The Great Egret is a common species seen in the lagoons of Mar Negro. They feed on a variety of invertebrates that inhabit these areas. Jobos Bay, Puerto Rico 507. Fish sustain a local fishing economy and contribute to the diversity of life on the reef. Jobos Bay, Puerto Rico 508.
Manatees live in estuarine waters.
Sea grass meadows provide shelter and habitat. Jobos Bay, Puerto Rico 509. Fiddler crabs inhabit mudflats. They help provide nutrients and oxygen to the soil with their constant burrowing in the sediments. Jobos Bay, Puerto Rico 510.