Trauma linked to fishing nets and accidental capture of the torpedo ray

What is it?

The torpedo ray (Torpedo torpedo and Torpedo marmorata) is a cartilaginous fish capable of producing an electric discharge, present particularly along the Tunisian coasts. Like many marine species living near the bottom, it is frequently accidentally captured by fishing nets (trawls, gillnets, longlines) or injured during handling by fishermen. These events do not constitute a “disease” in the classic sense but a set of physical traumas and stress that can seriously compromise the survival of the animal.

This sheet describes the lesions and complications observed in a torpedo ray victim of accidental capture (“bycatch” or bycatch) or injured by fishing gear.

Signs depend on the type of trauma suffered.

Commonly observed signs

These signs are neither exhaustive nor specific. Only a veterinarian can establish a diagnosis.

References

WOAH — Organisation mondiale de la santé animale (ex-OIE)

FAO — Organisation des Nations unies pour l'alimentation et l'agriculture

Content reviewed by the TunisieVet editorial team · Updated 30 October 2026