The twobar seabream, Acanthopagrus bifasciatus (Teleostei: Sparidae), in the western Mediterranean Sea: a likely ship-borne introduction

On November 2019, a single individual of Acanthopagrus bifasciatus was captured along the coast of Barcelona. Its external characteristics were described and morphologically analysed. This record represents the second confirmed observation of this species in the Mediterranean Sea and the first for the western basin. Its detection in a commercial harbour supports the hypothesis of a ship-borne introduction.