Endangered
Squalius keadicus
Squalius keadicus
Squalius keadicus is a minnow in the family Cyprinidae (order Cypriniformes), recorded as Endangered.
Appearance
The body is laterally compressed with dark brownish-blue colouration. D III/8, A III/8–9 (10), C 19, P I/13–15, V/II 7–9, Ll. 44–51, L. Transverse 9–10/3–4, gill rakers 7–9, vertebrae 38–42, mouth subterminal.
Maximum body length: the species grows up to 25 cm (9.8 in) TL, but more recently the longest specimen found had reduced to 15 cm (5.9 in) SL.
Range and habitat
According to Crivelli, S. Keadicus prefers habitats with slow current. Barbieri et al, even so, reported the species as energetic and strongly rheophilic, living in open sites of the river, on stony bottoms with a fast flow and relatively cool water. The strongly rheophilic behaviour confines the species to river sections of increased flow, an area that is estimated to be far less than 10 km2 (3.9 sq mi).
Pins are Wikidata “endemic to” fields. Orange dots, when present, are GBIF occurrence tiles — survey bias included.
Breeding
The breeding season is generally restricted in mid-spring.
In crisis
It is threatened by habitat loss. The major threats are summer drought and concomitant water over-abstraction that lead to habitat degradation and loss. One of the possible consequences of the population decline is the reduction of the species' genetic diversity, that imposes a serious threat, as it lowers its ability to cope with adverse environmental changes.
In recent years, the population size in Evrotas has dramatically reduced. Moreover, the Vassilopotamos population is possibly extinct.
Squalius keadicus is Endangered on this catalog because that is the IUCN category stored on Wikidata. Confirm the official criteria and any later count on iucnredlist.org.
Sources
Written for this catalog from the English Wikipedia article on Squalius keadicus, Wikidata item Q1940860. Family and order context is original field-guide writing about the group, not a copied assessment of this one species. Wikipedia text is CC BY-SA. Not an IUCN assessment. Counts, when quoted, can change — confirm them on the recovery programme and on iucnredlist.org.
