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

Cruise inventory

RV Cirolana CIR7/87

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Cirolana (74CZ)
Cruise identifierCIR7/87
Cruise period1987-08-11 — 1987-09-09
Port of departureLowestoft, United Kingdom
Port of returnLowestoft, United Kingdom
Objectives1. To carry out a groundfish survey of the North Sea using a standard Granton trawl in order to obtain information on: (i) Distribution and abundance of all fish species; (ii) Length and age distributions of commercially important species; (iii) Distribution of fish in relation to their environment; (iv) Distribution of macrobenthos and especially of suberites; (v) Gadoid interactions through collection of stomachs of cod, whiting and saithe for the ICES programme on stomach analysis; (vi) Collection of fish and invertebrates for caesium measurements; (vii) Incidence of fish diseases over the North Sea.
2. Collection of live specimens of suberites living on hermit crabs for Mrs P Fry at Luton.
3. Collect specimens of O-group gadoids from midwater using an Isaacs Kidd Trawl for comparison with O-group gadoids taken in the Granton trawl Project. Gaa1 gadoid interactions through feeding.
4. Collect water samples for caesium analysis from the pumped water supply and using Niskin bottles.
5. Sample the environment using electronic sensors in the pumped water supply and using the instrument frame fo vertical sampling.
6. Sample near bottom plankton using a net mounted on the trawl.
7. All biological data will be entered to the fishing surveys data base using the HP 1000 computer.
8. All electronic instruments will be logged on the HP 1000.
9. Collect fish samples for other projects as required.

Additional aims not in the original programme:
10. To determine the distribution and abundance of Nephrops larvae off the English NE coast.
11. To take a Col commissioned film crew to sea to make a video for CSC aimed at recruiting young graduates into the Civil Service.
12. To collect stomachs of R. radiata and R. clavata for H. Sparholt (Denmark).
13. To collect live invertebrates for UEA.
Chief scientistDerek Harding (Ministry of Agriculture, Fisheries and Food Lowestoft Fisheries Laboratory)
Cruise reportRV Cirolana CIR7/87 cruise report ci7_87.pdf — access key 'C' (0.18 MB) 
Ocean/sea areas 
GeneralNorth Sea
SpecificNorth Sea
Track chartsRV Cirolana CIR7/87 cruise track — trk3373.html RV Cirolana CIR7/87 cruise track — trk3373a.html RV Cirolana CIR7/87 cruise track — trk3373b.html RV Cirolana CIR7/87 cruise track — trk3373c.html RV Cirolana CIR7/87 cruise track — trk3373d.html RV Cirolana CIR7/87 cruise track — trk3373e.html
Physical oceanography 
CTD stationsQuantity: number of stations = 73
Trace metalsQuantity: number of stations = 63
Biology and fisheries 
PhytoplanktonQuantity: number of stations = 33
ZooplanktonQuantity: number of stations = 33
Pelagic fishQuantity: number of hauls = 10
Demersal fishQuantity: number of hauls = 77
Description: Granton trawl hauls.