Written by the Fiveable Content Team • Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 exam•Written by the Fiveable Content Team • Last updated September 2025
Definition
The littoral zone refers to the shallow area of a body of water, such as a lake or pond, where sunlight reaches the bottom and supports plant growth. It is the zone closest to the shore.
Related terms
Limnetic Zone: This term refers to the open water area beyond the littoral zone, where sunlight penetrates but plants cannot grow due to its depth.
Profundal Zone: The profundal zone is located below both the littoral and limnetic zones. It is deeper and receives no sunlight, making it dark and devoid of plant life.