Rheophile

A rheophile is an animal that prefers to live in fast-moving water.

Examples of rheophilic animals

A white-throated dipper and grey wagtail, two avian rheophiles that forage at fast-running streams

Dippers (Cinclus)
Grey wagtail (Motacilla cinerea) and mountain wagtail (Motacilla clara)
A few swifts often nest behind waterfalls, including American black swift (Cypseloides niger), giant swiftlet (Hydrochous gigas), great dusky swift (Cypseloides senex) and white-collared swift (Streptoprocne zonaris)
Some waterfowl, including African black duck (Anas sparsa), blue duck (Hymenolaimus malacorhynchos), Brazilian merganser (Mergus octosetaceus), bronze-winged duck (Speculanas specularis), harlequin duck (Histrionicus histrionicus), Salvadori's teal (Salvadorina waigiuensis) and torrent duck (Merganetta armata)

A very large number of rheophilic fish species are known and include members of at least 419 genera in 60 families.^[3] Examples include:

Many species in the family Balitoridae, also known as the hill stream loaches.
Many species in the family Loricariidae from South and Central America
Many Chiloglanis species, which are freshwater catfish from Africa
The family Gyrinocheilidae.
Rheophilic cichlid genera/species:
- The Lamena group in the genus Paretroplus from Madagascar.
- Oxylapia polli from Madagascar.
- Retroculus species from the Amazon Basin and rivers in the Guianas in South America.
- Steatocranus species from the Congo River Basin in Africa.
- Teleocichla species from the Amazon Basin in South America.
- Teleogramma species from the Congo River Basin in Africa.
Mylesinus, Myleus, Ossubtus, Tometes and Utiaritichthys, which are serrasalmids from tropical South America
The Danube streber (Zingel streber), family Percidae.

^ Hynes, H. B. N. (1970). Ecology of Running Waters. Originally published in Toronto by University of Toronto Press, 555p.
^ Dijkstra, K.-D.B. "Genus Elattoneura Cowley, 1935 - African threadtails". addo.adu.org.za. frican Dragonflies and Damselflies Online. Retrieved 1 March 2022.
^ Nathan K. Lujan and Kevin W. Conway (2015). "Life in the Fast Lane: A Review of Rheophily in Freshwater Fishes". Pp. 107–307 in: R. Riesch et al. (eds.). Extremophile Fishes. Springer International Publishing, Switzerland. ISBN 978-3-319-13361-4.

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