| Titre : |
Corals of northeast Madagascar |
| Type de document : |
texte imprimé |
| Auteurs : |
David Obura, Auteur |
| Editeur : |
Conservation International |
| Année de publication : |
2011 |
| Importance : |
p 17-28 |
| Langues : |
Anglais (eng) |
| Catégories : |
SCIENCES DE LA MER
|
| Mots-clés : |
CORAIL MADAGASCAR GENETIQUE DES CORAUX ETUDE DES CORAUX |
| Résumé : |
Northeast and Northwest Madagascar have similar levels of coral diversity, the highest recorded in the Western Indian Ocean. This survey recorded 281 species of corals, with lower taxonomic effort than earlier surveys that recorded 323 species of corals in Northwest Madagascar.
At a regional scale, this coral diversity is equivalent to sites in N Mozambique and S Tanzania, defining a triangle of maximum diversity in the western Indian Ocean, encompassing the northern Mozambique channel.
Sites in Northeast Madagascar host some of the largest populations of the most evolutionarily distinct and ecologically rare monospecific genera in the Indian Ocean, including Craterastrea laevis, Anomastrea irregularis, Horastrea indica and Gyromsilia interrupta. Significant range extensions of Indonesian species are reported in this survey, of Anacropora pillai and Turbinaria irregularis (previously recorded in Northwest Madagascar). A recently described rare species , Psammocora albopicta was found here, as well as a potentially undescribed species of Echinopora.
Two of the five locations, Ambodivahibe and Loky Bay, have the highest level of diversity among the locations surveyed due to their depth and structural complexity, so have the highest value for habitat and species conservation. However individual sites in all 5 locations were important for some of the above key species, suggesting broad-based conservation. |
| Numéro du document : |
A 10359/MAR 22 |
| Niveau Bibliographique : |
2 |
| Bull1 (Theme principale) : |
GESTION DE L'ENVIRONNEMENT MARIN |
| Bull2 (Theme secondaire) : |
GESTION DES RESSOURCES MARINES |
Corals of northeast Madagascar [texte imprimé] / David Obura, Auteur . - Conservation International, 2011 . - p 17-28. Langues : Anglais ( eng)
| Catégories : |
SCIENCES DE LA MER
|
| Mots-clés : |
CORAIL MADAGASCAR GENETIQUE DES CORAUX ETUDE DES CORAUX |
| Résumé : |
Northeast and Northwest Madagascar have similar levels of coral diversity, the highest recorded in the Western Indian Ocean. This survey recorded 281 species of corals, with lower taxonomic effort than earlier surveys that recorded 323 species of corals in Northwest Madagascar.
At a regional scale, this coral diversity is equivalent to sites in N Mozambique and S Tanzania, defining a triangle of maximum diversity in the western Indian Ocean, encompassing the northern Mozambique channel.
Sites in Northeast Madagascar host some of the largest populations of the most evolutionarily distinct and ecologically rare monospecific genera in the Indian Ocean, including Craterastrea laevis, Anomastrea irregularis, Horastrea indica and Gyromsilia interrupta. Significant range extensions of Indonesian species are reported in this survey, of Anacropora pillai and Turbinaria irregularis (previously recorded in Northwest Madagascar). A recently described rare species , Psammocora albopicta was found here, as well as a potentially undescribed species of Echinopora.
Two of the five locations, Ambodivahibe and Loky Bay, have the highest level of diversity among the locations surveyed due to their depth and structural complexity, so have the highest value for habitat and species conservation. However individual sites in all 5 locations were important for some of the above key species, suggesting broad-based conservation. |
| Numéro du document : |
A 10359/MAR 22 |
| Niveau Bibliographique : |
2 |
| Bull1 (Theme principale) : |
GESTION DE L'ENVIRONNEMENT MARIN |
| Bull2 (Theme secondaire) : |
GESTION DES RESSOURCES MARINES |
|
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