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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 |