Collected reprints: Abstract 3536
Collected reprints
Abstract
Podamo, J. (1975). Ecometabolism of a shallow marine lagoon at Ostend (Belgium) : 1. Phytoplankton and phytobenthos dynamics. 10th Europ. Symp. Mar. Biol. 2: 485-499
Primary production parameters (numbers and identifications , pigments, photosynthesis, respiration, excretion) have been measured or estimated in a marine lagoon during 4 years.
On the seasonal scale, the succession pattern shows a spring bloom in April-May, a depression in May and a summer bloom from June to August. Various nannoplanctonic flagellates are responsible for these fluctuations, which are well paralleled by photosynthetic capacity variations. Primary production was computed using a light-photosynthesis function. Photosynthetic capacities and function parameters have been determined and discussed.
On the diel scale, a strong periodicity involving natural mortality was observed and taken into account. Uptake and regeneration rates of inorganic N as well as liberation and consumption of dissolved O2 matched this periodicity well. Turn-over times are very short and according recycling is intense.
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