Meriruohikot

Meriruohikot, also known as seagrasses, are a diverse group of flowering plants that have adapted to live in marine environments. These submerged plants typically grow in shallow coastal waters, estuaries, and bays around the world. Despite their name, they are not algae but true vascular plants, possessing roots, stems, and leaves.

The morphology of meriruohikot varies considerably between species. Some have long, ribbon-like leaves, while others have more delicate, fan-shaped foliage. Their root systems anchor them to the substrate, which can range from soft mud to sandy or rocky bottoms. This anchoring is crucial for preventing erosion and stabilizing coastlines.

Meriruohikot play a vital ecological role. They form extensive underwater meadows that provide essential habitat and food for a wide array of marine life, including fish, sea turtles, manatees, and invertebrates. These meadows are nurseries for many commercially important fish species. Furthermore, they contribute to water clarity by trapping sediment and absorbing excess nutrients, which helps to prevent algal blooms.

The health of meriruohikot ecosystems is sensitive to environmental changes. Pollution, coastal development, dredging, and climate change, particularly rising sea temperatures and ocean acidification, pose significant threats to their survival. Conservation efforts are underway globally to protect and restore these valuable marine habitats.