Consulta: creatorFacets:"Schohn, Thomas"
Registros recuperados: 7
Data/hora: 03/06/2024 00:47:55

Etat de santé des habitats et peuplements de poissons de la Réserve Merlet, zone inscrite au Patrimoine Mondial - Evaluation initiale par stations vidéo rotatives STAVIRO
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Bockel, Thomas; Pelletier, Dominique; Carpentier, Liliane; Schohn, Thomas.
Conducted within the AMBIO project, this work deals with coral reef fish communities and associated habitats, in the New Caledonian lagoons. It relies on remote unbaited underwater video observations, using the STAVIRO rotating technique. The field work was realized in 2013 in and around the Merlet Marine Reserve, in the south of New-Caledonia, and located within the “Grand Lagon Sud” world heritage area. The sampling design covers the entire area, and was stratified according to reef type (outer slope, reef flat, reef shallow terrace, lagoon, and fringing reef). 162 stations were validated within 6 days. They were analyzed to characterize the habitat surrounding each station, and fish communities, based on a list of 429 fish species (cf. AMBIO/A/1). 28...
Tipo: Text
Palavras-chave: Biodiversité Ichtyofaune Habitat Vidéo sous-marine STAVIRO Evaluation Suivi Réserve Merlet AMP; Patrimoine mondial; Ecosystème corallien Nouvelle-Calédonie Indicateur Tableau de bord Serveur de cartes Sextant PAMPA Biodiversity Fish Habitat Underwater video STAVIRO Monitoring and assessment Merlet Marine Reserve MPA; World Heritage Coral reefs New Caledonia Indicator Dashboard Map server Sextant PAMPA.
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00406/51756/52353.pdf

Etat de santé des habitats et peuplements de poissons des atolls d’Entrecasteaux, zone inscrite au Patrimoine Mondial de l’Humanité et Parc naturel de la mer de Corail. Evaluation initiale par stations vidéo rotatives STAVIRO
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Schohn, Thomas; Pelletier, Dominique; Carpentier, Liliane.
The AMBIO project conducted a comprehensive video-based baseline assessment of coral reef fish communities and associated habitats in the New Caledonian lagoons. Observation relies on remote unbaited underwater video, using the STAVIRO rotating technique (Pelletier et al. 2012).  This survey was conducted in 2015 in Entrecasteaux Reefs, both located within the Coral Sea Natural Park, and part of World Heritage site. 109 STAVIRO were validated in 9 days, covering the reefs and geomorphological units in the area. Images were analyzed to characterize the habitat surrounding each station, and fishes based on a list of 565 species (Pelletier et al. 2016).  28 indicators were computed and represented on maps (Sextant server). Indicators were analyzed using the...
Tipo: Text
Palavras-chave: Biodiversité; Ichtyofaune; Habitat; Vidéo sous-marine; STAVIRO; Evaluation; Suivi; Aire Marine Protégée; Patrimoine mondial; Parc de la mer de Corail; Ecosystème corallien; Nouvelle-Calédonie; Indicateur; Tableau de bord; Cartes; Sextant; PAMPA; Biodiversity; Fish; Habitat; Underwater video; STAVIRO; Monitoring and assessment; Marine Protected Area: Coral Sea Natural Park; World Heritage; Coral reefs; New Caledonia; Indicator; Dashboard; Map; Sextant; PAMPA.
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00406/51760/52357.pdf

A regionally scalable habitat typology for assessing benthic habitats and fish communities: Application to New Caledonia reefs and lagoons
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Pelletier, Dominique; Selmaoui‐folcher, Nazha; Bockel, Thomas; Schohn, Thomas.
Scalable assessments of biodiversity are required to successfully and adaptively manage coastal ecosystems. Assessments must account for habitat variations at multiple spatial scales, including the small scales (&lt;100 m) at which biotic and abiotic habitat components structure the distribution of fauna, including fishes. Associated challenges include achieving consistent habitat descriptions and upscaling from in situ‐monitored stations to larger scales. We developed a methodology for (a) determining habitat types consistent across scales within large management units, (b) characterizing heterogeneities within each habitat, and (c) predicting habitat from new survey data. It relies on clustering techniques and supervised classification rules and was...
Tipo: Text
Palavras-chave: Coral Sea Marine Park; Data mining; Habitat prediction; Habitat typology; In situ monitoring; Marine protected areas; Scaling up; Supervised classification rules; Underwater video.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00632/74433/74153.pdf

Etat de santé des habitats et peuplements de poissons des îles et récifs de l’Astrolabe, Pétrie et Walpole, Parc Naturel de la Mer de Corail. Evaluation initiale par stations vidéo rotatives STAVIRO
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Schohn, Thomas; Bockel, Thomas; Carpentier, Liliane; Pelletier, Dominique.
- The AMBIO project conducted a comprehensive video-based baseline assessment of coral reef fish communities and associated habitats in the New Caledonian lagoons. The survey relies on remote unbaited underwater video observations, using the STAVIRO rotating technique.  - The study pertains to the reefs of Astrolabe, Pétrie and Walpole Island, located within the Coral Sea Natural Park. The survey conducted in 2014 covers the entire area, and the sampling design was stratified according to reef type. 95 stations were validated. They were analyzed to characterize the habitat surrounding each station, and fish communities, based on a list of 565 fish species (cf. AMBIO/A/1).  - 28 indicators were computed and mapped (maps available on a Sextant server)....
Tipo: Text
Palavras-chave: Biodiversité; Ichtyofaune; Habitat; Vidéo sous-marine; STAVIRO; Evaluation; Suivi; Parc naturel mer de Corail; Nouvelle-Calédonie; Indicateur; Tableau de bord; Serveur de cartes; Sextant; PAMPA; Ecosystème corallien; Biodiversity; Fish; Habitat; Underwater video; STAVIRO; Monitoring and assessment; Marine Protected Area: Coral Sea Natural Park; Coral reefs; New Caledonia; Indicator; Dashboard; Map server; Sextant; PAMPA.
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00406/51738/52324.pdf

Etat de santé des habitats et peuplements de poissons de la Corne Sud, zone inscrite au Patrimoine Mondial de l’Humanité - Evaluation initiale par stations vidéo rotatives STAVIRO
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Bockel, Thomas; Schohn, Thomas; Pelletier, Dominique; Carpentier, Liliane.
The AMBIO project conducted a comprehensive video-based baseline assessment of coral reef fish communities and associated habitats in the New Caledonian lagoons. The survey relies on remote unbaited underwater video observations, using the STAVIRO rotating technique. The present study deals with the Corne Sud area, in the south of New-Caledonia, and located within the “Grand Lagon Sud” World Heritage Property. The survey design covers the entire area. 155 stations were validated within 9 days. They were analyzed to characterize the habitat surrounding each station, and fish communities, based on a list of 429 fish species (cf. AMBIO/A/1). 27 indicators were computed and mapped (maps available on a Sextant server). Indicators were analyzed using the PAMPA...
Tipo: Text
Palavras-chave: Biodiversité Ichtyofaune Habitat Vidéo sous-marine STAVIRO Evaluation Suivi Patrimoine mondial; Ecosystème corallien Nouvelle-Calédonie Indicateur Tableau de bord Serveur de cartes Sextant PAMPA Biodiversity Fish Habitat Underwater video STAVIRO Monitoring and assessment World Heritage Coral reefs New Caledonia Indicator Dashboard Map server Sextant PAMPA.
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00406/51758/52355.pdf

Evaluation de l’impact de l’activité de croisière sur l’habitat et les peuplements de poissons de la Baie d’Easo-Xepenehe, Lifou. Campagne de stations vidéo rotatives STAVIRO 2014
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Pelletier, Dominique; Bockel, Thomas; Carpentier, Liliane; Schohn, Thomas; Raillard, Benoit; Roman, William; Powell, Abigail.
This study is conducted within the AMBIO project, focused on the biodiversity of New Caledonian lagoons. It aims at assessing the ecological impact of touristic cruises in the Baie du Santal at Lifou Island. A survey conducted in 2014 using the remote unbaited underwater video STAVIRO rotating technique, enabled to validate 133 stations, which were then analyzed to characterize the habitat surrounding each station, and fish communities, based on a list of 565 fish species. 15 indicators were computed and mapped (maps available on a Sextant server). They were analysed using the PAMPA computing tool. Outcomes were organized in a dashboard for each management objective (biodiversity conservation and fisheries management).  122 fish species (plus turtle and...
Tipo: Text
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00362/47348/47335.pdf

Devenir des apports terrigènes autour du Grand Nouméa (Décembre 2016 - Avril 2017)
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Desclaux, Terence; Hubert, Clarisse; Le Tesson, Eric; Lemonnier, Hugues; Petton, Sebastien; Royer, Florence; Soulard, Benoit; Schohn, Thomas; Le Gendre, Romain.
Dans l’objectif de mieux caractériser le devenir en mer des apports terrigènes autour de la ville de Nouméa, Nouvelle-Calédonie, notamment suite au passage de dépressions et cyclones tropicaux, différents réseaux d’observation routiniers (GOPS, Météo-France, DAVAR) ont été complétés par l’installation d’instruments au niveau des exutoires marins de la Dumbéa et la Coulée, et par la réalisation répétée de profils hydrologiques (CTD) sur la zone côtière d’intérêt. L’objectif de ce rapport est de restituer et commenter les observations collectées. Le contexte météo-océanique et les observations réalisées sont d’abord exposés sur l’ensemble de la période étudiée, qui court du 1er décembre 2016 au 30 avril 2017. Les conséquences du passage du cyclone Cook sur...
Tipo: Text
Palavras-chave: Apports terrigènes; Lagon; Campagne de mesure; Panache; Rivière; Cyclone; Dépression tropicale; Grand Nouméa; Nouvelle-Calédonie; Physico chimie.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00471/58315/60865.pdf