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High frequency endogenous periodicities of chlorophyll synthesis in estuarine phytoplankton 1
Author(s) -
Auclair J. C.,
Demers S.,
Fréchette M.,
Legendre L.,
Trump C. L.
Publication year - 1982
Publication title -
limnology and oceanography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.7
H-Index - 197
eISSN - 1939-5590
pISSN - 0024-3590
DOI - 10.4319/lo.1982.27.2.0348
Subject(s) - estuary , phytoplankton , chlorophyll , chlorophyll a , water column , population , environmental science , biology , oceanography , ecology , botany , geology , nutrient , demography , sociology
A 6‐h endogenous periodicity in chlorophyll synthesis, phased to tidally induced changes in the stability of the water column, was evidenced in a large volume sample of a natural estuarine phytoplankton population. Chlorophyll concentrations nearly doubled over a period of 2–3 h. This field evidence is in conceptual agreement with a physiological model of light‐shade adaptation based on changes in the rates of chlorophyll synthesis.