RV Clione CLI6/82

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Clione (74CN)
Cruise identifierCLI6/82
Cruise period1982-04-26 — 1982-05-14
Port of departureLowestoft, United Kingdom
Port of returnBarry, 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 seawater samples for salinity, phosphate, nitrate, nitrite and silicate analysis at each plankton station and to monitor continuously sub-surface seawater for chlorophyll 'a' fluorescence.
5. To collect and deep freeze the stomach contents from selected fish species for predation studies (D Symonds).
Chief scientistJohn H Nichols (Ministry of Agriculture, Fisheries and Food Lowestoft Fisheries Laboratory)
Cruise reportRV Clione CLI6/82 cruise report clione6_82.pdf (0.23 MB) 
Ocean/sea areas 
GeneralIrish Sea and St. George's Channel
SpecificIrish Sea
Track chartsRV Clione CLI6/82 cruise track — trk2830.html RV Clione CLI6/82 cruise track — trk2830a.html
Physical oceanography 
Water bottle stationsQuantity: number of stations = 117
Description: surface only 10 with T only
CTD stationsQuantity: number of stations = 117
Description: sub surface salinity samples. Surface temperature measured continuously.
Chemical oceanography 
PhosphateQuantity: number of stations = 98
NitrateQuantity: number of stations = 98
NitriteQuantity: number of stations = 98
SilicateQuantity: number of stations = 98
Biology and fisheries 
Eggs and larvaeQuantity: number of stations = 126
Description: 76cm high speed plankton sampler used to determine the distribution and abundance of Nephrops larvae.
Demersal fishQuantity: number of hauls = 13
Geology and geophysics 
Bottom photographyQuantity: number of stations = 9
Description: surveyed using the DAFS sledge fitted with television and photographic cameras.