Planned maintenance — 18th January 2018 12:00 to 22nd January 2018 09:00 [more]

Cruise inventory

RV Cirolana CIR8/86

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Cirolana (74CZ)
Cruise identifierCIR8/86
Cruise period1986-10-10 — 1986-10-27
Port of departureImmingham, United Kingdom
Port of returnLowestoft, United Kingdom
Objectives1. To participate in the ICES coordinated herring larvae survey of region IVB during the two standard sampling periods in October, using the MAFF 53cm high speed sampler.
2. To examine aspects of the planktonic ecosystem of which herring larvae are a part, including:
(i) the physical structure of the environment;
(ii) the vertical distribution of herring larvae, their food and predators;
(iii) herring larvae diet and feeding status;
(iv) predation on herring larvae.
NOTE: gear trials in relation to aim 2 will be an integral part of the programme.
3. To take water samples using the ships pumps and analyse on board for dissolved sulphur gases using gas chromatography (UEA).
4. To examine the spatial and vertical distribution of choanoflagellates in the coastal and open waters of the North Sea (University of Birmingham).
Chief scientistJohn H Nichols (Ministry of Agriculture, Fisheries and Food Lowestoft Fisheries Laboratory)
Cruise reportRV Cirolana CIR8/86 cruise report ci8_86.pdf — access key 'C' (0.26 MB) 
Ocean/sea areas 
GeneralNorth Sea
Irish Sea and St. George's Channel
SpecificW. Central North Sea
Track chartsRV Cirolana CIR8/86 cruise track — trk3242.html RV Cirolana CIR8/86 cruise track — trk3242a.html
Physical oceanography 
CTD stationsQuantity: number of stations = 211
Subsurface temperature and salinity measurements
Biology and fisheries 
Phytoplankton pigs (eg chlorophyll, fluorescence)Description: continuous chlorophyll monitoring
PhytoplanktonQuantity: number of stations = 211
ZooplanktonQuantity: number of stations = 211
Eggs and larvaeQuantity: number of stations = 35