Effects of long-term chlorpyrifos exposure on mortality and reproductive tissues of Banded Gourami (Trichogaster fasciata). Issue 7 (3rd July 2019)

• Record Type: Journal Article
• Authors: Sumon, Kizar Ahmed; Yesmin, Most. Farzana; Van den Brink, Paul J.; Bosma, Roel H.; Peeters, Edwin T. H. M.; Rashid, Harunur
• Is Part Of: Journal of environmental science and health. Volume 54:Issue 7(2019)
• Page Start: 549
• Page End: 559
• Publication Date: 2019-07-03
• Subjects: Aquatic environment -- fish -- histopathology -- organophosphate pesticide -- reproductive toxicity; Pesticides -- Environmental aspects -- Periodicals; Food contamination -- Periodicals; Agricultural wastes -- Environmental aspects -- Periodicals; Ecology -- periodicals; Pesticides -- toxicity -- periodicals; Food Contamination -- periodicals; 363.73
• DOI: 10.1080/03601234.2019.1614399
• Languages: English
• ISSNs: 0360-1234

Abstract

Abstract: This study assessed the long-term toxicity of chlorpyrifos on survival and reproduction of Banded Gourami by using mortality, gonado-somatic index (GSI) and histopathological observations as endpoints. Adult fish were exposed to five different concentrations of chlorpyrifos (0, 15, 50, 150, 500 µg/L) in 15 PVC tanks for 15, 30, 45, 60 and 75 days. Results showed that all male and female fish died after 15 days of 500 µg/L chlorpyrifos exposure. No consistent significant effect was observed for both male and female GSI. Furthermore, results showed dose- and time-dependent histopathological alterations for both ovary and testes. The 60-d No Observed Effect Concentration (NOEC) for most histopathological alterations of Banded Gourami ovary and testes was 50 μg/L, while 60-d NOEC for mortality of both male and female fish was < 15 μg/L. The results show that the long-term exposure to chlorpyrifos not only affect the reproductive tissues of Banded Gourami at exposure concentrations but also cause their mortality. Future studies should evaluate effects at lower concentrations.