Publication details
The impact of sediment removal on the aquatic macroinvertebrate assemblage in a fishpond littoral zone
| Authors | |
|---|---|
| Year of publication | 2011 |
| Type | Article in Periodical |
| Magazine / Source | Journal of Limnology |
| MU Faculty or unit | |
| Citation | |
| Web | http://www.jlimnol.it/index.php/jlimnol/article/view/jlimnol.2011.138 |
| Doi | http://dx.doi.org/10.3274/JL11-70-1-15 |
| Field | Zoology |
| Keywords | fishpond; restoration; macroinvertebrates; succession; biodiversity; functional groups |
| Description | Bottom sediment removal, a widely used technique in restoration management of standing water bodies, has a strong influence on communities of aquatic organisms. As most information on the impact of sediment removal on the aquatic environment comes from studies on lakes, the aim of this study was to describe macroinvertebrate assemblage succession in a fishpond (Štěpánek fishpond, Bohemian-Moravian highlands, Czech Republic) littoral zone following restoration by sediment removal during the winter of 2003/2004. Semi-quantitative hand net sampling was undertaken one year before (2003) and in each of the following five years (2004–2008) after sediment removal. A significant decrease in both abundance (approx. 90% of individuals) and diversity (approx. 30% of taxa) of macroinvertebrates was detected immediately after pond restoration. The values gradually increased over subsequent years, reaching comparable abundance and diversity three years after sediment removal. A significant shift was recorded in the taxonomic and functional composition of the macroinvertebrate assemblage after sediment removal. |
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