Cruise inventory

RV Clione CLI4/73

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Clione (74CN)
Cruise identifierCLI4/73
Cruise period1973-02-19 — 1973-03-01
StatusCompleted
Port of departureLowestoft, United Kingdom
Port of returnLowestoft, United Kingdom
PurposeResearch
Objectives1. To observe the movement of pelagic fish shoals in relation to the tide by:-
(a) anchoring the ship and using the sector scanning sonar to
record shoal movements whilst using DRCMs to measure the tidal currents;
(b) launching a parachute drogue in the vicinity of a suitable shoal, tracking the drogue by radar and the shoal by conventional sonar.
2. To investigate the structure of pelagic fish shoals using the ARL scanner in combination with a towed underwater camera.
3. To use a towed underwater camera and then a midwater trawl with a camera fitted to the headline to assess the use of the former as an aid to trace identification.
4. To carry out an echo/fishing/plankton survey of the area to the south and west of Plymouth and Mounts Bay.
Chief scientistPeter R Winslade (Ministry of Agriculture, Fisheries and Food Lowestoft Fisheries Laboratory)
Cruise reportRV Clione CLI4/73 cruise report clione4_73.pdf — access key 'C' (0.21 MB) 
Ocean/sea areas 
GeneralEnglish Channel
Measurements 
Physical oceanography 
Surface measurements underway (T,S)Quantity: number of stations = 18
Description: S only
Water bottle stationsQuantity: number of stations = 18
Description: 6 bottom
Current metersQuantity: number of deployments = 2
Description: direct reading
Surface drifters/drifting buoysDescription: drogues
Biology and fisheries 
PhytoplanktonQuantity: number of hauls = 17
Description: 20''TTN,14''nose cone and Compi net
ZooplanktonQuantity: number of hauls = 17
Description: 20''TTN,14''nose cone and Compi net
Eggs and larvaeQuantity: number of hauls = 17
Pelagic fishQuantity: number of hauls = 18
Description: 20''TTN,14''nose cone and Compi net
Demersal fishQuantity: number of hauls = 18
Description: 20''TTN,14''nose cone and Compi net
Meteorology 
Occasional standard measurements
Other meteorological measurementsDescription: sea and swell
Geology and geophysics 
Bottom photographyQuantity: number of deployments = 10
Description: underwater camera(towed)
Long/short range side scan sonarQuantity: number of deployments = 2
Description: sector scanner