blue spotted mudskipper fish or amphibious fish boleophthalmus boddarti walking on low tide muddy river bank at parit java, muar

abstract amphibious animal bank barbarus beach biology blue boddarti boleophthalmus cement climbing closeup concrete detail dirty ecology fins fish fishing giant gray grunge java low malaysia mangrove muar mud muddy mudflat mudskipper natural nature outdoor parit pattern periophthalmodon periophthalmus river rough sea spot spotted surface swamp texture textured tide tropical walking water wet wetland wild wildlife