A large yellow Estuary Catfish digs through the sand using its mouth and gills as a filter while searching for food on the bottom of the ocean

cnidoglanis macrocephalus estuary catfish sea bed underwater video marine animals barbels scuba antennarius striatus marine biology small fish catfish ocean conservation reef underwater underwater photo fin spines nature animals yellow pattern scuba diver foraging bottom feeders habitat seahorse marine park animal interactions ecosystems threatened seaweed prey aquarium sea grass gills enviromental suction catch pacific ocean detect food eco ocean climate change worm aquatic plants panful sand weedy areas filter poison spikes cobbler plants