EN

Chasmocranus brachynemus

Unknown

Overview

A detailed profile for this species is sourced from the IUCN Red List of Threatened Species as assessments become available.

Chasmocranus brachynemus faces severe pressure from deforestation and agricultural expansion throughout its limited range in South American river systems. Dam construction and water diversions have fragmented its freshwater habitat, while sedimentation from upstream mining activities degrades water quality essential for this catfish species. Overfishing in accessible river reaches has further reduced already small population numbers.

Threat summary

Habitat

This freshwater catfish inhabits clear, fast-flowing rivers and tributaries in the Amazon and Orinoco basins. It prefers rocky substrates and well-oxygenated waters with moderate to strong currents.

Other threatened species in HEPTAPTERIDAE

Pimelodella kroneiEN

Pimelodella kronei

Unknown
EN

Imparfinis lineatus

Unknown
CR

Rhamdia enfurnada

Unknown
CR

Rhamdia xetequepeque

Unknown

Frequently asked questions

Why is Chasmocranus brachynemus classified as Endangered?
Chasmocranus brachynemus is classified as Endangered — facing a very high risk of extinction in the wild — because population numbers are declining steeply and key habitats are under sustained pressure. Chasmocranus brachynemus faces severe pressure from deforestation and agricultural expansion throughout its limited range in South American river systems. Dam construction and water diversions have fragmented its freshwater habitat, while sedimentation from upstream mining activities degrades water quality essential for this catfish species. Overfishing in accessible river reaches has further reduced already small population numbers.
Where does Chasmocranus brachynemus live?
Chasmocranus brachynemus occurs in across multiple regions. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Chasmocranus brachynemus?
The main threats to Chasmocranus brachynemus are ai-1, ai-2, ai-3, and ai-4. The full IUCN-classified threat record for this species is detailed on the species page.

Get weekly conservation intelligence

One short digest a week of the most striking species and country data we ship, plus breaking conservation news paired with our database where it matters.

Free, no spam. One-click unsubscribe in every email.