1. A fish that lives in saltwater environments, typically found in oceans and seas
Salmon and cod are common marine fish species.
O salmão e o bacalhau são espécies de peixe marinho comuns.
2. Fish adapted to life in marine ecosystems with salt content
Marine fish have developed special adaptations to cope with saltwater.
Os peixes marinhos desenvolveram adaptações especiais para lidar com água salgada.