Metal bioaccumulation and histological alterations in Oreochromis andersonii at Itezhi-tezhi Dam downstream of a mining area in the Central Province of Zambia
Copyright © 2024. Published by Elsevier B.V..
The Itezhi-tezhi Dam on the Kafue River in Zambia is a major capture fishery. However, the upstream reaches of the Kafue River receive effluents from copper mines. It was unclear whether fish health in the dam is adversely affected due to the mining effluents. We investigated the health status of fish in Itezhi-tezh Dam using a histology-based fish health assessment protocol with Oreochromis andersonii as a bioindicator. Fish were sampled in the Itezhi-tezh Dam and at a reference site further upstream on the Kafue River before it enters the mining region. Metal bioaccumulation, biometric indices and histological alterations in the gills, gonads, hearts, kidneys and livers were assessed. The findings revealed significantly higher copper and selenium sediment concentrations (p = 0.02843 and p = 0.02107 respectively), bioaccumulation of copper and selenium, and increased histological alterations in the gills, kidneys and livers of fish in the Itezhi-tezhi Dam.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:107 |
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| Enthalten in: |
Environmental toxicology and pharmacology - 107(2024) vom: 15. Apr., Seite 104394 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Sihoka, Chris [VerfasserIn] |
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| Links: |
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| Themen: |
789U1901C5 |
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| Anmerkungen: |
Date Completed 16.04.2024 Date Revised 16.04.2024 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1016/j.etap.2024.104394 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM368725944 |
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| 245 | 1 | 0 | |a Metal bioaccumulation and histological alterations in Oreochromis andersonii at Itezhi-tezhi Dam downstream of a mining area in the Central Province of Zambia |
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| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a Copyright © 2024. Published by Elsevier B.V. | ||
| 520 | |a The Itezhi-tezhi Dam on the Kafue River in Zambia is a major capture fishery. However, the upstream reaches of the Kafue River receive effluents from copper mines. It was unclear whether fish health in the dam is adversely affected due to the mining effluents. We investigated the health status of fish in Itezhi-tezh Dam using a histology-based fish health assessment protocol with Oreochromis andersonii as a bioindicator. Fish were sampled in the Itezhi-tezh Dam and at a reference site further upstream on the Kafue River before it enters the mining region. Metal bioaccumulation, biometric indices and histological alterations in the gills, gonads, hearts, kidneys and livers were assessed. The findings revealed significantly higher copper and selenium sediment concentrations (p = 0.02843 and p = 0.02107 respectively), bioaccumulation of copper and selenium, and increased histological alterations in the gills, kidneys and livers of fish in the Itezhi-tezhi Dam | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Bioaccumulation | |
| 650 | 4 | |a Fish health | |
| 650 | 4 | |a Fish histology | |
| 650 | 4 | |a Heavy metal pollution | |
| 650 | 7 | |a Copper |2 NLM | |
| 650 | 7 | |a 789U1901C5 |2 NLM | |
| 650 | 7 | |a Selenium |2 NLM | |
| 650 | 7 | |a H6241UJ22B |2 NLM | |
| 650 | 7 | |a Water Pollutants, Chemical |2 NLM | |
| 650 | 7 | |a Metals, Heavy |2 NLM | |
| 700 | 1 | |a Wagenaar, Ina |e verfasserin |4 aut | |
| 700 | 1 | |a van Dyk, Cobus |e verfasserin |4 aut | |
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