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Effects of low dissolved oxygen on survival, growth and reproduction of Daphnia, Hyalella and Gammarus
Author(s) -
Nebeker Alan V.,
Dominguez Stephen E.,
Chapman Gary A.,
Onjukka Samuel T.,
Stevens Donald G.
Publication year - 1992
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 - 10.1002/etc.5620110311
Subject(s) - hyalella azteca , daphnia pulex , daphnia magna , gammarus , cladocera , daphnia , zoology , biology , reproduction , water quality , branchiopoda , environmental chemistry , toxicology , toxicity , amphipoda , ecology , crustacean , chemistry , organic chemistry
Daphnia magna, Daphnia pulex, Hyalella azteca , and Gammarus lacustris were exposed to low dissolved oxygen concentrations in the laboratory. Acute and chronic exposures were conducted to develop data for use in the U.S. Environmental Protection Agency's (EPA's) water quality criteria document for dissolved oxygen. Daphnia magna had two 48‐h LC50s (50% mortality) of 0.6 and 0.7 mg/L, a highest‐adverse‐effect concentration of 0.6, and a lowest‐no‐adverse‐effect concentration of 0.9 mg/L O 2 (based on reproduction). Daphnia pulex had a 48‐h LC50 of 0.5, two 96‐h LC50s of 0.4 and 0.7, a highest‐adverse‐effect concentration of 1.6, and a lowest‐no‐adverse‐effect concentration of 2.1 mg/L O 2 (based on reproduction). Hyalella azteca had 96‐h and 30‐d LC50s of <0.3 mg/L, a highest‐adverse‐effect concentration of 1.2, and a lowest‐no‐adverse‐effect concentration of > 1.2 (based on reproduction). Gammarus lacustris had two 7‐d LC50s of <0.2 mg/L, a highest‐adverse‐effect concentration of <0.2, and a lowest‐no‐adverse‐effect concentration of 0.1 mg/L O 2 (based on survival). Lack of access to the water surface increased mortality. Nitrogen‐stripped and vacuum‐degassed test water produced the same mortality. Results of this study indicate that dissolved oxygen concentrations adequate to avoid impairment of fish production, as outlined in the EPA's water quality criteria document, should provide reasonable protection for these four species.