A large yellow Estuary Catfish filters sand through its mouth and gills as it searches for food on the bottom of the ocean

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