RV Clione CLI7/82

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Clione (74CN)
Cruise identifierCLI7/82
Cruise period1982-05-20 — 1982-06-07
Port of departureBarry, United Kingdom
Port of returnLowestoft, United Kingdom
Objectives1. To carry out a plankton survey using the new MAFF Guildline 76cm high speed sampler, to determine the distribution and abundance of Nephrops larvae.
2. To carry out a trawl survey using the Boris 600 mesh fish/prawn trawl, to determine the distribution of adult Nephrops, and to take samples for fecundity and maturity studies.
3. To survey in selected areas with the DAFS underwater television equipment towed close to the bottom, to estimate the abundance of adult Nephrops.
4. To take sub-surface sea water samples for salinity phosphate, nitrate, nitrite and silicate analysis at each plankton station and to monitor continuously sub-surface sea water for chlorophyll 'a' fluorescence.
5. To take sub-surface sea water samples at selected plankton stations for 137Cs analysis by AEP 1.
6. To collect and deep freeze the stomach contents from selected fish species for predation studies (D Symonds).
7. To lay a moored current meter station at the Nab Tower site for AEP 3.
Chief scientistBrenda M Thompson (Ministry of Agriculture, Fisheries and Food Lowestoft Fisheries Laboratory)
Cruise reportRV Clione CLI7/82 cruise report clione7_82.pdf (0.23 MB) 
Ocean/sea areas 
GeneralIrish Sea and St. George's Channel
SpecificIrish Sea
Track chartsRV Clione CLI7/82 cruise track — trk2831.html RV Clione CLI7/82 cruise track — trk2831a.html
Physical oceanography 
Water bottle stationsQuantity: number of stations = 182
Description: surface only 10 with T only
Current metersDescription: 2 current meters deployed
Chemical oceanography 
PhosphateQuantity: number of stations = 151
NitrateQuantity: number of stations = 151
NitriteQuantity: number of stations = 145
SilicateQuantity: number of stations = 151
RadioactivityQuantity: number of samples = 40
Biology and fisheries 
PhytoplanktonQuantity: number of stations = 159
Description: completed using the MAFF/guildline plankton sampler.
ZooplanktonQuantity: number of stations = 159
Description: completed using the MAFF/guildline plankton sampler.
Demersal fishQuantity: number of hauls = 12
Geology and geophysics 
Bottom photographyQuantity: number of stations = 6
Description: surveyed using the DAFS TV camera sledge