Mangroves are considered the nurseries of the sea

Many ocean species nest or give birth in mangroves, including manatees, seabirds, sharks, corals, shellfish, crustaceans, and countless types of fish. Baby sea animals grow up sheltered by the mangroves until they’re ready to venture out to the reefs or deep ocean. Because they’re home to so many species’ babies, mangroves are considered the nurseries of the sea and one of the biggest contributors to the ocean’s biodiversity.

These plants are also intricately tied to the sustainability of our fisheries and global food security. A lot of the seafood we eat, like grouper, redfish, snapper, and shellfish, start life among mangroves. Many of the world’s fish catches are either directly or indirectly dependent on mangrove forests for survival.

Mangroves prevent erosion while protecting coastal communities and coral reefs

Mangroves have a dense root system that traps sediment flowing downriver and off land. The buildup of this sediment acts as a natural breakwater, helping to stabilize entire coastlines and prevent erosion caused by tides and storms. However, their well-developed “trap” system means they’ve also become a repository for plastic and trash flowing from land-based sources. Once tangled in the roots, plastic cannot escape. It becomes more tightly packed with each tidal cycle, displacing nests and baby sea animals that rely on their shelter to survive.

Mangroves also protect homes, property, and infrastructure from flooding caused by strong storms. It’s estimated that the presence of mangroves reduces wave heights by as much as 50 percent. Coastal damage caused by large storms like hurricanes and typhoons are more severe in areas where mangroves have been cleared. Entire mangrove forests are being cut down to build communities that can be, and have been, completely washed away without their protection.

Mangroves even protect coral reefs and seagrass beds, other critical ecosystems, from being smothered in sediment. Coral reefs are another barrier against waves and currents that would otherwise erode the shoreline. When they are destroyed, stronger waves and currents reach the coast.

Mangroves are great natural filters and serve as powerful carbon sinks
  • Mangroves help regulate the climate and counteract the effects of global warming
  • They are a special species of plant because their impressive filtration system allows them to filter out excess salt water
  • The carbon dioxide they remove from the atmosphere is sequestered, or stored in their wood, roots, and the surrounding soil, for thousands of years
  • They can sequester up to 10X more carbon than any land-based forests and they don’t emit nearly as much methane because of their saline-rich soils
  • Clearing mangroves releases massive amounts of this stored carbon dioxide and contributes to climate change globally
  • Preventing mangrove loss and restoring mangrove forests are both excellent ways to mitigate the effects of global warming
Mangroves support human life, wellness, and culture
  • Fisheries supported by the mangrove ecosystem provide global food security, especially for some of the most vulnerable communities
  • In some parts of the world, aquaculture is the biggest driver of mangrove loss
  • They create a habitat where many other food products are grown and harvested
  • Their wood is resistant to both rot and insects, which makes it an ideal construction material and source of fuel for coastal and indigenous communities
  • Mangroves support a vibrant tourism industry that provides a livelihood for many locals
  • It’s estimated that a mangrove ecosystem is worth $33K to $57K per hectare per year
  • Much less tangible but no less valuable, mangroves are also a wellspring of aesthetic beauty, culture, spirituality, and recreation in coastal communities around the world
We’re partnering with Conservation International to protect mangroves and other critical estuary habitats

This month, we’re partnering with Conservation International, a member of the Global Mangrove Alliance, to offer the green and tan Marine Nursery Bracelet. Each bracelet purchased pulls a pound of trash from the ocean and coastlines and helps protect estuaries and mangroves, the nurseries of the sea.

In partnership with

  • Represents one pound of trash you've removed from the ocean and coastlines.
  • Beads are made with recycled glass.
  • Cord is made with recycled
    water bottles.
  • GRS Icon
  • Unisex design.
  • Adjustable from 2-5" in diameter.
  • 100% waterproof.
  • GreenCircle has certified that this bracelet is made with ocean plastic recovered by 4ocean employees.

By purchasing this bracelet, you will remove one pound of trash from the ocean and coastlines as well as help protect marine nurseries.


  • Represents one pound of trash you've removed from the ocean and coastlines.
  • Beads are made with recycled glass.
  • Cord is made with recycled
    water bottles.
  • GRS Icon
By purchasing a Marine Nursery Bracelet, you help make it possible for us to support Conservation International’s conservation efforts.