Sensitivity of isolated eggs of pond snails: a new method for toxicity assays and risk assessment.

T. Liu, J.M. Koene, X. Dong, R. Fu

Research output: Contribution to JournalArticleAcademicpeer-review

Abstract

The concentration of heavy metals in the environment is normally low. We here address whether using the development of isolated pond snail Radix auricularia eggs would provide a more sensitive endpoint and whether the gelatinous matrix of the egg mass surrounding the eggs indeed protects the snail embryos. In the present study, artificial removal of the gelatinous matrix of egg masses greatly increased the sensitivity of developing eggs to a heavy metal (cadmium). The sensitivity of isolated eggs to cadmium was determined using several convenient endpoints, including mortality, hatching rate, and heart rate, with an acute toxicity test and a subchronic test. In the acute toxicity test, a 96-h LC
Original languageEnglish
Pages (from-to)4183-4190
JournalEnvironmental Monitoring and Assessment
Volume185
DOIs
Publication statusPublished - 2013

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