Turkish Journal of Zoology
Abstract
Abamectin (ABM) is a widely used pesticide in agriculture and aquaculture worldwide. However, limited information is available on the toxic impacts of ABM on nontarget marine organisms, necessitating further research to investigate the toxic impacts of ABM on marine life. Hence, this study examined the acute (0.5–2.5 μg/L for 24 and 48 h) and chronic (0.125–0.5 μg/L for 7 days) toxicity of ABM on the marine microcrustacean Artemia franciscana under different incubation conditions and at different stages of development. To simulate a more realistic environmental scenario, some of the exposure tests were conducted in the presence of food or with mechanical agitation of the test medium. Hatchability cyst, mortality of larvae (instars 1, 2, and 3), and several morphological parameters were selected as end points for toxicity assessment. The results demonstrated that ABM significantly decreased the hatching and emergence success following exposure to 1 and 2.5 μg/L for 24 h and 48 h, respectively, in all treatment groups (p ˂ 0.05). There was a concentration-dependent increase in mortality of larvae, with instar 2 indicating the greatest sensitivity to ABM, followed by instars 3 and 1. Body lengths of larvae (instars 1, 2, and 3) decreased with the dosage levels. Higher mortality was observed in the unfed tests, and the incubation method (with or without agitation) had no significant effect on ABM toxicity. Our results provide valuable toxicological data for assessing the impact of ABM on marine crustacean species and highlight its potential ecological risk to marine ecosystems.
Author ORCID Identifier
HASHEM KHANDAN BARANI: 0000-0003-4913-5750
SAHEL PAKZAD TOOCHAEI: 0000-0001-5427-2421
NARJES SANCHOOLI: 0009-0001-4728-0930
DOI
10.55730/1300-0179.3233
Keywords
Pesticide, Artemia, toxicity, environment, pollutant
First Page
281
Last Page
292
Publisher
The Scientific and Technological Research Council of Türkiye (TÜBİTAK)
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.
Recommended Citation
KHANDAN BARANI, H, PAKZAD TOOCHAEI, S, & SANCHOOLI, N (2025). Nontarget effects of abamectin on cysts and three larval stages of marine microcrustacean Artemia franciscana. Turkish Journal of Zoology 49 (5): 281-292. https://doi.org/10.55730/1300-0179.3233
