EN

Notopala sublineata

Unknown

Overview

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

Notopala sublineata faces severe population declines primarily due to water extraction and river regulation that reduces flow volumes in its freshwater habitats. Agricultural runoff and urban pollution have degraded water quality in many river systems where this species occurs. Introduced species, particularly exotic fish and other molluscs, compete for resources and may prey upon juvenile snails, further pressuring already fragmented populations.

Threat summary

Habitat

This freshwater gastropod inhabits slow-flowing rivers, streams, and permanent water bodies across southeastern Australia. It typically occurs in areas with sandy or muddy substrates and aquatic vegetation, preferring waters with stable flow regimes and good water quality.

Other threatened species in VIVIPARIDAE

CR

Bellamya liberiana

Unknown
CR

Margarya yangtsunghaiensis

Declining
Bellamya robertsoniCR

Bellamya robertsoni

Unknown
VU

Lioplax cyclostomatiformis

Unknown

Frequently asked questions

Why is Notopala sublineata classified as Endangered?
Notopala sublineata 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. Notopala sublineata faces severe population declines primarily due to water extraction and river regulation that reduces flow volumes in its freshwater habitats. Agricultural runoff and urban pollution have degraded water quality in many river systems where this species occurs. Introduced species, particularly exotic fish and other molluscs, compete for resources and may prey upon juvenile snails, further pressuring already fragmented populations.
Where does Notopala sublineata live?
Notopala sublineata 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 Notopala sublineata?
The main threats to Notopala sublineata 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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