BIO 203



Helicodiscus parallelus  have recently been discovered in Jamaica (Rosenberg, G.), where land has been either cultivated for agriculture or otherwise disturbed by humans.  This suggests an issue with invasive species, which may actually result in positive effects.  The fens in which these organisms live are highly calcareous, this type of fen is known to draw in phosphorus and remove nitrates from water (Bedford, B.L., 608).  Therefore, in areas of high high nitrate contamination, these habitats can remove said pollutants and let only denitrified water back into the groundwater supply.