Written by the Fiveable Content Team • Last updated September 2025
Written by the Fiveable Content Team • Last updated September 2025
Definition
Aquatic biomes are ecosystems found in water environments, including both freshwater and marine systems. They are characterized by factors such as salinity, depth, and the flow of water.
5 Must Know Facts For Your Next Test
Aquatic biomes are divided into freshwater and marine categories.
Freshwater biomes include lakes, rivers, streams, and wetlands.
Marine biomes cover about 75% of Earth's surface and include oceans, coral reefs, and estuaries.
Salinity levels significantly influence the types of organisms that can live in aquatic biomes.
Aquatic biomes play a crucial role in global nutrient cycles and climate regulation.
Review Questions
Related terms
Freshwater Biome: Ecosystems with low salt concentration like lakes, rivers, streams, and wetlands.
Marine Biome: Ecosystems with high salt concentration including oceans, coral reefs, and estuaries.
Estuary: A coastal area where freshwater from rivers meets and mixes with saltwater from the ocean.