A New Developmental Toxicity Test for Pelagic Fish Using Anchoveta (Engraulis ringens J.)

作者：Llanos Rivera A^*; Castro L R; Silva J; Bay Schmith E

来源：Bulletin of Environmental Contamination and Toxicology, 2009, 83(1): 23-28.

DOI：10.1007/s00128-009-9714-8

• Bioassay
• Engraulis ringens
• Ecotoxicity
• Potassium dichromate

A series of six 96-h static bioassays were performed to validate the use of anchoveta (Engraulis ringens) embryos as test organisms for ecotoxicological studies. The standardization protocol utilized potassium dichromate (K(2)Cr(2)O(7)) as a reference toxicant and egg mortality as the endpoint. The results indicated that the mean sensitivity of anchoveta embryos to potassium dichromate was 156.1 mg L(-1) (range: 131-185 mg L(-1)). The statistical data analysis showed high homogeneity in LC50 values among bioassays (variation coefficient = 11.02%). These results demonstrated that the protocol and handling procedures implemented for the anchoveta embryo bioassays comply with international standards for intra-laboratory precision. After secondary treatment, an effluent from a modern Kraft pulp mill was tested for E. ringens embryo toxicity, finding no significant differences from the controls.

• 出版日期2009-7