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Formaldehyde toxicity is altered by calcium and organic matter
Author(s) -
Meinelt T.,
Pietrock M.,
Burnison K.,
Steinberg C.
Publication year - 2005
Publication title -
journal of applied ichthyology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.392
H-Index - 62
eISSN - 1439-0426
pISSN - 0175-8659
DOI - 10.1111/j.1439-0426.2004.00617.x
Subject(s) - formaldehyde , toxicity , biology , calcium , acute toxicity , organic matter , environmental chemistry , toxicology , biochemistry , chemistry , ecology , organic chemistry
Summary Formaldehyde is one of the shortlist substances permitted for use in aquaculture. Toxicity of formaldehyde and therapeutical success is influenced by water parameters. However, there is a lack of information on the interaction of organic carbon and calcium (Ca 2+ ) on the toxicity of formaldehyde. Laboratory experiments were conducted to test the combined effects of Ca 2+ and natural organic matter (NOM) on formaldehyde toxicity. Zebrafish embryos were exposed to five concentrations of formaldehyde for 144 h. Juveniles exposed to high concentrations died; the embryos exposed to low concentrations were unable to hatch, particularly visible in the groups without NOM. The toxicity‐reducing effects of NOM are not attributable to the presence of Ca 2+ .