RESUMO. O presente trabalho teve o objetivo de relatar a primeira ocorrência do camarão tigre-gigante Penaeus monodon Fabricius, 1798 no litoral piauiense. Foi capturado um único exemplar em março de 2015 por uma embarcação da frota camaroneira. No laboratório o espécime foi identificado, sexado, pesado e mensurado no comprimento do cefalotórax (CC), comprimento do pós-orbital (CPO) e comprimento total (CT). O exemplar capturado foi uma fêmea de 298,45 g, 316,20 mm (CT), 133,85 mm (CC), e 90,10 mm (CPO) capturada na faixa de profundidade de 4 a 6 metros na latitude: 2°50'51.1" S e longitude: 41°40'03.9" W. Palavras-chave: bioinvasão, Penaeus monodon, plataforma continental piauiense. ABSTRACT. This study aimed to report the first occurrence of giant asian tiger shrimp Penaeus monodon Fabricius, 1798 in Piauí coast. A unique example was captured in March 2015 by a shrimp fishing boat. In the laboratory the specimen was identified, sexed, weighed and measured in carapace length (CL), post-orbital length (POL) and length (TL). The exemplary captured it is a female with 298.45 g, 316.20 mm (TL), 133.85 mm (CL) and 90.10 mm (POL) and was found in the depth range of 4 to 6 meters in latitude: 02°50'51.1"S and longitude: 041°40'03.9"W.
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