Sargassum

Definition

Sargassum is a genus of brown macroalgae found in marine environments, particularly in the Atlantic Ocean. It forms large floating mats that provide habitat and breeding grounds for various marine species.

5 Must Know Facts For Your Next Test

1. Sargassum is primarily found in the Sargasso Sea, named after this algae.
2. It serves as a crucial habitat for juvenile fish, shrimp, crabs, and other marine organisms.
3. Sargassum blooms can be driven by nutrient influx from agricultural runoff and coastal upwelling.
4. These algae play a significant role in carbon sequestration by absorbing CO2 during photosynthesis.
5. Massive Sargassum blooms can negatively impact tourism and local fisheries by washing ashore in large quantities.

Review Questions

• What ecological role does Sargassum play in marine environments?
• How do nutrient influxes contribute to Sargassum blooms?
• What are some negative impacts of massive Sargassum blooms on coastal communities?

Related terms

Phytoplankton:

Microscopic marine algae that form the base of aquatic food webs through photosynthesis.

Marine Biome: An aquatic biome consisting of saltwater habitats like oceans, coral reefs, and estuaries.

Eutrophication:

The process where water bodies become enriched with nutrients, often leading to excessive growth of algae and depletion of oxygen levels.