Close Up Of A Spotted Gar Fish In Clear Water At Umino-Mori Aquarium, Sendai, Japan

gar lepisosteus oculatus lepisosteus lepisosteiformes lepisosteidae fish spotted gar oculatus species actinopterygii aquatic freshwater aquarium fish tank uminomori aquarium habitat animal mouth underwater wildlife closeup sea fauna swim one close up environment sendai japan high levels of mercury spotted elongated bony scale wild marine scale natural water clear fresh cancer risk bony nature uminomori exotic behavior tropical life