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[3] [11] [12] There are significant variations depending on exact species, especially in Lake Titicaca where there is a degree of niche differentiation, including some that mainly feed on zooplanktonic organisms, two (O. albus and O. cuvieri) that are particularly willing to take other fish, primarily smaller Orestias (fish eggs are regularly ...
Each species of Orestias has varying size. The Titicaca orestias was the largest species in the genus. [4] The maximum recorded size is 22 cm (8.7 in) in standard length and 27 cm (10.6 in) in total length, which is considerably larger than most other species; only O. pentlandii at up to 20 cm (7.9 in) and 23.5 cm (9.3 in), respectively, comes close.
The many Orestias species in Lake Titicaca differ significantly in both habitat preference [35] and feeding behavior. [36] About 90% of the fish species in the basin are endemic, [34] including 23 species of Orestias that only are found in the lake. [37] Andean coot among totora sedges
Orestias ascotanensis is a species of freshwater ray-finned fish within the family Cyprinodontidae, [1] endemic to 12 springs in the Ascotán Salt Flat in Chile. [2] It grows to a length of 7.5 centimeters. [3]
Orestias elegans is a species of pupfish from the family Cyprinodontidae. [3] The type locality are small lakes among headwaters of Río Rimac , in Peru. [ 4 ] It is part of the agassii species complex.
Orestias chungarensis. Vila & M. Pinto, 1987. Orestias chungarensis is a species of fish in the family Cyprinodontidae. It is endemic to Lake Chungara in Chile. [2]
Orestias parinacotensis, locally known as karachi, [2] is a species of pupfish in the family Cyprinodontidae.It is endemic to northern Chile. [3] This fish was described in 1982 by María Gloria Eliana Arratia Fuentes from a type locality given as a wetland near the hamlet of Parinacota, Chile called the Bofedales de Parinacota.
Orestias laucaensis. Arratia, 1982. Orestias laucaensis is a species of fish in the family Cyprinodontidae. It is endemic to the Lauca River in Chile. [2] Sources