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| Proisy, Christophe; Viennois, Gaelle; Sidik, Frida; Andayani, Ariani; Enright, James Anthony; Guitet, Stephan; Gusmawati, Niken; Lemonnier, Hugues; Muthusankar, Gowrappan; Olagoke, Adewole; Prosperi, Juliana; Rahmania, Rinny; Ricout, Anais; Soulard, Benoit; Suhardjono,. |
| Revegetation of abandoned aquaculture regions should be a priority for any integrated coastal zone management (ICZM). This paper examines the potential of a matchless time series of 20 very high spatial resolution (VHSR) optical satellite images acquired for mapping trends in the evolution of mangrove forests from 2001 to 2015 in an estuary fragmented into aquaculture ponds. Evolution of mangrove extent was quantified through robust multitemporal analysis based on supervised image classification. Results indicated that mangroves are expanding inside and outside ponds and over pond dykes. However, the yearly expansion rate of vegetation cover greatly varied between replanted ponds. Ground truthing showed that only Rhizophora species had been planted,... |
| Tipo: Text |
Palavras-chave: Mangroves; Rehabilitation; Rhizophora plantations; Shrimp ponds; Remote sensing; ICZM. |
| Ano: 2018 |
URL: http://archimer.ifremer.fr/doc/00389/50088/52252.pdf |
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| Gusmawati, Niken; Soulard, Benoit; Selmaoui-folcher, Nazha; Proisy, Christophe; Mustafa, Akhmad; Le Gendre, Romain; Laugier, Thierry; Lemonnier, Hugues. |
| From the 1980's, Indonesian shrimp production has continuously increased through a large expansion of cultured areas and an intensification of the production. As consequences of diseases and environmental degradations linked to this development, there are currently 250,000 ha of abandoned ponds in Indonesia. To implement effective procedure to undertake appropriate aquaculture ecosystem assessment and monitoring, an integrated indicator based on four criteria using very high spatial optical satellite images, has been developed to discriminate active from abandoned ponds. These criteria were: presence of water, aerator, feeding bridge and vegetation. This indicator has then been applied to the Perancak estuary, a production area in decline, to highlight the... |
| Tipo: Text |
Palavras-chave: Aquaculture; Abandoned ponds; VHSR images; Indicator; Supervised classification; Spatial and temporal survey. |
| Ano: 2018 |
URL: http://archimer.ifremer.fr/doc/00392/50343/51081.pdf |
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