CR

Synodontis tourei

Unknown

Overview

Synodontis tourei is a species of upside-down catfish endemic to Guinea where it is found in the Bafing River. This species grows to a length of 10.5 centimetres (4.1 in) TL.

Synodontis tourei faces severe threats from dam construction and water extraction along the Senegal River system, which has dramatically altered natural flow regimes essential for spawning. Overfishing using fine-mesh nets has depleted breeding populations, while agricultural runoff and urban pollution have degraded water quality in its limited range. The species' restriction to specific rocky substrates in fast-flowing sections makes it particularly vulnerable to hydrological modifications.

Threat summary

Habitat

Synodontis tourei inhabits fast-flowing rocky sections of the Senegal River and its tributaries, particularly areas with granite outcrops and boulder substrates. The species requires well-oxygenated waters with strong currents for feeding and reproduction, typically found in rapids and cascades between 50-200 meters elevation.

FRESHWATER· major

Conservation measures underway

Species recoveryAwareness & communications

Frequently asked questions

Why is Synodontis tourei classified as Critically Endangered?
Synodontis tourei 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. Synodontis tourei faces severe threats from dam construction and water extraction along the Senegal River system, which has dramatically altered natural flow regimes essential for spawning. Overfishing using fine-mesh nets has depleted breeding populations, while agricultural runoff and urban pollution have degraded water quality in its limited range. The species' restriction to specific rocky substrates in fast-flowing sections makes it particularly vulnerable to hydrological modifications.
Where does Synodontis tourei live?
Synodontis tourei occurs in Benin, Guinea, Senegal, and Sierra Leone. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Synodontis tourei?
The main threats to Synodontis tourei are 3.2, 5.3, ai-1, and ai-2. The full IUCN-classified threat record for this species is detailed on the species page.

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