Contrary to single-genome assemblers (e.g., Velvet and SOAPdenovo), MetaVelvet assumes metagenomics settings. Accordingly, k-mer coverage histogram might be multi-modal rather than uni-modal. Please note that the coverage peak parameters can largely affect MetaVelvet assembling results. Although simple and automatic peak detection algorithm is implemented in meta-velvetg, we strongly recommend manual inspection of k-mer coverage peaks and manual setting of the coverage peak parameters. For manually setting the coverage peak parameters, please execute the following procedures.