“…Of these approaches, the multimetric indices have been shown to perform extremely well particularly because they integrate information and data from multiple dimension of aquatic biota and the ecosystem as a whole (Bonada et al, ). Multimetric indices have been developed based on aquatic macrophytes (Aguiar, Feio, & Ferreira, ; Zervas, Tsiaoussi, & Tsiripidis, ); diatoms (Stevenson et al, ); phytoplankton (Katsiapi, Moustaka‐Gouni, & Sommer, ; Lugoli et al, ; Tsiaoussi, Mavromatic, & Kemitzoglou, ; Wu, Schmaz, & Fohrer, ); macroinvertebrates (Edegbene et al, ; Gieswein et al, ; Lu, Wu, Xue, Lu, & Batzer, ; Ntislidou et al, ); and fish (Petriki, Lazaridou, & Bobori, ). Macroinvertebrates are particularly useful for index development because they occupy an important position as consumers, can easily be collected, have high diversity, and are differentially sensitive to a gradient of pollution (Bonada et al, ; Odume et al, ).…”