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Title: | Bisazir as a chemosterilant to control invasive vertebrates: ecotoxicity and efficacy to induce male sterility in Lithobates catesbeianus | Authors: | DESCAMPS, Sarah DE VOCHT, Alain |
Issue Date: | 2022 | Publisher: | REGIONAL EURO-ASIAN BIOLOGICAL INVASIONS CENTRE-REABIC | Source: | Management of Biological Invasions, 13 (4) , p. 769 -780 | Abstract: | Chemical sterilisation is a way to control populations of invasive exotic species. To investigate the potential to control populations of invasive American bullfrog (Lithobates catesbeianus), 26 adult male individuals were caught and injected with a dose of 0, 12.5, 25, 50, 100 mg/kg bisazir in order to induce DNA fragmentation in sperm cells and subsequent induce sterility. The results indicate that injecting 50 mg/kg bisazir causes significant fragmentation in the sperm of Lithobates catesbeianus. Before using chemicals in situ their potential risk for the environment should be documented. As a first step the inherent ecotoxic properties of bisazir were evaluated in both acute and chronic aquatic tests: microtox (Aliivibrio fischeri), microalga (Raphidocelis subcapitata), duckweed (Lemna minor), waterflea (Daphnia magna). The no effect concentration (NOEC) was 1 mg/l for Daphnia reproduction. Based on these results the predicted no effect concentration (PNEC) value was 20 µg/l. These results show the inherent ecotoxic properties of the compound and raise questions on the safe applicability in aquatic habitats. | Keywords: | Rana catesbeiana;American bullfrog;sterile-male-release technique;DNA fragmentation;chemical control;environmental risk | Document URI: | http://hdl.handle.net/1942/43204 | ISSN: | 1989-8649 | DOI: | 10.3391/mbi.2022.13.4.12 | ISI #: | 001128281400012 | Rights: | Descamps S and De Vocht This is an open access article distributed under terms of the Creative Commons Attribution License (Attribution 4.0 International - CC BY 4.0) | Category: | A1 | Type: | Journal Contribution |
Appears in Collections: | Research publications |
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