Nekton are animals that move or swim freely in the ocean. They can live in shallow or deep water and are all shapes and sizes. Dolphins are part of the chordates group of nekton.
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Yes, dolphins are considered nekton. Nekton are organisms that are capable of swimming actively in the water column, regardless of the direction of water flow. Dolphins are highly efficient swimmers and can actively move through the water to hunt and navigate.
Nekton includes all animals that are large enough to swim independent of the ocean current. Sharks can swim independently of currents. So yes, sharks are nekton.
Nekton, which includes fish, squid, and marine mammals, are eaten by predators such as sharks, dolphins, large fish like tuna and marlin, and seabirds like albatrosses. These predators rely on nekton as a food source to sustain their energy and survival in the marine ecosystem.
Some animals that belong to the nekton include fish, marine mammals (like dolphins and whales), and some species of sharks. These animals are considered nektonic because they are capable of swimming against ocean currents.
Plants.
Dolphins are at a higher trophic level than plankton. Dolphins are consumers that feed on other organisms, while plankton are primary producers that form the base of the marine food chain.
Dolphins jump out of the water and spin as a form of play, communication, and social interaction with other dolphins.