Indoreonectes evezardi

Indoreonectes evezardi
Individual from the cave-adapted population
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Cypriniformes
Family: Nemacheilidae
Genus: Indoreonectes
Species: I. evezardi
Binomial name
Indoreonectes evezardi
(F. Day, 1872)

Indoreonectes evezardi is a species of ray-finned fish in the Nemacheilidae family. Earlier it was known as Nemacheilus evezardi described by Day (1878) captured from a river stream near Pune. It is endemic to India, found in the Western Ghats and the Satpuras. Most populations are found in normal streams, but two distinct cave-adapted forms of it are also exist in Kotumsar Cave.

Biological divergence in cave populations

Due to lack of light and limited source of energy input (food) the cave populations of Indoreonectes evezardi are either found in albinic form with very regressed eyes or with very limited pigmentation and small eyes while compared to its epigean counterparts. Due to subterranean mode of life the complete physiological activities of the cave forms get limited and//or altered .

IUCN status

Though in International Union for the Conservation of Nature (IUCN) Red List of Threatened Species, this particular species is designated in Least Concern (LR/lc)category, but it could not be ruled out that special attention is required to protect the cave forms of Indoreonectes evezardi.

References


This article is issued from Wikipedia - version of the 12/4/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.