Proceedings of the 6th Biennial Conference of Organization for Women in Science for the Developing World Nigeria (OWSD 2023)

Oxidative stress biomarkers in Trichiurus lepturus and Sardinella maderensis and the effects of heavy metal pollution in Lagos Lagoon, Nigeria

Authors
G. E. Ajani1, *, S. Akindele2, S. O. Popoola3, O. O. Oyatola3
1Department of Biological Oceanography, Nigerian Institute for Oceanography and Marine Research, Lagos, Nigeria
2Nigerian Institute of Medical Research, Yaba, Lagos, Nigeria
3Department of Physical Oceanography, Nigerian Institute for Oceanography and Marine Research, Lagos, Nigeria
*Corresponding author. Email: gloriaajani@gmail.com
Corresponding Author
G. E. Ajani
Available Online 18 December 2023.
DOI
10.2991/978-94-6463-306-1_21How to use a DOI?
Keywords
antioxidant enzymes;; heavy metals;; Trichiurus lepturus;; Sardinella maderensis
Abstract

Contaminants like heavy metals are discharged into aquatic ecosystems from anthropogenic activities. The responses of Trichiurus lepturus and Sardinella maderensis to heavy metals in three sampling stations from Lagos Lagoon, in the vicinity of wood, textile and power plant industry, as well as control site in Badagry were determined. Heavy metals Pb, Cd, Cu, Cr and Zn were analyzed from fish muscle, water and sediment using atomic absorption spectrometry (AAS) to examine their concentrations and impacts on antioxidant defense enzymes such as superoxide dismutase (SOD), catalase (CAT) and lipid peroxidation (LPO) in the fish muscle. The results showed different effects in T. lepturus (TL) and S. maderensis (SM) in diverse sampling stations with varying degrees of pollution including the control site. Principal component analysis showed that fish samples from Makoko, Ibeshe and Egbin demonstrated a strong correlation between antioxidant defense enzymes and heavy metals concentrations in fish, water and sediment with PCA1 accounting for 56.27% of the loadings and was dominated by heavy metals and antioxidant enzymes in all the media. Variations in activities of antioxidant enzymes were observed in the muscles of T. lepturus and S. maderensis in relation to metal content. The toxic effects were observed as the activity of antioxidant enzymes increased with increased concentration of metals. Significant differences (p˂0.05) in SOD (U/mg protein) in TL (96.09±23.08), CAT (U/mg protein) in SM (3.09±1.08) and LPO (µmol/mg protein) in TL (81.28±03) between fish from sampling sites and control site were observed. The fish from the lagoon were found to be under severe stress as compared to the fish from the reference site. Hence, this study reflects the need for integrating antioxidant enzymes to assess the effects of pollutants in aquatic environments under complex interaction of pollutants.

Copyright
© 2023 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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Volume Title
Proceedings of the 6th Biennial Conference of Organization for Women in Science for the Developing World Nigeria (OWSD 2023)
Series
Advances in Biological Sciences Research
Publication Date
18 December 2023
ISBN
10.2991/978-94-6463-306-1_21
ISSN
2468-5747
DOI
10.2991/978-94-6463-306-1_21How to use a DOI?
Copyright
© 2023 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Cite this article

TY  - CONF
AU  - G. E. Ajani
AU  - S. Akindele
AU  - S. O. Popoola
AU  - O. O. Oyatola
PY  - 2023
DA  - 2023/12/18
TI  - Oxidative stress biomarkers in Trichiurus lepturus and Sardinella maderensis and the effects of heavy metal pollution in Lagos Lagoon, Nigeria
BT  - Proceedings of the 6th Biennial Conference of Organization for Women in Science for the Developing World Nigeria (OWSD 2023)
PB  - Atlantis Press
SP  - 319
EP  - 327
SN  - 2468-5747
UR  - https://doi.org/10.2991/978-94-6463-306-1_21
DO  - 10.2991/978-94-6463-306-1_21
ID  - Ajani2023
ER  -