Zostera

Description

Zostera is a genus of marine grass commonly known as eelgrass. It is found in shallow coastal waters around the world and plays a crucial role in the health of these ecosystems. Eelgrass provides food and shelter for a variety of marine organisms, stabilizes sediment, and improves water quality by absorbing nutrients and pollutants.

Taxonomic Information

Appearance

Eelgrass has long, narrow leaves that can grow up to 3 feet in length. The leaves are typically green but can also have a brown or reddish tint. The plant produces small flowers that are pollinated by the wind. The flowers give way to small, oblong fruits that contain one or two seeds.

Care Guide

Eelgrass requires a specific set of conditions to thrive in a home aquarium. It needs clean, clear water with a consistent temperature between 50°F and 70°F. The pH should be between 7.5 and 8.5, and the salinity should be between 30 and 35 parts per thousand. Eelgrass also requires a lot of light, so it should be placed in a tank with bright, direct lighting. Fertilization is not necessary, as eelgrass obtains its nutrients from the water.

Common Pests & Diseases

Eelgrass is susceptible to a variety of pests and diseases, including fungal infections, bacterial infections, and grazing by herbivorous animals. Overfishing and pollution can also have a negative impact on eelgrass populations.

Habitat

Eelgrass is found in shallow coastal waters around the world, from the Arctic to the tropics. It can grow in both sandy and muddy substrates and is often found in estuaries and bays. Eelgrass is an important component of these ecosystems, providing food and shelter for a variety of marine organisms and helping to stabilize sediment.

Question and Answer

Q: Can eelgrass be grown in a home aquarium?

A: Yes, eelgrass can be grown in a home aquarium under the right conditions.

Q: What animals rely on eelgrass for food?

A: Many species of fish and invertebrates rely on eelgrass for food, including sea turtles, manatees, and seahorses.

Q: How does eelgrass improve water quality?

A: Eelgrass absorbs excess nutrients and pollutants from the water, which improves water quality and clarity.

Q: Why is eelgrass important to coastal ecosystems?

A: Eelgrass provides food and shelter for a variety of marine organisms, stabilizes sediment, and improves water quality.

Related Plants

• Phyllospadix
• Halodule
• Posidonia
• Thalassia

References

• Orth, R. J., et al. “Eelgrass (Zostera marina L.) in the Chesapeake Bay Region of Mid-Atlantic Coast of the USA: Challenges in Conservation and Restoration.” Estuaries and Coasts, vol. 36, no. 1, 2013, pp. 1-7.
• Short, F. T., et al. “Zostera: Biology, Ecology, and Management.” Springer, 2001.
• U.S. Fish and Wildlife Service. “Zostera marina.” U.S. Fish and Wildlife Service, 2011.