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Cynolebias leptocephalus

Unknown

Overview

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

Cynolebias leptocephalus faces severe threats from habitat destruction as temporary wetlands in its native range are drained for agricultural expansion and urban development. The species' dependence on seasonal pools makes it particularly vulnerable to hydrological changes caused by water extraction and altered precipitation patterns. Pollution from agricultural runoff and livestock grazing further degrades the water quality of remaining breeding sites.

Threat summary

Habitat

This annual killifish inhabits temporary pools, seasonal wetlands, and shallow floodplains in South American grasslands. The species requires ephemeral water bodies that fill during rainy seasons and dry completely during drought periods, allowing their drought-resistant eggs to survive in dried sediment.

FRESHWATER· major

Frequently asked questions

Why is Cynolebias leptocephalus classified as Endangered?
Cynolebias leptocephalus 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. Cynolebias leptocephalus faces severe threats from habitat destruction as temporary wetlands in its native range are drained for agricultural expansion and urban development. The species' dependence on seasonal pools makes it particularly vulnerable to hydrological changes caused by water extraction and altered precipitation patterns. Pollution from agricultural runoff and livestock grazing further degrades the water quality of remaining breeding sites.
Where does Cynolebias leptocephalus live?
Cynolebias leptocephalus 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 Cynolebias leptocephalus?
The main threats to Cynolebias leptocephalus 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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