Macro-invertebrate are animals without backbones, visible to the naked eye. Data includes annual species richness and abundance (river macro-invertebrate). Data geographical coverage is 16 sites across the Newport facility Burrishoole catchment. Data on macro-invertabrates has been collected since 2003. Samples have been collected in the environment and counted in the Newport biology laboratory and maintained up-to-date. Macro-invertebrate monitoring supports understanding of the Newport Burrishoole catchment ecosystem status. Data has been collected by the Newport facility team within the Marine Institute (Ireland). Data sampling complete since 2003. Incomplete coverage pre-2003.