Prawns are omnivorous, and in the wild they eat a variety of food, including plankton, carrion and other microorganisms. Their diet also consists of detritus, or fragments of decaying organic matter, small shellfish and worms.
Prawns are crustaceans and have a diet similar to that of other crustaceans. Newly born prawns eat modestly and often feed on plankton that live near the surface of the water. They also eat small marine plants and can eat seaweed, as long as it's small enough for them to eat. Prawns grow quickly after their first year, and this is when they can swim to search for a variety of food. As natural scavengers, they aren't picky eaters and consume almost anything that's small enough to eat, including mud, sand, dead fish and crabs. Prawns are among the rare type of animals that prey on their own kind to survive, especially if there's a scarcity of food in their natural habitat.
King prawns are sensitive to light and only hunt at night. Tiger prawns are active day and night. Both prawns are highly popular as a seafood delicacy and are often farmed in ponds near the sea. Cold-water prawns are deepwater crustaceans and don't eat mud and sand, which is why they have clearer veins than the warm-water king and tiger prawns.Learn More
Crayfish are omnivorous, which means they feed on plant life and animals. These crustaceans are also known to be scavengers, so they will also eat dead animals.Full Answer >
Plankton can be producers, consumers or recyclers, depending on which trophic level they belong to. All plankton are classified as one of three types: phytoplankton, zooplankton and bacterioplankton.Full Answer >
The predators of plankton include whales, sharks and many different types of invertebrates. Many species of plankton feed on other types of plankton, sometimes even cannibalizing their own species.Full Answer >
Plankton consist of very tiny organisms located in marine and freshwater environments, according to the Encyclopedia of the Earth. The three very broad essential types of plankton are phytoplankton, zooplankton and bacterioplankton. These organisms frequently represent the bottom of the food chain in aquatic environments and are key to maintaining ecological balance.Full Answer >