Seagrass Protection

 

In recent years Lac’s seagrass has come under threat from increasing recreational use. In 2008, the seagrass beds in front of the windsurfing centers moved into a significantly rapid decline in size and density as a result of trampling by waders and scarring by windsurf equipment.

 

 

In response, STCB and Progressive Environmental Solutions formed a project partnership with the support and oversight of STINAPA Bonaire. The project is a series of simple measures to reduce the impact of recreational use on Lac’s fragile ecosystems:

 

  1. Floating line and small floats were installed to protect the seagrass beds in the heavily-used areas at the Sorobon peninsula.
  2. Large buoys were placed parallel to the inside of the coral reef. Users are instructed to use caution in this area and reminded that the reef is a “no touch” zone. The buoys are also designated moorings for kayaks.
  3. Prominent signs placed at the two windsurf centers inform users of regulations and describe the value of Lac’s ecosystems and its wild inhabitants.

 

 

 

Installation of seagrass protection - photo STCB

The shallow bay of Lac located on Bonaire's wild east coast - photo Kevin Favreau

 

Bonaire’s Lac, the largest lagoon in the Netherlands Antilles, is an ecosystem so rich and valuable that it is protected under treaty as a Ramsar Wetland of International Significance. Lac contains Bonaire’s only significant mangrove and seagrass ecosystems and is a center of historical and cultural value.

STCB’s research has revealed that young sea turtles foraging in Lac grow an average of 8 centimeters (3 inches) per year, compared to an average of 3 centimeters (1.2 inches) per year in the wider Caribbean region.

Why this remarkable difference in growth rates? We don’t know, but we’re beginning to collect data which may lead to the answer. 

 

What’s So Special About Seagrass?

Lac’s seagrass beds slow water flow and trap sediment, which keep the lagoon’s water clean and clear.

Seagrass roots hold sand in place, preventing erosion. Seagrass leaves produce oxygen and provide shelter for a complex community of plants and animals, and food for two globally endangered species; green turtles and queen conch.

Without seagrass, Lac’s sand would wash away, its clear water would become murky, and its abundant and diverse marine community would deteriorate.