Cruise inventory

RV Cirolana CIR1/94

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Cirolana (74CZ)
Cruise identifierCIR1/94
Cruise period1994-01-06 — 1994-01-19
Port of departureLowestoft, United Kingdom
Port of returnLowestoft, United Kingdom
Objectives1. To study the transport, feeding and condition of herring larvae in the eastern English Channel and southern North Sea.
2. To quantify the availability of food organisms for herring larvae.
3. To make continuous measurements of sub-surface chlorophyll 'a' fluourescence using the pumped seawater supply. To take discrete surface and sub-surface samples and do shipboard analysis of chlorophyll.
4. To trial the Focus Instruments Optical Plankton counter mounted on the dual LHPR and compare the results from the two systems on horizontal tows within the study area.
5. To calibrate the external flowmeter in its new position against an external flowmeter in the old position on both the 76cm and 53cm HSTNs.
6. To make relevant observations and run the UCNW primary production model on a daily basis as a trial.
Chief scientistJohn H Nichols (Ministry of Agriculture, Fisheries and Food Lowestoft Fisheries Laboratory)
Cruise reportRV Cirolana CIR1/94 cruise report ci1_94.pdf — access key 'C' (0.15 MB) 
Ocean/sea areas 
GeneralEnglish Channel
SpecificEastern English Channel/Southern North Sea
Track chartsRV Cirolana CIR1/94 cruise track — trk4010.html
Physical oceanography 
Surface measurements underway (T,S)Quantity: activity duration in days = 13
Description: +B02 and solar irradiance
Water bottle stationsQuantity: number of stations = 88
Description: S only 75 surface only
CTD stationsQuantity: number of stations = 8
Biology and fisheries 
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: activity duration in days = 13
Description: +B02 and solar irradiance
PhytoplanktonQuantity: number of stations = 88
Description: for quantification of available food organisms for herring larvae
ZooplanktonQuantity: number of stations = 88
Description: Optical Plankton Counter on LHPR - herring larvae
Demersal fishQuantity: number of hauls = 20