Glossary
Please find below a glossary of technical terms and abbreviations used on our web site.
| Macroinvertebrates | Aquatic insects, worms, clams, snails and other animals without backbones that can be determined without the aid of a microscope and that live in or on sediments |
| Macrophytes | Aquatic plants, either free-floating or attached to the bottom, which can be determined by the naked eye without the need for a microscope |
| Macrozoobenthos | (Also Macroinvertebrates): Small animals without backbones that live on or in the sediments underwater and can be seen without the help of a microscope (i.e. larger than 0.5 mm). A huge variety of aquatic insects, worms, snails, clams, crabs and other animals belong to this group |
| MD | Republic of Moldova |
| ME | Montenegro |
| MK | North Macedonia |
| MONERIS | Modelling Nutrient Emissions in River Systems |
| MoU | Memorandum of Understanding |
| MS | Member State |
| MSFD | Marine Strategy Framework Directive |
