2023 Early Hearing Detection & Intervention Conference
March 5-7, 2023 • Cincinnati, OH
5/27/2021 | 2:00 PM - 3:30 PM | DEVELOPING DIATOMS BIOMONITORING FRAMEWORK FOR THE UPPER TANA RIVER WATERSHED IN CENTRAL KENYA | Virtual Platform
DEVELOPING DIATOMS BIOMONITORING FRAMEWORK FOR THE UPPER TANA RIVER WATERSHED IN CENTRAL KENYA
The development of a scientific-based biomonitoring framework that is simple and robust enough for use by the general public remains a major limitation for sustainable management of ecosystems. Such a framework should be usable by the general population to support sustainable environmental management targets during rehabilitation and restoration initiatives. This research used diatoms assemblages within the framework of the USA EPA’s Biological Condition Gradient to monitor conditions of aquatic ecosystems in the Upper Tana River (UTR). Data on water quality and diatoms were collected in six major sub-catchments in UTR. Thirty-six sampling sites were established along a disturbance gradient from pristine then moderately to severely human-impacted areas. The Canonical correspondence analysis found significant relationship between diatoms assemblages and water quality parameters of conductivity (F = 2.92, p = 0.01), elevation (F = 1.92, p = 0.01, and moderately turbidity (F = 1.64, p = 0.07). As predicted, diatoms assemblages and water parameters grouped sampling sites along ecological condition gradients and it was possible to selected diatoms associated with pristine sites (BCG tiers 1 and 2) moderately disturbed (tiers 3 and 4) several disturbed sites in BCG tier 5 to 6.
- Pollution
- Rehabilitation
- Stream restoration
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Presenters/Authors
George Gatere Ndiritu
(), Karatina University, Kenya, gatereg@yahoo.com;
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Veronicah Muiruri
(), National Museums of Kenya, veronica.muiruri@yahoo.com;
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Taita Terer
(), National Museums of Kenya, Nairobi, Kenya, taaita@yahoo.com;
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