Various macroinvertebrate taxa inhabit Roaring Creek. At one site, there is one abundant macroinvertebrate taxon, with 25 to 100 individuals being observed. At this site, there are five common taxa and five present taxa, with 10 to 25 and 3 to 9 individuals being observed, respectively. Eleven taxa are rare, with fewer than three individuals being observed. At another site, there are two abundant taxa, three common taxa, four present taxa, and eight rare taxa. At a third site on the creek, there are three abundant taxa, four common taxa, three present taxa, and seven rare taxa.