EN

Jenynsia sanctaecatarinae

Unknown

Overview

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

Jenynsia sanctaecatarinae faces severe population decline primarily due to habitat degradation from urban development and agricultural expansion along Brazil's coastal regions. Water pollution from industrial discharge and agricultural runoff has contaminated the freshwater systems this endemic species depends upon. The species' extremely limited range makes it particularly vulnerable to localized environmental changes, with habitat fragmentation isolating remaining populations.

Threat summary

Habitat

This endemic Brazilian fish inhabits freshwater streams, rivers, and associated wetlands in the coastal Atlantic Forest region of Santa Catarina state. The species requires clean, well-oxygenated waters with moderate flow rates and abundant aquatic vegetation.

FRESHWATER· major

Other threatened species in ANABLEPIDAE

EN

Onesided Livebearer

Jenynsia maculata

Unknown
EN

Jenynsia diphyes

Declining
EN

Jenynsia tucumana

Declining
EN

Jenynsia alternimaculata

Unknown

Threatened in Brazil

Striped SmoothhoundCR

Striped Smoothhound

Mustelus fasciatus

Declining
VU

Mussismilia hispida

Declining
VU

Myrcia carioca

Declining
Brasilia TapaculoEN

Brasilia Tapaculo

Scytalopus novacapitalis

Declining

Frequently asked questions

Why is Jenynsia sanctaecatarinae classified as Endangered?
Jenynsia sanctaecatarinae 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. Jenynsia sanctaecatarinae faces severe population decline primarily due to habitat degradation from urban development and agricultural expansion along Brazil's coastal regions. Water pollution from industrial discharge and agricultural runoff has contaminated the freshwater systems this endemic species depends upon. The species' extremely limited range makes it particularly vulnerable to localized environmental changes, with habitat fragmentation isolating remaining populations.
Where does Jenynsia sanctaecatarinae live?
Jenynsia sanctaecatarinae occurs in Brazil. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Jenynsia sanctaecatarinae?
The main threats to Jenynsia sanctaecatarinae 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.

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