|Central coordinates||48o 46.00' East 13o 7.00' South|
|IBA criteria||A1, A2, A3, A4i|
|Altitude||5 - 10m|
|Year of IBA assessment||2001|
Site description This site consists of a strip of mangrove located along the western coast and stretching over 90 km between Antsatsaka (25 km north of Ambanja) in the south, and Bobasakoa (45 km north-west of Ambilobe) in the north. Ambaro Bay lies off its southern part. Ampasinantenina (Port Saint Louis) peninsula divides the site into two parts, where the city of Antsohimbondrona is directly linked to Ambilobe by a tar road 30 km long. In addition to the mangrove, this site includes mudflats (1 km wide at low tide), lakes and saltmarshes. The main rivers in the area, the Bobasakoa, Andranomandevy, Mananjeba, Mahavavy, Itasy and Ambazoana, flow from north to south into the Mozambique Channel. Several of them (some nutrient-poor) rise from the underground waters of the Ankarana massif. The mangrove woodland is mainly composed of Avicennia and Rhizophora trees (5–10 m high).
Key Biodiversity See Box and Tables 2 and 3 for key species. Forty-eight species are known from the site, of which seven are endemic to Madagascar. The site supports the largest congregations of Dromas ardeola and Sterna saundersi known in Madagascar.
|Species||Season||Period||Population estimate||Quality of estimate||IBA Criteria||IUCN Category|
|Madagascar Teal Anas bernieri||resident||1999||present||-||A1, A2, A3||Endangered|
|Madagascar Heron Ardea humbloti||resident||1999||present||-||A1, A2, A3||Endangered|
|Madagascar Fish-eagle Haliaeetus vociferoides||resident||1999||present||-||A1, A2, A3||Critically Endangered|
|Crab-plover Dromas ardeola||winter||1999||900 individuals||-||A4i||Least Concern|
|Lesser Crested Tern Thalasseus bengalensis||winter||1999||350 individuals||-||A4i||Least Concern|
|Saunders's Tern Sternula saundersi||winter||1999||236 individuals||-||A4i||Least Concern|
|Sickle-billed Vanga Falculea palliata||resident||1999||present||-||A3||Least Concern|
|Land-use||Extent (% of site)|
|Notes: Collection of eggs and young of breeding birds.|
References Durand et al. (1966).
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Recommended citation BirdLife International (2015) Important Bird Areas factsheet: Ambavanankarana wetlands. Downloaded from http://www.birdlife.org on 28/04/2015
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