Frequency of taxa identified corresponding to each taxon analysed with the mini-COI barcodes.

Generated by 454 pyrosequencing, the table displays the taxonomic rank, the frequencies of samples and the corresponding sample size in brackets, and the number of sequences corresponding to taxa identified by barcoding and belonging to the same order of the taxa analysed. A frequency of 100% means that all samples of the taxa analysed had at least two sequences of the taxa identified by barcoding (BLAST+ with E-value = 10−20, FASTA with 85% similarity threshold, and Nearest Neighbour algorithm for the final identification).