Comparative toxicity of copper and acridine to fish, Daphnia and algae
A comparison was made of the sensitivity of fish, Daphnia and algae to the toxic effects of copper and acridine. A series of toxicity tests was conducted with these organisms, and the following biological endpoints determined: LC50s for fish, LC50s and effects on reproduction of Daphnia and 50% inhibition of the growth rate of algae. The 96-h LCO50s for bluegill (Lepomis macrochirus) and Daphnia magna exposed to copper were 2.2 and 0.13 mg/L, respectively. A chronic exposure to 0.03 mg/L of copper for 14 d significantly decreased reproduction in Daphnia. Exposure to 0.4 and 0.2 mg/L copper inhibited the growth rate of Selenastrum capricornutum and Chlorella vulgaris, respectively, by 50%. The 96-h LC50s for fathead minnows (Pimephales promelas) and D. magna exposed to acridine were 2.3 and 3.1 mg/L, respectively. A chronic exposure to 1.25 mg/L acridine for 14 d significantly inhibited reproduction in Daphnia, and an exposure to 0.9 mg/L inhibited the growth rate of S. capricornutum by 50%. Based on the biological endpoints determined in these tests, Daphnia were more sensitive to copper than were fish or algae. In contrast, the most sensitive biological endpoint in tests with acridine was the inhibition of algal growth. Comparison of these test results indicates that short-term toxicity tests used for screening toxicants for possible environmental effects should include both plant and animal species. 16 references, 4 figures, 4 tables.
- Research Organization:
- Oak Ridge National Lab., TN
- OSTI ID:
- 5994735
- Journal Information:
- Environ. Toxicol. Chem.; (United States), Journal Name: Environ. Toxicol. Chem.; (United States) Vol. 4; ISSN ETOCD
- Country of Publication:
- United States
- Language:
- English
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63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ACRIDINES
ALGAE
ANIMALS
AQUATIC ORGANISMS
AROMATICS
ARTHROPODS
AZAARENES
AZINES
BRANCHIOPODS
CHLORELLA
COMPARATIVE EVALUATIONS
COPPER
CRUSTACEANS
DAPHNIA
DATA
ELEMENTS
ENVIRONMENTAL QUALITY
EXPERIMENTAL DATA
FISHES
GROWTH
HETEROCYCLIC COMPOUNDS
INFORMATION
INVERTEBRATES
METALS
MICROORGANISMS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PLANTS
PYRIDINES
REPRODUCTION
SENSITIVITY
TOXICITY
TRANSITION ELEMENTS
UNICELLULAR ALGAE
VERTEBRATES
WATER QUALITY