Thousands of fish have died in a pollution spill near the coast of al-Haswa in al-Buraiqeh district, west of Aden.
Academics at Faculty of Science at the University of Aden attributed the phenomenon to marine pollution.
They said that an oil spill from dilapidated ships arriving at the port probably caused the mass death of the fish.
They also warned of the effects of repeated fish deaths on fish populations and the degradation of fish habitats due to continued pollution of the sea.
The death of fish in Aden has escalated in recent years due to pollution caused by the dumping of toxic waste by Saudi-led coalition ships and repeated oil spills, most recently in mid-July, when a fuel ship belonging to oil trader Ahmed al-Essi sank off the coast of Aden.