Community participation in river monitoring using diatoms: a case study from the Buffelspoort Valley Conservancy

Abstract

This study was undertaken to determine the present ecological state of rivers and streams in the Buffelspoort Valley Conservancy (BVC), against which later potential changes in, and impacts on, water quality could be measured. After very brief training, all field work, including site selection and sample collection, was carried out by the members of the Conservancy. All samples collected by the members of the Conservancy were of an adequate quality for analysis and yielded meaningful results. This study demonstrates that there is great potential for the use of diatoms in community monitoring programmes, mainly due to the ease and rapidity with which samples can be collected. The participation of communities is also vital in gaining a more complete overview of the diatom species occurring in South Africa.

Recent views on river pollution and diatoms

“…Several papers assessed the possibility of using diatoms as river bioindicators de la Rey et al, 2008b). It is stressed that only brief field training is necessary to correctly sample diatoms, a major advantage of using this bioindicator (Taylor et al, 2009). The possibility of using epipelic diatoms to assess water pollution has also been investigated (Garcia-Rodriguez et al, 2007).…”