Freshwater Community composition of fishes - EuropaBON/EBV-Descriptions GitHub Wiki
Community composition of fishes
Key | Value |
---|---|
ID | Eco_CC_com_fish_FW |
Realm | Freshwater |
EBV class | Community composition |
EBV name | Community composition of fishes |
Step in identification process | User & Policy Needs Assessment |
Definition | Composition of fishes in the European catchments and rivers network system (ECRINS), as measured by the Ecological Quality Ratio (EQR) or based on presence-absence or (relative) abundance of indicator taxa |
Metric | (Relative) abundance of fishes as sampled for the WFD or, if that is not available, the Ecological Quality Ratio (EQR) of fishes in the European catchments and rivers network system (ECRINS), expressed as a numerical value between zero (low) and one (high), quantifying the ecological status of fish community composition and its deviation from a reference condition. The metric describes the deviation from natural fish communities. |
Spatial resolution unit | ECRINS spatial units between fundamental catchment units and L2. |
Temporal resolution unit | 3 to 6 years |
Entity | Freshwater fish species with indicator value, as well as taxa without indicator value (at the level to which they are identified) as defined in the Water Framework Directive Intercalibration Technical Reports (Part 1, Rivers; Part 2, Lakes) |
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