The species is threatened by direct human competition for fish stocks resulting in the depletion of fish, the eagle’s food. Soil erosion results in continued loss of nesting and feeding habitat for the species. In addition, unsustainable harvesting of Rhizophora mucronata and Ceriops tagal trees and the presence of an invasive worm species (not yet identified) are also a threat to the eagle nesting on the mangrove. Water pollution is a potential threat given the species’ dependence on fish and the tendency of pollutants to accumulate in prey tissues. Overfishing
About ten pairs are monitored in the park, most of which are found in the mangroves. For this, a strict control of fishing has been put in place with a regular monitoring of fish caught by fishermen. Membership cards for fishermen have been put in place in order to control fishermen in respecting the quotas of fish caught and also to limit harvesting and disturbance at the eagle niches. This is particularly done for the management of fisheries around Nosy Hara National Park. In addition, a women’s association is very active in restoring mangroves and in raising community awareness for the protection of the species’ habitat.
