 Given the species' very recent introduction into the Great Lakes, its impact is yet to be established.It is not expected to compete with the native "M. relicta", as it prefers the cold water environments below the lakes' thermocline, while "H. anomala" is best adapted to warmer conditions.In Europe, the species has been observed to disrupt food webs and alter nutrient and contaminant cycles of environments into which it was introduced.