1. To study the interaction between light and nutrient limitation of primary production.
2. To carry out experiments on the time-based biochemical and photosynthetic response of the phytoplankton in the euphotic zone of the stratified region (Station E5) to pulsed increments in nutrient concentrations.
3. To determine the spatial and vertical distribution of alkaline phosphatase activity in relation to chlorophyll concentrations and phosphate availability.
4. To measure the photosynthetic activity of natural populations of Gyrodinium aureolum at different light levels using in vitro changes in dissolved oxygen and CO2 uptake rates.
5. To examine how the availability of phosphate in sediments depends upon the physical and chemical nature of the particulates.
6. To measure the concentration of amino acids present in the English Channel in the summertime.
Chief scientist
Anthony G Davies (Marine Biological Association of the UK)
Cruise report
(0.26 MB)
Ocean/sea areas
General
English Channel
Specific
English Channel
Track charts
Measurements
Physical oceanography
Surface measurements underway (T,S)
Water bottle stations
Quantity: number of stations = 10 Description: T only
CTD stations
Quantity: number of stations = 68 Description: CTD data probably lost
Optics (eg underwater light levels)
Description: light profiles
Chemical oceanography
Phosphate
Quantity: number of stations = 17
Total - P
Nitrate
Quantity: number of stations = 14 Description: cont. recording