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The Mediterranean Sea is considered an aquatic biodiversity hotspot that hosts approximately 782 fish species and 72 of them are categorized as endemic. However, nonnative species introductions that are of natural or human-mediated origin have posed a major threat to the biodiversity of the Mediterranean Sea which is showing high rates of endemism. Here, we represent historical and recent updated data alien (Champsodon nudivittis, Nemipterus randalli, Pterois miles, Scarus ghobban, Scomberomorus commerson), neonative (Seriola fasciata, Sphoeroides pachygaster) fishes spreading on the Aegean Sea. [ABSTRACT FROM AUTHOR]

The article reports presence of the fish Champsodon vorax in the Aegean Sea. Topics discussed include collection of specimen of C. vorax from the sea, morphological analysis revealing meristic counts on all fins, body color found to be dark brown with blotches on dorsal fin, increased colonization rate of Champsodon in the Mediterranean sea, water circulation pattern and ambient temperature of sea being responsible for increased growth of the fish.