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ULTRAPLANKTON BIOMASS, PRODUCTIVITY AND EFFICIENCY IN LAC MATAMEC, A PRECAMBRIAN SHIELD LAKE 1, 2
Author(s) -
Ross P. E.,
Duthie H. C.
Publication year - 1981
Publication title -
journal of phycology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.85
H-Index - 127
eISSN - 1529-8817
pISSN - 0022-3646
DOI - 10.1111/j.1529-8817.1981.tb00837.x
Subject(s) - biology , productivity , biomass (ecology) , precambrian , phytoplankton , primary productivity , shield , botany , ecology , nutrient , paleontology , macroeconomics , economics
In extremely oligotrophic Lac Matamec (Quebec, Canada) the ultraplankton (<15 μm) represented 47% of total phytoplankton biomass but accounted for 71% of the primary production and was 2.5 times more photosynthetically efficient than larger phytoplankton. Cell surface area was a good predictor of efficiency, while cell numbers and bio‐mass were not. High surface:volume ratios may explain the high efficiency of the ultraplankton.