Genus Koima

19-11-2024

08:36 AM

timer
1 min read
Genus Koima Blog Image

Overview:

A team of researchers have discovered Koima, a new genus of freshwater fish endemic to the Western Ghats.

About Genus Koima:

  • The generic name, Koima is derived from Malayalam and is the vernacular word used for loaches.
  • It encompasses two known species that were previously assigned under the genus Nemacheilus.
  • Features of genus Koima
    • It has a unique colour pattern comprising a yellowish-brown ground colour, single row of black spots on lateral line, all fins hyaline, and absence of a uniform banding pattern on dorsal side.
  • Habitat: Kunthi, Bhavani, Moyar, Kabini, and Pambar rivers in the Western Ghats.

Species belongs to Genus koima

  • Koima remadevii
    • It typically inhabits swift-flowing riparian streams with substrates comprising rocks, boulders, and gravel, with sand and silt patches scattered throughout.
    • Koima remadevii thrives in fast-flowing streams with rocky substrates. These fish seek shelter in the gaps between rocks and beneath boulders, finding protection from strong currents.
    • Currently it is only known from its type locality in the Kunthi river inside Silent Valley National Park.
  • Koima monilis: It inhabits various tributaries of the Cauvery river, occupying microhabitats ranging from large rivers to small, fast-flowing streams at elevations between 350 and 800 m. 

Q1: What is a microhabitat?

It refers to a small-scale environment that supports a distinct flora and fauna, ranging from tree hollows to larger areas, and is selected based on the specific needs and thermal requirements of the target species.

News: A new genus of freshwater fish discovered in Western Ghats