Chara filiformis
CR

Chara filiformis

Local name: trådsträfse

Unknown

Photo: Photo: (c) silkeoldorff, all rights reserved, uploaded by silkeoldorff

Overview

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

Chara filiformis faces severe threats from habitat degradation and water quality deterioration in its freshwater environments. Eutrophication from agricultural runoff and urban pollution has dramatically reduced suitable habitat, while climate change-induced alterations to water chemistry and temperature further compromise this sensitive aquatic macrophyte's survival.

Threat summary

Habitat

Clear, calcium-rich freshwater lakes, ponds, and slow-moving streams with sandy or muddy substrates, typically in shallow waters up to 10 meters deep. Requires low-nutrient, alkaline conditions and is particularly sensitive to water quality changes.

Other threatened species in Characeae

Starry StonewortVU

Starry Stonewort

Nitellopsis obtusa

Unknown
Pointed StonewortVU

Pointed Stonewort

Nitella mucronata

Unknown
Slender StonewortVU

Slender Stonewort

Nitella gracilis

Unknown
Translucent StonewortVU

Translucent Stonewort

Nitella translucens

Unknown

Frequently asked questions

Why is trådsträfse classified as Critically Endangered?
trådsträfse is classified as Critically Endangered — facing an extremely high risk of extinction in the wild — because population sizes are very small, declining sharply, or restricted to a tiny range. Chara filiformis faces severe threats from habitat degradation and water quality deterioration in its freshwater environments. Eutrophication from agricultural runoff and urban pollution has dramatically reduced suitable habitat, while climate change-induced alterations to water chemistry and temperature further compromise this sensitive aquatic macrophyte's survival.
Where does trådsträfse live?
trådsträfse 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 trådsträfse?
The main threats to trådsträfse 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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