Seagrass Meadows: Vital Underwater Homes for Marine Life
Seagrass meadows are underwater grasslands made of flowering plants.
These plants grow fully submerged in shallow coastal waters.
They have roots, leaves, flowers, and seeds, unlike seaweed.
Seagrass meadows support rich marine life.
They act as nurseries for young fish, crabs, and prawns.
Juvenile fish hide among the blades and grow safely.
Later, many of these fish move to deeper waters and support fisheries.
Dugongs and green sea turtles graze directly on seagrass leaves.
Seahorses and pipefish cling to the blades for shelter.
Sharks, stingrays, and larger fish hunt for prey in these meadows.
One acre can support tens of thousands of fish and millions of invertebrates.
The dense leaves slow water flow and trap sediment.
This action improves water clarity and stabilizes the seafloor.
Meadows also filter nutrients and reduce harmful bacteria in coastal waters.
Seagrass stores large amounts of “blue carbon” in its sediments.
These meadows cover only a tiny fraction of the ocean floor yet hold a significant share of ocean carbon.
They also release oxygen and help protect nearby coral reefs.
In India, seagrass meadows occur in the Gulf of Mannar, Lakshadweep, and Andaman & Nicobar islands.
These areas support dugongs and many fish species important to local fishing communities.
However, seagrass meadows face threats from coastal development, pollution, and extreme weather.
Protecting them helps maintain healthy fisheries and ocean biodiversity.
Healthy seagrass meadows keep coastal waters clearer and support more marine life.