Publications des scientifiques de l'IRD

Ampou E. E., Ouillon Sylvain, Iovan Corina, Andréfouët Serge. (2018). Change detection of Bunaken Island coral reefs using 15 years of very high resolution satellite images : a kaleidoscope of habitat trajectories. In : Indonesia seas management. Marine Pollution Bulletin, 131 Part B (No spécial), p. 83-95. ISSN 0025-326X.

Titre du document
Change detection of Bunaken Island coral reefs using 15 years of very high resolution satellite images : a kaleidoscope of habitat trajectories
Année de publication
2018
Type de document
Article référencé dans le Web of Science WOS:000438323100009
Auteurs
Ampou E. E., Ouillon Sylvain, Iovan Corina, Andréfouët Serge
In
Indonesia seas management
Source
Marine Pollution Bulletin, 2018, 131 Part B (No spécial), p. 83-95 ISSN 0025-326X
In Bunaken Island (Indonesia), a time-series of very high resolution (2-4 m) satellite imagery was used to draw the long-term dynamics of shallow reef flat habitats from 2001 to 2015. Lack of historical georeferenced ground-truth data oriented the analysis towards a scenario-approach based on the monitoring of selected unambiguously-changing habitat polygons characterized in situ in 2014 and 2015. Eight representative scenarios (coral colonization, coral loss, coral stability, and sand colonization by seagrass) were identified. All occurred simultaneously in close vicinity, precluding the identification of a single general cause of changes that could have affected the whole reef. Likely, very fine differences in reef topography, exposure to wind/wave and sea level variations were responsible for the variety of trajectories. While trajectories of reef habitats is a way to measure resilience and coral recovery, here, the 15-year time-series was too short to be able to conclude on the resilience of Bunaken reefs.
Plan de classement
Ecologie, systèmes aquatiques [036] ; Télédétection [126]
Description Géographique
INDONESIE
Localisation
Fonds IRD [F B010073616]
Identifiant IRD
fdi:010073616
Contact
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    Horizon Pleins textes
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