Cruise inventory

RV Corella 10/71

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Corella (74CX)
Cruise identifier10/71
Cruise period1971-06-01 — 1971-06-10
Port of departureLowestoft, United Kingdom
Port of returnLowestoft, United Kingdom
Objectives1. To carry out a survey of the distributions of fish eggs and larvae
and other planktonic organisms in the Flamborough and Southern Bight
spawning grounds in the southern North Sea.
2. To collect a series of samples with the changing net sampler to
study vertical distribution of fish larvae.
3. To monitor transparency, chlorophyll A and temperature continuously
in the sea surface water.
4. To collect salinity samples on each station occupied.
5. To record fish traces using an MS29 echo sounder.
6. To collect samples of water for trace element analysis by atomic
absorption spectrophotometry.
7. To collect cores of bottom sediments for heavy metal analysis.
8. To measure temperature/depth profiles at selected stations.
9. To release sea bed drifters at nine stations in the Flamborough
10. To collect samples of suspended material, including algae from
selected stations to calibrate the Turner fluorometer.
11. To collect for examination by Dr J D Dodge for dinoflagellates.
Chief scientistDerek Harding (Ministry of Agriculture, Fisheries and Food Lowestoft Fisheries Laboratory)
Cruise reportRV Corella 10/71 cruise report corella10_71.pdf — access key 'C' (0.19 MB) 
Ocean/sea areas 
GeneralNorth Sea
Specific51.30-55N 01W-05E
Physical oceanography 
Water bottle stationsDescription: 122 surface 3 S bottom
Optics (eg underwater light levels)Quantity: number of stations
Description: optical properties cont.
Surface drifters/drifting buoysQuantity: number of deployments = 443
Description: bottom
Chemical oceanography 
Trace elementsQuantity: number of stations = 4
Description: water samp. for analysis
Biology and fisheries 
Phytoplankton pigs (eg chlorophyll, fluorescence)Description: chlorophyll a cont.
PhytoplanktonQuantity: number of stations = 122
PhytoplanktonDescription: analysis for dinoflagellates
ZooplanktonQuantity: number of stations = 122
Eggs and larvaeQuantity: number of stations = 122
Pelagic bacteria/micro-organisms
Acoustic reflection on marine organisms.
Occasional standard measurements
Other meteorological measurementsDescription: sea and swell