Aquatic animals have evolved a variety of different feeding mechanisms to minimize the risk that, due to the density of water is, when a predator lunges at a prey item, the resulting turbulence may push the prey out of the predator’s reach.
Suction-feeding is used to draw the prey and the surrounding water into the mouth, like groupers and bass on earth.
Some marine creature have extendible jaws can dart forward to grab prey without producing appreciable turbulence. Like the sling jaw wrasse, goblin sharks, and dragonfly larvae on earth.
Planktonivore diet Edit
Creatures with a planktonivore diet generellay only need to go through clouds of plankton and trying to get the more at once to get all the nutrition they need, like Ptilopods.