Cruise inventory

RV Cirolana CIR8/90

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Cirolana (74CZ)
Cruise identifierCIR8/90
Cruise period1990-08-15 — 1990-09-17
Port of departureLowestoft, United Kingdom
Port of returnWallsend, United Kingdom
Objectives1. To carry out a groundfish survey of the North Sea using a Standard Granton trawl in order to obtain information on:
(a) Distribution and abundance of all fish species.
(b) Length and age distribution of commercially important species.
(c) Distribution of fish in relation to their environment.
(d) Distribution of macrobenthos.
2. To collect fish samples for Caesium analysis from a grid of stations in the North Sea.
3. To collect material for fish identification courses.
4. To provide fish samples for contaminant analysis for inclusion in the North Sea task Force Quality Status Report (A Franklin).

Additional aims received too late for inclusion in the original cruise programme:
5. To describe the seabed sediments at each trawl station using acoustic methods and Day grab sampling.
6. To run an acoustic survey between trawl stations to monitor mean bottom fish traces.
7. To collect samples of 0-group mackerel for otolith examination.
8. To deep freeze boxes of small fish for fish food.
9. To collect cod otoliths from Rounfish Area 2 and 4 for selection differential studies (C Rowell).
Chief scientistW G Parnell (Ministry of Agriculture, Fisheries and Food Lowestoft Fisheries Laboratory)
Cruise reportRV Cirolana CIR8/90 cruise report ci8_90.pdf — access key 'C' (0.11 MB) 
Ocean/sea areas 
GeneralNorth Sea
Norwegian Sea
SpecificNorth Sea
Track chartsRV Cirolana CIR8/90 cruise track — trk3599.html
Physical oceanography 
CTD stationsQuantity: number of stations = 83
Description: surface S only
Biology and fisheries 
Demersal fishQuantity: number of hauls = 87
Geology and geophysics 
GrabQuantity: number of samples = 78