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Factors relating to annual planktonic primary production in five small oligotrophic lakes in Terra Nova National Park, Newfoundland
Author(s) -
Kerekes Joseph J.
Publication year - 1977
Publication title -
internationale revue der gesamten hydrobiologie und hydrographie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.524
H-Index - 52
eISSN - 1522-2632
pISSN - 0020-9309
DOI - 10.1002/iroh.1977.3510620303
Subject(s) - environmental science , plankton , insolation , structural basin , hydrology (agriculture) , oceanography , geology , climatology , paleontology , geotechnical engineering
Annual planktonic primary production in five small oligotrophic lakes in Newfoundland, as measured at maximum depth ( P ‐area) ranged from 5.6 to 12.0 g C/m 2 /year. Production per unit surface area representative of the whole lake basin ( P ‐area ) was considerably lower in the shallower lakes (3.3 to 6.4 g C/m 2 /yr), while production expressed per unit volume representative of the whole lake basin ( P ‐vol ) was the higher in the shallower lakes (0.6 to 4.1 g C/m 3 /yr). Production efficiency varied from lake to lake and throughout the year, but it remained fairly stable in a shorter term. Production efficiency and insolation was used to estimate annual production. Lakes with higher summer concentration of total phosphorus had higher rates of carbon assimilation.