54- Ilyocypris ramirezi Cusminsky & Whatley, 1996

Global distribution: NT.

Argentinian distribution: Buenos Aires, Jujuy, La Pampa, Mendoza, Río Negro, Santa Cruz.

Ecology: This species has been found in a diverse range of aquatic habitats, including permanent lakes and lotic water bodies, from freshwater to sub-saline environments. It exhibits a wide altitudinal distribution, ranging from 59 to 956 m a.s.l., a broad temperature range, varying from 7.5 to 34.1 °C, in waters with a pH level ranging from neutral to alkaline (pH: 7.6–10.8) and a wide range of electrical conductivity values (215–51694 μS/cm). Dissolved oxygen saturation levels have been found to vary between 20% and 170%. Given its occurrence in such diverse conditions, this species is considered as an indicator of eutrophic environments.

Cited by: Ramírez (1967); Moguilevsky & Whatley (1995); Cusminsky & Whatley (1996); Schwalb et al. (2002); Cusminsky et al. (2005); Laprida (2006); Cusminsky et al. (2011); Ramón Mercau et al. (2012); Coviaga et al. (2015); D'Ambrosio et al. (2015, 2017); Crespo (2017); McGlue et al. (2017); Coviaga et al. (2018a); Cusminsky et al. (2020).