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Uptake of selenium by aquatic organisms
Author(s) -
SANDHOLM M.,
OKSANEN H. E.,
PESONEN L.
Publication year - 1973
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.1973.18.3.0496
Subject(s) - daphnia pulex , selenium , plankton , zooplankton , daphnia , environmental chemistry , algae , pulex , fish <actinopterygii> , biology , scenedesmus , aquatic plant , cladocera , aquatic ecosystem , ecology , chemistry , fishery , macrophyte , organic chemistry
The Se content of aquatic organisms was lowest in aquatic plants, varying from 0.02 to 0.14 ppm (dry wt). Plankton samples contained from 1.1 to 2.4 ppm, fishes cultured in ponds 0.5 to 0.9 ppm, and fishes from natural environments 1.0 to 2.9 ppm. The phytoplankter, Scenedesmus dimorphus, actively concentrated 75 Se‐selenomethionine, but neither actively nor passively concentrated inorganic selenite. The zooplankton, consisting mostly of Daphnia pulex, absorbed 75 Se from selenite. In aquariums fish concentrated only a small amount of organic or inorganic Se directly from water, but did concentrate Se from food.