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An assessment of the bioaccumulation of estrone in Daphnia magna
Author(s) -
Gomes Rachel L.,
Deacon Hannah E.,
Lai Ka M.,
Birkett Jason W.,
Scrimshaw Mark D.,
Lester John N.
Publication year - 2004
Publication title -
environmental toxicology and chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.1
H-Index - 171
eISSN - 1552-8618
pISSN - 0730-7268
DOI - 10.1897/02-613
Subject(s) - bioconcentration , daphnia magna , bioaccumulation , biomagnification , chlorella vulgaris , daphnia , environmental chemistry , estrone , biology , zooplankton , chemistry , ecology , toxicity , algae , biochemistry , organic chemistry , hormone
Abstract The bioaccumulation of estrone by Daphnia magna was determined. Direct uptake via the aqueous medium occurred within the first 16 h. A bioconcentration factor of 228 was established over all temporal periods. Ingestion via Chlorella vulgaris gave a partitioning factor of 24, which may approximate to a biomagnification factor assuming steady state conditions. These preliminary results indicate that the partitioning to Daphnia magna via the food source, C. vulgaris is less significant than bioconcentration.