Accumulation and response to stress in climbing perch (Anabas testudineus) on exposure to high concentrations of lead and cadmium in water

In this study, lead (Pb) and cadmium (Cd) were used as chemical stressors. Healthy A. testudineus were exposed to Pb (20, 30, and 40 mg/L) and Cd (3, 5, and 10 mg/L) for 7, 14, 21, and 28 days to assess the response of A. testudineus elicited by these metals. The tendency of Pb and Cd accumulation i...

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Bibliographic Details
Published in:	European zoological journal Vol. 89; no. 1; pp. 877 - 887
Main Authors:	Nha Khanh, D. N., Tuong Vy, N. T., Quoc Thang, N., Trung Sy, D., Quang Minh, B., The Anh, N., Bao Tran, D. V., Khue Tu, L., Kim Phuong, N. T.
Format:	Journal Article
Language:	English
Published:	Abingdon Taylor & Francis 31-12-2022 Taylor & Francis Ltd Taylor & Francis Group
Subjects:	Anabas testudineus blood glucose Cadmium Cortisol Glucose Heavy metals Hormones Lead Liver plasma cortisol
Online Access:	Get full text
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Summary:	In this study, lead (Pb) and cadmium (Cd) were used as chemical stressors. Healthy A. testudineus were exposed to Pb (20, 30, and 40 mg/L) and Cd (3, 5, and 10 mg/L) for 7, 14, 21, and 28 days to assess the response of A. testudineus elicited by these metals. The tendency of Pb and Cd accumulation in the tissues of A. testudineus was as follows: gill >> liver > muscle for Pb and liver >> gill > muscle for Cd. Endocrine stress response was characterized by varying the levels of cortisol and glucose plasma. Exposure to both Pb and Cd caused significantly increase levels of plasma cortisol (p < 0.05), while blood glucose levels slightly increased at the beginning and then decreased sharply. Based on the erratic changes in levels of plasma cortisol and blood glucose, it can be concluded that exposure to high concentrations of Pb and Cd does not cause death; however, it adversely affects the interrenal and pancreatic activities of A. testudineus. Biochemical changes can be used as biomarkers for stress assessment and management in fish.
ISSN:	2475-0263 2475-0255 2475-0263
DOI:	10.1080/24750263.2022.2096129