Macrophyte
Définition
Sens commun
All aquatic or amphibious plants visible to the naked eye, or usually living in colonies visible to the naked eye.Source
According to OFB
Species
Benthic invertebrate
Définition
Sens commun
Organism which populates the bottom of rivers and lives on the surface in the interstices of the substrate. For a great part, they are larvae, insects, molluscs and worms.Source
According to OFB
River Fish Index
Définition
Sens technique
Index for assessing the biological quality of the water of a river through an analysis of fish populations.Source
According to OFB
Standardized Global Biological Index
Définition
Sens technique
Index for assessing the biological quality of the water of a river through an analysis of macro invertebrates. The value of this index depends on both the quality of the physical environment (bottom structure, habitat diversity, river bank status, etc) and water quality.
Source
According to OFB
Adapted Global Biological Index
Définition
Sens technique
Index for assessing the biological quality of the water of a river through an analysis of macro invertebrates, adapted to the specificities of large and deep rivers, where the IBGN protocol (Standardized Global Biological Index) may not always be strictly respected.Source
According to OFB
Faunistic indicator group
Définition
Sens technique
Constitutive metrics of the Standardized Global Biological Index (IBGN), revealing the sensitivity of aquatic invertebrates to pollution (mainly organic).Source
According to OFB
Diatom
Définition
Sens commun
Microscopic brown algae with a siliceous skeleton.Source
According to OFB
Cell
Définition
Sens commun
Structural, functional and reproductive unit constituting all or part of a living being.Source
According to OFB