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Application of underwater light measurements in nutrient and production studies in shallow rivers
Author(s) -
WONG S. L.,
CLARK B.,
PAINTER D. S.
Publication year - 1976
Publication title -
freshwater biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.297
H-Index - 156
eISSN - 1365-2427
pISSN - 0046-5070
DOI - 10.1111/j.1365-2427.1976.tb01645.x
Subject(s) - cladophora , photosynthetically active radiation , turbidity , environmental science , nutrient , photosynthesis , sunlight , underwater , hydrology (agriculture) , ecology , algae , oceanography , biology , botany , geology , physics , geotechnical engineering , astronomy
Summary Due to fluctuations in water turbidity, river depth and total reflection from one river section to another, plant production is poorly correlated to solar radiation incident on the water surface. A relationship was observed between daily relative photosynthesis and photosynthetically available radiation (PAR) at the plant depth for Cladophora, with a correlation coefficient (r) of 0·73. Therefore, the effect of low light levels can be compensated for when evaluating nutrient‐growth relationships for Cladophora in the field.