Volume 8, Issue 5, October 2019, Page: 63-76
Pollution Status of Incomati River Estuary Based on Meiofauna Analyses (Free-living Nematodes) in Maputo, Mozambique
Soko Mthobisi Innocent, Inkomati-Usuthu Catchment Management Agency, Mbombela, South Africa
Gyedu-Ababio Thomas, Inkomati-Usuthu Catchment Management Agency, Mbombela, South Africa
Received: Sep. 23, 2019;       Accepted: Oct. 16, 2019;       Published: Oct. 23, 2019
DOI: 10.11648/j.wros.20190805.12      View  26      Downloads  6
The Incomati Estuary, is located at Latitudes 25.430 S and 25.530 S and Longitudes 32.410 E and 32.44° E and discharges in the northern part of Maputo Bay. Four sites E1 (Oligohaline Zone), E2 (Euhaline Zone), E3 (Mesohaline zone), and E4 (Polyhaline Zone) were selected following the salinity gradient of the Incomati River Estuary. Sediments samples were collected in these sites for both the analyses of meiofauna communities especially free-living nematodes and environmental variables such as Heavy Metal, Chlorophyll-a, Nitrates and Total phosphorus. Multivariate statistical analyses were used to analyses the data, and nematodes were identified into genus level. Higher concentration of Heavy Metals such as Cadmium, Cobalt, Chromium, Copper, Iron, Manganese, Nickel, Vanadium, Zinc, and Aluminium were found at site E2. Nematodes such as Terschellingia and Theristus were found to be suitable indicators in identifying pollution. The Maturity Index further indicated that sites E2 followed by E1 were the polluted sites in the estuary. Further studies confirming the findings of this study must be done in the Incomati River Estuary, and other studies must be done in the African Coast in order to understand free-living nematodes and close the gap in our monitoring strategies.
Nematodes, Pollution, Sediments, Chlorophyll-a, Metals, Nitrates
To cite this article
Soko Mthobisi Innocent, Gyedu-Ababio Thomas, Pollution Status of Incomati River Estuary Based on Meiofauna Analyses (Free-living Nematodes) in Maputo, Mozambique, Journal of Water Resources and Ocean Science. Vol. 8, No. 5, 2019, pp. 63-76. doi: 10.11648/j.wros.20190805.12
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