RV Clione CLI6/82
Cruise summary report
|Ship name (ship code)||RV Clione (74CN)|
|Cruise period||1982-04-26 — 1982-05-14|
|Port of departure||Lowestoft, United Kingdom|
|Port of return||Barry, United Kingdom|
|Objectives||1. 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 scientist||John H Nichols (Ministry of Agriculture, Fisheries and Food Lowestoft Fisheries Laboratory)|
|Cruise report||(0.23 MB)|
|General||Irish Sea and St. George's Channel|
|Water bottle stations||Quantity: number of stations = 117|
Description: surface only 10 with T only
|CTD stations||Quantity: number of stations = 117|
Description: sub surface salinity samples. Surface temperature measured continuously.
|Phosphate||Quantity: number of stations = 98|
|Nitrate||Quantity: number of stations = 98|
|Nitrite||Quantity: number of stations = 98|
|Silicate||Quantity: number of stations = 98|
|Biology and fisheries|
|Eggs and larvae||Quantity: number of stations = 126|
Description: 76cm high speed plankton sampler used to determine the distribution and abundance of Nephrops larvae.
|Demersal fish||Quantity: number of hauls = 13|
|Geology and geophysics|
|Bottom photography||Quantity: number of stations = 9|
Description: surveyed using the DAFS sledge fitted with television and photographic cameras.