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

Cruise inventory

RV Cirolana CIR5/93

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Cirolana (74CZ)
Cruise identifierCIR5/93
Cruise period1993-05-04 — 1993-06-02
Port of departureLowestoft, United Kingdom
Port of returnLowestoft, United Kingdom
Objectives1. To deploy a moored current meter rig at 53º51'N 05º34'W to monitor continuously near-surface chlorophyll 'a' fluorescence, nitrate, salinity and light. To monitor temperature throughout the water column and near-surface/near-bottom current speed and direction.
2. To measure daily primary production at a number of sites within predetermined physical domains in the north-west Irish Sea.
3. To deploy and evaluate solar fluorometry as a measure of instantaneous primary production in conjunction with DANI.
4. To obtain estimates of zooplankton egg production in relation to both primary production and physical condition at the same sites as 2 above, and to collect copepod samples for ATC enzyme analysis.
5. To sample fish eggs and larvae in relation to physical domains in the north-west Irish Sea.
6. To estimate growth and condition of fish larvae in relation to temperature, food availability and phyical domain.
7. To deploy a sediment trap for DANI at the moored rig site.
8. To take sediment samples and large volume surface seawater samples at 14 sites off the Cumbrian coast as part of the May Whitehaven survey (AEP 1).
Chief scientistJohn H Nichols (Ministry of Agriculture, Fisheries and Food Lowestoft Fisheries Laboratory)
Cruise reportRV Cirolana CIR5/93 cruise report ci5_93.pdf — access key 'C' (0.44 MB) 
Ocean/sea areas 
GeneralIrish Sea and St. George's Channel
SpecificIrish Sea.
Track chartsRV Cirolana CIR5/93 cruise track — trk3840.html
Physical oceanography 
Surface measurements underway (T,S)Quantity: activity duration in days = 29
Description: continuous.
Water bottle stationsQuantity: number of stations = 133
CTD stationsQuantity: number of stations = 92
Subsurface temperature measurementsQuantity: number of deployments = 1
Description: + nitrate analyser
Current metersQuantity: number of deployments = 1
Description: 3 current meters deployed
Chemical oceanography 
PhosphateQuantity: number of stations = 92
NitrateQuantity: number of stations = 92
NitriteQuantity: number of stations = 92
AmmoniaQuantity: number of stations = 92
SilicateQuantity: number of stations = 92
Biology and fisheries 
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: number of stations = 92
PhytoplanktonQuantity: number of stations = 121
ZooplanktonQuantity: number of stations = 121
Eggs and larvaeQuantity: number of stations = 49
Other biological/fisheries measurementQuantity: number of stations = 23
Description: Solar fluorometer,measures sunlight induced chlorophyll
Routine standard measurementsQuantity: activity duration in days = 29
Description: 2 hrly wind speed & direction, air temp and cloud cover
Geology and geophysics 
GrabQuantity: number of samples = 14
Moorings, landers, buoys 
Physical oceanography 
Subsurface temperature measurements53° 52' 0" N  5° 32' 59" W — + nitrate analyser
Current meters53° 52' 0" N  5° 32' 59" W — deploy 3 cms