Nekton or necton (from the Ancient Greek: νηκτόν, romanized: nekton, lit. 'to swim') is any aquatic organism that can actively and persistently propel itself through a water column (i.e. swimming) without touching the bottom.

Feb 17, 2023 · Nektons are marine organisms that can swim and move independently of moving water. Apart from some mollusks and crustaceans, most nektons are vertebrates. Some examples of nektonic organisms are whales, fish, reptiles, and birds. They live at all depths of the ocean. Most live closer to the surface due to the presence of food.

Nekton, the assemblage of pelagic animals that swim freely, independent of water motion or wind. Only three phyla are represented by adult forms. Chordate nekton include numerous species of bony fishes, the cartilaginous fishes such as the sharks, …

Oct 11, 2017 · Plankton and nekton are two types of marine aquatic organisms. The main difference between plankton and nekton is that plankton are passive swimmers that are carried by the water currents whereas nekton are actively-swimming organisms that swim against the …

Nekton refers to living organisms in the Earth's water bodies that can swim independently of currents, such as fish, squid, octopus, sharks, and marine mammals. They are typically found in the water column but can also live close to the ocean floor.

Nekton are aquatic animals that swim or move freely in the water. Their movement is generally not controlled by waves and currents. Nekton include fish, squid, marine mammals, and marine reptiles. They live in the sea, lakes, rivers, ponds, and other bodies of water.

Nov 21, 2023 · A nekton is a group of water or marine organisms that travel together freely. These organisms can be fish, crustaceans or mollusks that live in an ocean or a lake.

Feb 25, 2025 · Nekton is a community of swimming organisms that are large enough to win the main oceanic currents. The large size is the result of long-dimensional growth in their life histories, but this also means that nekton hosts individuals who have been plankton in their early life stages (as eggs or larvae).

There are three types of nekton. The largest group of nekton are chordates and have bones or cartilage. This group includes bony fish, whales, sharks, turtles, snakes, eels, porpoises, dolphins and seals. Molluscan nekton are animals like octopus and …

Jun 25, 2024 · Nekton are free-swimming fishes and crustaceans that are vital signs of salt marsh health, along with tidal wetland elevation and vegetation. Abundant and integral to the ecosystem food web, nekton tell us about primary producers, consumers, top …