Environmental Sciences Europe

Table 2 Selected metrics and their association within community describing metric groups

From: Do changes in temperature affect EU Water Framework Directive compliant assessment results of central European streams?

Metric group	Metric	Explanation	Reference
Composition/Abundance	Total abundance	Describes the total number of all sampled species abundances
	Ephemeroptera, Plecoptera, Trichoptera %	Combined percentage of Plecoptera, Ephemeroptera and Trichoptera	Barbour et al. [5]
	EPTCBO %	Combined percentage of Plecoptera, Ephemeroptera, Trichoptera, Coleoptera, Bivalvia and Odonate.	Lorenz et al. [46]
	Plecoptera %	Percental contribution of Plecoptera to overall sample	Hering et al. [36]
	Trichoptera %	Percental contribution of Trichoptera to overall sample	Hering et al. [36]
	Ephemeroptera %	Percental contribution of Ephemeroptera to overall sample	Hering et al. [36]
	Coleoptera %	Percental contribution of Coleoptera to overall sample	Hering et al. [36]
	Bivalvia %	Percental contribution of Bivalvia to overall sample	Hering et al. [36]
	Odonata %	Percental contribution of Odonata to overall sample	Hering et al. [36]
	Hirudinea %	Percental contribution of Hirudinea to overall sample	Hering et al. [36]
	Gastropoda %	Percental contribution of Gastropoda to overall sample	Hering et al. [36]
	Diptera %	Percental contribution of Diptera to overall sample	Hering et al. [36]
	Crustacea %	Percental contribution of Crustacean to overall sample	Hering et al. [36]
Richness/Diversity	Number of Taxa	Total number of taxa present in a sample
	Number of Families	Total number of Families present in a sample
	Shannon–Wiener	Indicator of species diversity	Shannon and Weaver [65]
	Simpson Diversity	Indicator of species diversity	Simpson [67]
	Margalef richness	Indicator of species richness	Margalef [47]
	Evenness	Indicator referring to balanced species abundances
Tolerance/Sensitivity	German Saprobic Index	Indication or measure of the level of organic pollution	Rolauffs et al. [59]
	Saprobic index—Zelinka and Marvan	Indication or measure of the level of organic pollution	Zelinka and Marvan [75]
	BMWP Score	Measure of water quality according to aquatic invertebrate tolerance to pollutants	Hawkes [35]
	Average Score per Taxon	Average of the tolerance scores of all macroinvertebrate families found in a sample	Hawkes [35]
	Index of biocoenotic region	Index describing the distribution of macroinvertebrates in biocoenotic regions	Armitage et al. [2]
	CTI	Community Temperature Index	Haase et al. [32]
Functional groups	Active filter feeder %	Percental contribution of active filter feeder to overall sample	Hering et al. [36]
	Passive filter feeder %	Percental contribution of passive filter feeder to overall sample
	Gatherers and Collectors %	Percental contribution of gatherers and collectors to overall sample
	Grazers and Scrapers %	Percental contribution of Grazers and scrapers to overall sample
	Predators %	Percental contribution of predators to overall sample
	Shredders %	Percental contribution of shredders to overall sample
Others	Fauna Index	Descriptor of the macrozoobenthos on the basis of type-specific indicator species	Lorenz et al. [46]
Others	Multi-Metric Index	German national metric describing the general degradation of a site	Böhmer et al. [12]

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