Consulta: creatorFacets:"Urbina-barreto, Isabel"
Registros recuperados: 3
Data/hora: 11/06/2024 02:36:48

Quantifying the shelter capacity of coral reefs using photogrammetric 3D modeling: From colonies to reefscapes
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Urbina-barreto, Isabel; Chiroleu, Frédéric; Pinel, Romain; Fréchon, Louis; Mahamadaly, Vincent; Elise, Simon; Kulbicki, Michel; Quod, Jean-pascal; Dutrieux, Eric; Garnier, Rémi; Henrich Bruggemann, J.; Penin, Lucie; Adjeroud, Mehdi.
Structural complexity plays a key role in the functioning of coral reef ecosystems. Reef-building corals are major contributors to this complexity, providing shelter and food for numerous invertebrates and fish species. Both structural complexity and shelter capacity of reefscapes are determined by several components such as spurs and grooves, slope, caves and holes, vegetation and coral colonies. Quantifying the shelter capacity from coral colonies to reefscapes is a fundamental step to estimating ecosystem potential to support biodiversity. Here, we applied underwater photogrammetry to quantify shelter volumes provided by individual coral colonies. Overall, 120 3D models of coral colonies from branching, massive, columnar and tabular growth forms were...
Tipo: Text
Palavras-chave: Coral reefs; Reef-building corals; Photogrammetry; 3D models; Predictive models; Shelter capacity; Structural complexity; Coral growth forms.
Ano: 2021
URL: https://archimer.ifremer.fr/doc/00659/77065/78372.pdf

Projet EPICURE : Étude des Peuplements Ichtyologiques et des CommUnautés RécifalEs à partir d’indicateurs spatiaux et de l’approche fonctionnelle, des bancs du Geyser, de la Zélée et de l’Iris. Programme du Xème FED régional « Gestion durable du patrimoine naturel de Mayotte et des îles Eparses
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Roos, David; Dupont, Priscilla; Gaboriau, Matthias; Bigot, Lionel; Durville, Patrick; Mulochau, Thierry; Pinault, Mathieu; Wickel, Julien; Urbina-barreto, Isabel; Mouquet, Pascal; Maurel, Laurence; Cantou, Michel; Fallourd, Sophie; Guilbert, Antonin; Hoarau, Jean-marc; Aumond, Yoann; Huet, Jerome; Evano, Hugues; Sabathe, Yoann; Giannasi, Paul; Adami, Paul; Mercky, Yann; Jac, Cyrielle; Sucre, Elliott; Pelletier, Dominique; Claverie, Thomas.
For the first time ever at such a spatial scale, the EPICURE project is using the complementary exosystemic, functional and fisheries approaches to analyze and compare the partially exploited fish‐populating structure of the Geyser, Zélée, and Iris banks. This project focuses on three main points, which are 1) a habitat map of the three banks and an assessment of the live coral coverage as a proxy of the Geyser bank’s health, 2) a description of fish assemblages and a functional analysis relative to habitat type and time and 3) an estimate of the abundance index in structure size of the main exploited stocks. Overall, 42 habitats over 268 km² were mapped on the Geyser bank with 534 field verifications. On the Zélée bank, 24 habitats were mapped over 183...
Tipo: Text
Palavras-chave: Peuplements ichtyologiques; Communautés récifales; Indicateurs populationnels; Approche fonctionnelle; Stocks halieutiques; Cartographie; Habitats; Bancs récifaux; Geyser; Iris; Zélée; Canal du Mozambique; Fish populating; Reef community; Population index; Functional approach; Fisheries stocks; Habitat map; Reef bank; Geyser; Zélée; Iris; Mozambican channel.
Ano: 2017
URL: https://archimer.ifremer.fr/doc/00434/54549/55924.pdf

Nouveaux indices quantitatifs pour le suivi des récifs coralliens issus de modélisation 3D par photogrammétrie
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Urbina-barreto, Isabel.
Habitat structural complexity plays a key role in the dynamics and resilience of coral reef communities. The critical situation of coral reef ecosystems beseeches a rapid improvement of monitoring tools to assist in the implementation of efficient conservation measures. Today, new reef assessment technologies support researchers and managers to collect information safer, faster, and with greater accuracy. Among them, photogrammetry by Structure-from-Motion (SfM) creates three-dimensional models and reef zone maps from overlapping images to conduct quantitative surveys of benthic communities. This thesis addressed four objectives: 1) define underwater photogrammetry protocols to create 3D models of coral colonies and reefscapes, in order to conduct physical...
Tipo: Text
Palavras-chave: Récifs coralliens; SfM-photogrammétrie; Modèles 3D; Complexité structurelle; Descripteurs de l’habitat; Méthodes de suivi; Récifs coralliens -- Conservation des ressources; Modélisation tridimensionnelle; Photogrammétrie; Habitat (écologie); Coral reefs; SfM-photogrammetry; 3D-models; Structural complexity; Habitat descriptors; Survey methods.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00661/77315/78761.pdf