Definition

1. Noun:
   • The aggregate of actively swimming animals in a body of water: This term refers to the collective group of aquatic animals that are capable of swimming independently against a current, as opposed to being passively carried by it. This group ranges from microscopic organisms to large animals like whales.

Examples of Usage

• Noun:
  • Marine biologists study the distribution of nekton in the open ocean.
  • The nekton community in this region includes fish, squid, and marine mammals.
  • Changes in water temperature can significantly affect the migration patterns of nekton.

Advanced Usage

• "Nektonic" (adjective): Describing organisms that are part of the nekton or their characteristics.
  • Nektonic species, such as tuna, have powerful muscles for sustained swimming.
• "Nekton biomass": A scientific term referring to the total mass of actively swimming organisms in a given area or volume of water.
  • The survey aimed to estimate the nekton biomass in the coastal ecosystem.

Variants and Related Words

• Plankton (noun): The passively floating or drifting organisms in a body of water, which are carried by currents, as opposed to actively swimming nekton.
• Benthos (noun): The community of organisms living on or in the bottom of a body of water.
• Pelagic (adjective): Relating to the open sea, away from the coast and the sea floor. Nekton are a key component of the pelagic zone.

Synonyms

• Swimming organisms: A general descriptive term.
• Active swimmers: Emphasizes the ability to move independently of currents.

Notes on Meaning

• Nekton vs. Plankton: This is a fundamental distinction in aquatic ecology. "Nekton" refers to strong swimmers (e.g., fish, whales), while "plankton" refers to weak swimmers or drifters (e.g., algae, jellyfish, many larval stages).
• Scope: The term is collective and scientific. It is not typically used to refer to a single animal but to the entire community or group of such animals in an ecosystem.

Noun

1. the aggregate of actively swimming animals in a body of water ranging from microscopic organisms to whales