water transducer and to make short range observations of blue whiting. 3 To sample plankton and neuston throughout the survey using continuous and Longhurst-Hardy plankton recorders (LHPR). 4 To take biological samples of blue whiting, mackerel and some deep water demersal species. |
| Chief scientist | Michael Gregg Pawson (Ministry of Agriculture, Fisheries and Food Lowestoft Fisheries Laboratory) |
| Cruise report |  (0.27 MB) |
| Ocean/sea areas | |
| General | Irish Sea and St. George's Channel North East Atlantic Ocean (limit 40W) |
| Track charts |  |
| Measurements | |
| Physical oceanography | |
| Surface measurements underway (T,S) | Quantity: track kilometres = 5185 Description: T only |
| Bathythermograph | Quantity: number of profiles = 7 |
| Water bottle stations | Quantity: number of stations = 12 Description: S surface only |
| Subsurface temperature and salinity measurements | |
| Biology and fisheries | |
| Phytoplankton | Quantity: track kilometres = 2592.8 |
| Zooplankton | Quantity: track kilometres = 2592.8 |
| Eggs and larvae | Quantity: track kilometres = 2592.8 |
| Pelagic fish | Quantity: number of hauls = 4 |
| Demersal fish | Quantity: number of hauls = 2 Description: survey:identification,distribution,biomass determination |
| Acoustic reflection on marine organisms. | Quantity: track kilometres = 3889.2 |
