Cruise inventory

RV Clione CLI6/86

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Clione (74CN)
Cruise identifierCLI6/86
Cruise period1986-05-14 — 1986-05-29
Port of departureLowestoft, United Kingdom
Port of returnLowestoft, United Kingdom
Objectives1. To measure the incidence of unfertilised eggs in the Thames Estuary sole spawning.
2. To measure the specific gravity of wild sole eggs in different development stages.
3. To determine the time of sole spawning.
4. To measure the non-predatory mortality of sole eggs.
5. To identify predators of sole eggs.
6. To catch spawning female sole for the measurement of egg composition.
7. To catch live polychaetes to provide the basis of a living food supply for sole rearing.
8. To obtain mackerel samples for stomach analysis (Mrs Dawson).
9. To obtain 20 live lesser spotted dogfish, 20 flounders and 12 sole more than 20 cm for UEA (Mr Scholes)
10. To obtain 40 to 50 live dabs for experimental work on fecundity.
11. To exchange stomach samples with RIVO, Ijmuiden (Mr Harding and Drs Daan).
Chief scientistR G Houghton (Ministry of Agriculture, Fisheries and Food Lowestoft Fisheries Laboratory)
Cruise reportRV Clione CLI6/86 cruise report clione6_86.pdf — access key 'C' (0.12 MB) 
Ocean/sea areas 
GeneralNorth Sea
SpecificS. North Sea
Track chartsRV Clione CLI6/86 cruise track — trk3251.html
Physical oceanography 
Surface measurements underway (T,S)
Biology and fisheries 
PhytoplanktonQuantity: number of samples = 20
ZooplanktonQuantity: number of samples = 20
Demersal fishDescription: hauls made using the Portuguese High Headline Trawl for potential egg predators.
Geology and geophysics 
GrabQuantity: number of samples = 16