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FOSSIL PIGMENTS IN THE SURFACE SEDIMENTS OF A MEROMICTIC LAKE 1
Author(s) -
GORHAM EVILLE,
SANGER JON E.
Publication year - 1972
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.1972.17.4.0618
Subject(s) - transect , hypolimnion , detritus , slumping , epilimnion , eutrophication , chlorophyll a , geology , littoral zone , environmental science , oceanography , ecology , biology , paleontology , botany , nutrient
Pigment concentration and diversity were measured in surface sediments on a transect across a small, meromictic lake in northwest Wisconsin. Pigment concentrations increase several fold and diversity by a third from the shallowest to the deepest sediments. Monimolimnetic chlorophyll derivatives are about 3 × and carotenoids nearly 2× the hypolimnetic maxima in holomictic, eutrophic Minnesota lakes. Lower pigment concentrations at the deepest point along the transect suggest slumping of littoral detritus.