#IMC: September 14 - 18 2025

Study of the diversity and distribution of marine Seagrass in the south-west of Madagascar

Assigned Session: FS 3.237: Open Poster Session

Abstract ID: 3.5151 | Accepted as Poster | Poster | TBA | TBA

Filantsoa Lambo (0)
Lahitsiresy Max, Gasimandova (1)
Filantsoa Lambo ((0) Action for Community and Biodiversity, 52F011 Andaboly, 601, Toliara, Madagascar, MG)
Lahitsiresy Max, Gasimandova (1)

(0) Action for Community and Biodiversity, 52F011 Andaboly, 601, Toliara, Madagascar, MG
(1) Doctor in marine science, Toliara 601, Madagascar

(1) Doctor in marine science, Toliara 601, Madagascar

Categories: Biodiversity, Conservation, Ecosystems, Monitoring, Sustainable Development
Keywords: Seagrass, Diversity, Distribution

Categories: Biodiversity, Conservation, Ecosystems, Monitoring, Sustainable Development
Keywords: Seagrass, Diversity, Distribution

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This work concerns the diversity and distribution of species of Seagrass in Ranobe Bay, south-west region Madagascar. The observation and identification of the species encountered at each site and station have enabled us to classify 7 species, including 6 in the Cymodoceaceae family and 1 in the Hydrocharitaceae family. They are distributed over 9 station located at site I, II and III and their distribution variés very little from one site to another. The study on the estimation of the percentage of cover between the surveyed stations and between sites does not show any significant différence overall. These facts testify the similarity of the sites in terms of ecological conditions. The bionomic classification according to the species caractérisation of the stands showed that the tolerant species are represented by Thalassia hemprichii and Cymodocea serrulata; the other species, including Halodule uninervis, are represented by Cymodocea serrulata and Thalassia hemprichii ; other species, including Halodule uninervis, Halodule wrightii, Syringodium isoetifolium, Cymodocea rotundata and Thalassodendron ciliatum are species with no apparent characteristics.

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