MarshMarshes are habitats dominated by grassy plants on a mineral substrate that is partially or completely submerged in water during the growing season. The majority of marshes are riparian, since they often open on a lake or river. However, they can also exist in isolation. They are found in freshwater or saltwater ecosystems.
SwampSwamps are dominated by ligneous vegetation, tree or shrub that grows on a mineral or organic soil subject to seasonal flooding or characterized by a high water table and water flow that is rich in dissolved minerals. Swamps can exist in isolation or open on lakes or rivers.
PondPonds are stagnant, unconfined bodies of water that may or may not be connected to the hydrographic basin. Ponds are usually two metres deep or less in midsummer. Water is present during most of the year. Any existing plant cover consists mainly of submerged or floating aquatic plants. Ponds can be of natural or man-made origin.
BogBog is a general term that refers to all types of peat-covered land. Bogs are poorly drained environments in which organic accumulation dominates the process of decomposition and humidification, independently of the botanical composition of plant remains.
Reference« Identification et délimitation des écosystèmes aquatiques, humides et riverains », Guide d’analyse des projets d’intervention dans les écosystèmes aquatiques, humides et riverains, Ministère du Développement durable, de l’Environnement et des Parcs, 14 p.
Additional information : http://www.mddep.gouv.qc.ca/Eau/rives/delimitation.pdf