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| Collin, Antoine; Dubois, Stanislas; Ramambason, Camille; Etienne, Samuel. |
| Biogenic reefs provide a wide spectrum of ecosystem functions and services, such as biodiversity hotspot, coastal protection, and fishing practices. Honeycomb worm (Sabellaria alveolata) reefs, in the Bay of Mont-Saint-Michel (France), constitute the largest intertidal bioconstruction in Europe but undergo anthropogenic pressures (aquaculture-stemmed food/space competition and siltation, fishing-driven trampling). Very high-resolution (VHR) airborne optical data enable cost-efficient biophysical measurements of reef colonies, strongly expected for conservation approaches. A synergy of remotely sensed airborne optical imagery, calibration/validation photoquadrat ground-truth (202/101, respectively), and artificial neural network (ANN) modelling is first... |
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| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00445/55644/57300.pdf |
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| Collin, Antoine; Dubois, Stanislas; James, Dorothée; Houet, Thomas. |
| Coastal living reefs provide considerable services from tropical to temperate systems. Threatened by global ocean-climate and local anthropogenic changes, reefs require spatially explicit management at the submeter scale, where socioecological processes occur. Drone surveys have adequately addressed these requirements with red-green-blue (RGB) orthomosaics and digital surface models (DSMs). The use of ancillary spectral bands has the potential to increase the mapping of all reefscapes that emerge during low tide. This research investigates the contribution of the drone-based red edge (RE), near-infrared (NIR), and DSM into the classification accuracy of five main habitats of the largest intertidal biogenic reefs in Europe, built by the honeycomb worm... |
| Tipo: Text |
Palavras-chave: Reefs; Red edge; Near-infrared; Digital surface model; Classification; Sabellaria alveolata. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00512/62326/66584.pdf |
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| Selmoni, Oliver; Lecellier, Gaël; Ainley, Lara; Collin, Antoine; Doucet, Raimana; Dubousquet, Vaimiti; Feremaito, Hudson; Ito Waia, Edouard; Kininmonth, Stuart; Magalon, Hélène; Malimali, Siola’a; Maugateau, Ateliana; Meibom, Anders; Mosese, Stephen; René-trouillefou, Malika; Satoh, Noriyuki; Van Oppen, Madeleine J. H.; Xozamé, André; Yékawene, Maxime; Joost, Stéphane; Berteaux-lecellier, Véronique. |
| Coral reefs are under threat and innovative management strategies are urgently required. However, discoveries from innovative fields of coral reef research are rarely transposed in practical conservation actions. This is mainly due to the difficulties in knowledge exchange between scientists and conservation stakeholders. The ManaCo consortium (http://manaco.ird.nc/) is an international network federating conservation stakeholders and researchers in a common effort to preserve the coral reefs. The focus is on using modern tools to build a bridge between indigenous knowledge and scientific innovation. ManaCo aims to orientate research toward relevant conservation needs and to facilitate the transposition of research into concrete management strategies. This... |
| Tipo: Text |
Palavras-chave: Coral reef; Conservation; Climate change; Reef management; Knowledge transfer. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00643/75528/76433.pdf |
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