University of Aden researchers detect invasive mollusk in Abyan

Researchers from the University of Aden have documented the presence of an invasive mollusk species, the tropical slug Laevicaulis alte, in the Al Mahfid district of Abyan governorate. This marks the first recorded instance of this species in Yemen's southern coastal plain, which stretches from Bab al-Mandab to the border with Oman.

Originally native to central and southern Africa, this slug is classified globally as a high-risk invasive agricultural pest. It has spread internationally through the trade of agricultural seedlings. The species is highly adaptable to high temperatures and can cause significant damage to leafy crops, ornamental plants, and small seedlings.

Beyond agricultural damage, the slug serves as an intermediate host for parasitic nematodes that can cause eosinophilic meningitis, a public health concern. Researchers noted that regional trade in agricultural goods facilitates its spread, as eggs and larvae can easily evade visual inspections by hiding in moist soil or plant roots. The study recommends stricter customs inspections for incoming seedlings and expanded field surveys across Yemen's agricultural regions.