Filter feeder lure plankton or small fish into its mouth. The basking shark is a passive filter feeder, filtering zooplankton, small fish, and invertebrates from up to 2,000 tons of water per hour. Unlike the megamouth and whale sharks, the basking shark does not appear to actively seek its quarry; but it does possess large olfactory bulbs that may guide it in the right direction. Unlike the other large filter feeders, it relies only on the water that is pushed through the gills by swimming; the megamouth shark and whale shark can suck or pump water through their gills. Manta rays can
Fish decoy then “swim” or "dangle" the decoy to attract a fish in close enough to spear. Another form of decoy that is sometimes used is called a “floater”. This type of fish decoy is not weighted, but is attached to a weight that holds the decoy at the desired depth. There are other fish decoys which have one or more hooks attached. In Minnesota, and some other states, these decoys are illegal and are referred to as "cheaters". In Michigan, a hooked decoy is legal and is simply counted as one of the number of lines that each angler is allowed