Marimo Moss Ball
Scientific Name: Aegagropila linnaei
Category: plant
Brief Description
A slow-growing spherical green algae that forms velvety, dark green balls in freshwater lakes.
Characteristics
Velvety texture, spherical shape formed by densely packed green filamentous algae, grows slowly by adding layers.
Habitat
Cold, shaded freshwater lakes and streams attached to rocks, often rolled by gentle wave action.
When to Find It
N/A
Conservation Status
Vulnerable in native habitats due to over-collection and water pollution, though widely cultivated.
Ecological Role
Provides micro-habitats for small aquatic organisms and contributes to primary production in freshwater ecosystems.
Easily Confused With
Other filamentous algae or artificial moss decorations; distinguished by its true velvety, multicellular spherical structure.
Observation Tips
Keep in cool, indirect light with clean freshwater; gently roll during water changes to maintain shape.
Interesting Facts
Marimo balls can live for over 100 years and are considered treasures of Lake Akan in Japan, where annual festivals are held in their honor.