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

Cruise inventory

RV Cirolana CIR1/89

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Cirolana (74CZ)
Cruise identifierCIR1/89
Cruise period1989-01-06 — 1989-01-20
Port of departureLowestoft, United Kingdom
Port of returnLowestoft, United Kingdom
Objectives1. To participate in the ICES coordinated herring larvae survey in regions IVC and VIID.
2. To monitor continuously sub-surface temperature, salinity and chlorophyll 'a', with sampler profiles at each larvae survey station.
3. To compare herring larvae habitats in different areas including 'autumn larvae' in the central North Sea, as part of the larvae ecology programme. Sampling will include:
(a) herring larvae for condition analysis and growth rates (otoliths)
(b) abundance of potential food organisms on the standard survey
(c) midwater trawling for potential predators.
4. To do a M1K trawl survey in the central and eastern North Sea to sample autumn spawned larvae.
5. To conduct further trials and some sampling with the MAFF/LHPR system.
Chief scientistJohn H Nichols (Ministry of Agriculture, Fisheries and Food Lowestoft Fisheries Laboratory)
Cruise reportRV Cirolana CIR1/89 cruise report ci1_89.pdf — access key 'C' (0.15 MB) 
Ocean/sea areas 
GeneralEnglish Channel
North Sea
SpecificCentral and Southern North Sea, Eastern English Channel
Track chartsRV Cirolana CIR1/89 cruise track — trk3499a.html RV Cirolana CIR1/89 cruise track — trk3499b.html
Physical oceanography 
Surface measurements underway (T,S)Quantity: number of measurements = 993
Description: 974 with T only
CTD stationsQuantity: number of stations = 118
Biology and fisheries 
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: number of stations = 118
PhytoplanktonQuantity: number of stations = 118
ZooplanktonQuantity: number of stations = 118
Pelagic fishQuantity: number of hauls = 38