Definition

Noun: * The relatively shallow, sunlit region of the ocean that extends from the low tide mark out to the edge of the continental shelf, typically to a depth of about 200 meters (approximately 100 fathoms). It is characterized by abundant sunlight, nutrient-rich waters, and high biological productivity.

Usage

The term is used in marine biology, oceanography, and ecology to describe a specific, biologically critical marine environment. * It is a scientific and technical term. * It is often contrasted with the deeper oceanic zone. * It describes the habitat for a vast majority of the world's commercial fisheries.

Examples

• Coral reefs and kelp forests are typically found within the neritic zone.
• The high productivity of the neritic zone supports a diverse food web, from plankton to large fish.
• Oceanographers study the nutrient cycles in the neritic zone.

Advanced Usage

• As a modifier: The term can be used adjectivally to describe organisms or processes characteristic of this region (e.g., species, sediments).
• "Neritic province": A synonymous term sometimes used in ecological classification.

Variants and Related Words

• Neritic (adjective): Of or relating to the neritic zone.
  • Example: Neritic plankton are adapted to the variable conditions of coastal waters.
• Oceanic zone: The deep, open ocean beyond the neritic zone.
• Pelagic zone: The entire water column of the ocean, which includes both the neritic and oceanic zones.
• Benthic zone: The ocean floor, which has a shallow section within the neritic zone.

Synonyms

• Coastal ocean
• Sublittoral zone
• Continental shelf waters

Related Phrases/Concepts

• Photic zone: The sunlit upper layer of a body of water. The neritic zone largely overlaps with the photic zone.
• Continental shelf: The gently sloping, submerged extension of a continent. The neritic zone corresponds to the waters overlying the continental shelf.

Noun

1. the ocean waters from the low tide mark to a depth of about 100 fathoms