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

Cruise inventory

RV Cirolana CIR5/89

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Cirolana (74CZ)
Cruise identifierCIR5/89
Cruise period1989-05-19 — 1989-06-12
Port of departureLowestoft, United Kingdom
Port of returnLowestoft, United Kingdom
Objectives1. To participate in the international mackerel egg survey of the western stock, assessing the production of mackerel eggs in the area between latitudes 48ºN and 52ºN.
2. To take samples of mackerel by 'feathering' in daylight over a representative area of the plankton survey grid for fecundity studies.
3. To examine diurnal periodicity in mackerel spawning from five staging of eggs in relation to a linked shipboard incubation experiment, and sampling with adult mackerel.
4. To sample on a grid of 62 stations in the Bristol Channel and its western approaches for sole eggs and larvae.
Chief scientistJohn H Nichols (Ministry of Agriculture, Fisheries and Food Lowestoft Fisheries Laboratory)
Cruise reportRV Cirolana CIR5/89 cruise report ci5_89.pdf — access key 'C' (0.15 MB) 
Ocean/sea areas 
GeneralIrish Sea and St. George's Channel
Bristol Channel
SpecificBristol Chan./Celtic Sea/W. Approaches
Track chartsRV Cirolana CIR5/89 cruise track — trk3504a.html RV Cirolana CIR5/89 cruise track — trk3504b.html RV Cirolana CIR5/89 cruise track — trk3504c.html
Physical oceanography 
Surface measurements underway (T,S)
Water bottle stationsQuantity: number of stations = 194
Description: surface S only
CTD stationsQuantity: number of stations = 193
Biology and fisheries 
PhytoplanktonQuantity: number of stations = 193
ZooplanktonQuantity: number of stations = 193