The Mananara-Nord Biosphere Reserve is located on the north-east coast of the island and covers an area of 140,000 hectares.

Madagascar has an extremely rich biodiversity with more than 85 percent of its species being endemic.

Declaration Date : 1990
Surface Area : 140,000 ha
Administrative Division : District of Mananara; 7 communes involved: Antanambe, Imorona, Mananara, Antanananivo, Sandrakatsy, Ambatoharanana, Antanambaobe

Marine ecosystem:

• Marine meadows: 32 species of algae
• Reef: 132 species of corals, 64 species of shellfish, 16species of anthropoids, 34 species of Echinoderms, 179 species of fish, 2 species of turtles, 2 species of mammals

Coastal ecosystem:

• Mangrove: 7 species of mangroves
• Forest isle: (riperian forest) 98 species of plants Terrestrial ecosystem
• Dense, low altitude humid forest: 3 endemic palm species Dypsis antanamensis, Dypsis ramentacea, Dypsis anovensis
• 12 species of lemurs
• 1200 species of plants

• Traditional fisheries (coral lagoons; destruction of coral by removal or trampling)
• Felling of mangroves
• Roving agriculture, slash and burn cultural practices: felling and burning of understory « tavy ».

National Terrestrial, Marine and Coastal Park.