Toxicity of herbicides to the marine microalgae Tisochrysis lutea and Tetraselmis sp.

ABSTRACT: Pesticides are ubiquitous in the catchments of the Great Barrier Reef (GBR) and regularly discharge into the nearshore waters. Effective management of pesticides requires suitable water quality guideline values (WQGVs), and further ecotoxicological data for many pesticides are needed to improve the reliability of environmental risk assessments. To help address this issue, toxicity thresholds were determined to two species of tropical marine microalgae Tisochrysis lutea and Tetraselmis sp. for a suite of herbicides detected in the GBR. Photosystem II (PSII) herbicides significantly reduced growth with no effect concentration (NEC) and 10% effect concentration (EC10) values spanning two orders of magnitude from 0.60 µg L^-1 for diuron to 60 µg L^-1 for simazine across bot

SUBMITTER: Flores F 

PROVIDER: S-EPMC10798944 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature