- update of parameters and addition of UTR parameters to schistosoma: schistosoma2 nucleotide level 0.852 | 0.738 exon level 0.607 | 0.655 transcript level 0.115 | 0.116 Decreased min_intron_len to 30 and ass_upwindow_size to 19: Schistosoma introns can be exceptionally short.