Histopathology of the liver and gills of Labeo rosae (rednose Labeo) from Loskop Dam in South Africa

dc.contributor.authorLebepe, Jeffrey
dc.contributor.authorSteyl, Johan Christian Abraham
dc.contributor.authorLuus-Powell, Wilmien J.
dc.date.accessioned2021-10-21T09:10:48Z
dc.date.available2021-10-21T09:10:48Z
dc.date.issued2020
dc.description.abstractThe Loskop Dam is the most polluted impoundment in the Olifants River, because it receives pollutants from the entire mine-dominated upper catchment. However, histopathology of fish inhabiting this polluted dam is scantly explored. The current study aimed to investigate the histopathology of the gills and liver of Labeo rosae from Loskop Dam. Alkaline pH was observed throughout the study with most metal concentrations exceeding the water quality guideline for aquatic ecosystems. Regressive changes were the most prominent lesions for both organs with gills showing relatively more pathologies than the liver. Epithelial lifting was 100% prevalent during both seasons in the gills whereas a significant expansion of lipofuscin-laden melanomacrophages (MMCs) showed 100% prevalence in the liver. Gills were significantly different in their prevalence of histopathology between the two seasons, which was not the case for liver. The histopathology recorded in this study shows that the health of L. rosae at Loskop Dam was compromised. Given the exacerbating pollution level in the upper Olifants River, these findings serve as a warning to conservation authorities and emphasise the necessity for regular monitoring of fish health at Loskop Dam to assess pollution levels using fish health as a sensitive indicator to altering pollution levels.en_ZA
dc.description.departmentParaclinical Sciencesen_ZA
dc.description.librarianhj2021en_ZA
dc.description.sponsorshipThe South African Research Chairs Initiative of the Department of Science and Technology, the National Research Foundation of South Africa, the Flemish Interuniversity Council (VLIR-UOS) and Division for Research Administration and Development, University of Limpopo.en_ZA
dc.description.urihttps://www.tandfonline.com/loi/tafz20en_ZA
dc.identifier.citationJeffrey Lebepe, Johan Steyl & Wilmien J Luus-Powell (2020) Histopathology of the liver and gills of Labeo rosae (rednose Labeo) from Loskop Dam in South Africa, African Zoology, 55:2, 167-174, DOI: 10.1080/15627020.2020.1740610.en_ZA
dc.identifier.issn1562-7020 (print)
dc.identifier.issn2224-073X (online)
dc.identifier.other10.1080/15627020.2020.1740610
dc.identifier.urihttp://hdl.handle.net/2263/82209
dc.language.isoenen_ZA
dc.publisherNISC (Pty) Ltd and Informa UK Limited (trading as Taylor and Francis Group)en_ZA
dc.rights© Zoological Society of Southern Africa. This is an electronic version of an article published in African Zoology, vol. 55, no. 2, pp. 167-174, 2020. doi : 10.1080/15627020.2020.1740610. African Zoology is available online at : https://www.tandfonline.com/loi/tafz20.en_ZA
dc.subjectAcid mine drainage (AMD)en_ZA
dc.subjectEpithelial liftingen_ZA
dc.subjectFish healthen_ZA
dc.subjectOlifants Riveren_ZA
dc.subjectWater pollutionen_ZA
dc.titleHistopathology of the liver and gills of Labeo rosae (rednose Labeo) from Loskop Dam in South Africaen_ZA
dc.typePostprint Articleen_ZA

Files

Original bundle

Now showing 1 - 1 of 1
Loading...
Thumbnail Image
Name:
Lebepe_Histopathology_2020.pdf
Size:
488.59 KB
Format:
Adobe Portable Document Format
Description:
Postprint Article

License bundle

Now showing 1 - 1 of 1
Loading...
Thumbnail Image
Name:
license.txt
Size:
1.75 KB
Format:
Item-specific license agreed upon to submission
Description: