RV Clione CLI6/85

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Clione (74CN)
Cruise identifierCLI6/85
Cruise period1985-05-07 — 1985-05-29
Port of departureLowestoft, United Kingdom
Port of returnLowestoft, United Kingdom
Objectives1. To carry out a sector scanner survey of an area of shingle bank 5 1/2 nautical miles east of the Royal Sovereign.
2. To carry out a plankton survey using the 76cm high speed tow net fitted with the MAFF Guildline Monitoring system, to determine the distribution and abundance of Nephrops norvegicus larvae in the North Sea.
3. To study the vertical distribution of Nephrops larvae using a Longhurst Hardy Continuous Plankton recorder.
4. To continuously monitor the temperature and salinity of the surface sea water.
5. To collect water samples for salinity, nitrate, phosphate and silicate analysis.
6. To determine whether berried female Nephrops are found in the areas of high abundance of larvae.
Chief scientistBrenda M Thompson (Ministry of Agriculture, Fisheries and Food Lowestoft Fisheries Laboratory)
Cruise reportRV Clione CLI6/85 cruise report clione6_85.pdf (0.23 MB) 
Ocean/sea areas 
GeneralIrish Sea and St. George's Channel
SpecificIrish Sea
Track chartsRV Clione CLI6/85 cruise track — trk3130.html RV Clione CLI6/85 cruise track — trk3130a.html
Physical oceanography 
Surface measurements underway (T,S)
Water bottle stationsQuantity: number of stations = 167
Description: 100 S surface 100 bottom
CTD stationsQuantity: number of stations = 167
Chemical oceanography 
PhosphateQuantity: number of stations = 93
NitrateQuantity: number of stations = 93
NitriteQuantity: number of stations = 93
SilicateQuantity: number of stations = 93
Biology and fisheries 
PhytoplanktonQuantity: number of samples = 176
Description: samples using the high speed townet.
ZooplanktonQuantity: number of samples = 176
Description: samples using the high speed townet.
Demersal fishQuantity: number of hauls = 11