Uptake of selenium by aquatic organisms
M. Sandholm, H. E. Oksanen, L. J. Pesonen
Limnology and Oceanography
Abstract
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.
Extracted Claims
8 claims extracted from this paper into the knowledge graph
selenium content fishes cultured in ponds
“fishes cultured in ponds 0.5 to 0.9 ppm”
selenium content plankton samples
“Plankton samples contained from 1.1 to 2.4 ppm”
fish concentrated Se
“In aquariums fish concentrated only a small amount of organic or inorganic Se directly from water, but did concentrate Se from food”