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Free ionie nickel accumulation and localization in the freshwater zooplankter, Daphnia magna 1
Author(s) -
Hall T. M.
Publication year - 1982
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.1982.27.4.0718
Subject(s) - nickel , daphnia , daphnia magna , branchiopoda , cladocera , biology , carapace , chemistry , ecology , zooplankton , crustacean , toxicity , organic chemistry
The processes which lead to the accumulation of free ionic nickel (radioactive) from solution by Daphnia magna were studied and incorporated into a model which describes accumulation at different concentrations. Adsorption proved to be a relatively small component of nickel accumulation. The accumulation rate eventually approached zero, which represented an equilibrium between uptake and loss of nickel. However, elimination experiments did reveal a pool of relatively static nickel. The appearance and distribution of nickel within five body parts (body fluid, carapace, gut, filtering appendages, and eggs) of D. magna supported the accumulation data and added to the understanding of the pathways of nickel through the organism.