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| Registros recuperados: 18 | |
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| Lalau, Noemie; Soulard, Benoit; Le Gendre, Romain. |
| Ce rapport fait partie du projet de recherche PRESENCE (PRESsions sur les Ecosystèmes récifo-lagonaires de Nouvelle-CalédoniE). L'objectif général de ce projet est de mieux appréhender le fonctionnement des lagons de Nouvelle-Calédonie à partir d'observations in-situ, de télédétection et de modélisation. Une des tâches de PRESENCE consiste notamment à étudier, via des modèles hydrodynamiques, le devenir des apports terrigènes au sein des lagons, et cela à l'échelle de la Grande Terre. Ce rapport présente la méthodologie mise en oeuvre pour se constituer un jeu de données de forçages hydriques, continu sur la période 2011-2017, au pas de temps journalier et englobant la majorité des bassins versants sur lesquels nous disposons de mesures. |
| Tipo: Text |
Palavras-chave: Bassins versants; Nouvelle-Calédonie; Débit; Crues; Apports terrigènes; Grande Terre. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00505/61636/65558.pdf |
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| Cabioch, G; Correge, T; Turpin, L; Castellaro, C; Recy, J. |
| In New Caledonia, core data indicate that the fringing reefs grew during the last interglacial and the Holocene, while the barrier reefs developed during several high sea level stands of the Quaternary. These growth periods are archived in a 128-m-long core from Ilot Amedee, offshore of Noumea. Directly upon the peridotitic substrate (reached at 126.50 m), a basal unit comprising abundant rhodoliths, molluscs and rare corals is characteristic of the pioneer stage of barrier reef development. Above it, a severely calcitized unit contains corals, molluscs and abundant micritic levels. Then, a sequence punctuated by several minor discontinuities and by a downward increase in diagenetic alteration is found. At 47 m core depth, a unit, which is thought to be... |
| Tipo: Text |
Palavras-chave: Croissance récifale; Néotectonique; Nouvelle-Calédonie; Quaternaire; Reef growth; Neotectonics; New Caledonia; Quaternary. |
| Ano: 1999 |
URL: http://archimer.ifremer.fr/doc/00325/43582/44021.pdf |
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| 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 |
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| Goarant, Cyrille. |
| La Nouvelle-Calédonie présente de nombreux atouts pour la pénéiculture. Le ralentissement brutal de son développement en 1993 s'explique par l'émergence d'une pathologie saisonnière qui affecte les crevettes juvéniles en grossissement, mettant en cause des bactéries du genre Vibrio et qui a reçu le nom de Syndrome 93. Vibrio penaeicida et V. nigripulchritudo sont deux espèces au pouvoir pathogène particulièrement élevé qui affectent les élevages. Une étude de typage moléculaire a permis de préciser leur épidémiologie et de proposer quelques conseils d'ordre zoosanitaire. Un suivi épidémiologique par amplification génique est en cours pour V. penaeicida, qui montre l'importance des facteurs écologiques dans l'apparition des épisodes pathologiques. La... |
| Tipo: Text |
Palavras-chave: Litopenaeus stylirostris; Vibrio penaeicida; Epidémiologie; Pathogénicité; Nouvelle-Calédonie. |
| Ano: 2000 |
URL: http://archimer.ifremer.fr/doc/00444/55510/57060.pdf |
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| Rintz, Cam Ly. |
| The lagoon of New Caledonia is subject to various pressures, including terrigenous stream inputs. Their evolution – extent, intensity – can be studied through parameters such as ocean color, depending on turbidity or phytoplankton concentration. Satellite imagery is more and more used for this purpose. As the Sentinel-2 (S2) mission, with its satellites providing ten meters-resolution images, has been recently launched, we worked on the characterisation of lagoon color using these products. After testing the performance of existing algorithms for New Caledonia, initially applied to satellites other than S2, we tried to establish a new turbidity algorithm based on field data (measures in the South-West lagoon of New Caledonia and the lagoon near Koumac in... |
| Tipo: Text |
Palavras-chave: Couleur de l’eau; Turbidité; Satellite; Télédétection; Réflectance; Lagon; Nouvelle-Calédonie; Sentinel-2. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00645/75752/76712.pdf |
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| 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 |
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| Pelletier, Dominique; Bockel, Thomas; Roman, William; Carpentier, Liliane; Laugier, Thierry. |
| - The AMBIO project conducted a comprehensive video-based baseline assessment of coral reef fish communities and associated habitats in the New Caledonian lagoons. The surveys rely on remote unbaited underwater video observations, using the STAVIRO rotating technique. Chesterfield and Bellona remote reefs and atolls are located in the Coral Sea Marine Park, northwest of New Caledonia. -This 2013 survey is the first scientific survey covering the entire area, with a sampling design stratified according to reef type. 203 stations were validated within 10 days. 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). - 34 indicators were computed and mapped (maps... |
| Tipo: Text |
Palavras-chave: Biodiversité; Ichtyofaune; Habitat; Vidéo sous-marine; STAVIRO; Evaluation; Suivi; Parc de la Mer de Corail; Aire Marine Protégée; AMP; Ecosystème corallien; Nouvelle-Calédonie; Indicateur; Tableau de bord; Serveur de cartes; Sextant; PAMPA; Biodiversity; Fish; Habitat; Underwater video; STAVIRO; Monitoring and assessment; Coral Sea Marine Park; Marine Protected Area; MPA; World Heritage; Coral reefs; New Caledonia; Indicator; Dashboard; Map server; Sextant; PAMPA. |
| Ano: 2016 |
URL: http://archimer.ifremer.fr/doc/00381/49247/49700.pdf |
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| Giraud-carrier, Charlotte; Pelletier, Dominique. |
| • Conducted within the AMBIO project, this work deals with coral reef fish communities and associated habitats, in the New Caledonian lagoons. It aims at assessing the status and trends of habitats and mobile macrofauna in the Voh-Kone-Pouembout lagoon, in the light of demographic and industrial developments and accounting for the existing customary reserve of Oundjo. • It relies on 280 stations collected in 2007 and 2013 using the remote unbaited underwater video STAVIRO rotating technique, which were analysed to characterize habitat, fish assemblages, turtles and sea snakes, from a list of 490 species (AMBIO/A/1). • 143 species (including one turtle species and one sea snake species), belonging to 23 families were observed. The most frequent and abundant... |
| Tipo: Text |
Palavras-chave: Biodiversité; Ichtyofaune; Habitat; Vidéo sous-marine; STAVIRO; Evaluation; Suivi; Impact anthropique; Aire Marine Protégée; Réserve coutumière; Ecosystème corallien; Nouvelle-Calédonie; Indicateur; Tableau de bord; Serveur de cartes; Sextant; PAMPA; Biodiversity; Fish assemblage; Habitat; Underwater video; STAVIRO; Monitoring and assessment; Anthropogenic impact; Marine Protected Area; MPA; Customary reserve; Coral reefs; New Caledonia; Indicator; Dashboard; Map server; Sextant; PAMPA. |
| Ano: 2016 |
URL: http://archimer.ifremer.fr/doc/00360/47109/47050.pdf |
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| Bourassin, Emmanuel; Bruyere, Oriane; Le Gendre, Romain; Soulard, Benoit. |
| Ce rapport fait partie du projet de recherche PRESENCE (PRESions sur les Ecosystèmes récifo-lagonaires de Nouvelle-CalédoniE). L’objectif général de ce projet est de mieux appréhender le fonctionnement des lagons de Nouvelle-Calédonie à partir d’observations in-situ, de télédétection et de modélisation. Une des tâches de PRESENCE consiste notamment à étudier via des modèles hydrodynamiques le devenir des apports terrigènes au sein des lagons, et cela à l’échelle de la Grande Terre. Ce rapport présente la méthodologie utilisée et les données produites pour compléter le travail effectué lors de la création de l’Atlas 2011-2017 des apports hydriques à l’échelle du territoire calédonien (Lalau et al., 2019). En effet, ce premier rapport ne présentant qu’un... |
| Tipo: Text |
Palavras-chave: Bassins versants; Nouvelle-Calédonie; Débits; Crues; Apports terrigènes; Grande Terre. |
| Ano: 2021 |
URL: https://archimer.ifremer.fr/doc/00678/78970/81374.pdf |
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| Gonson, Charles. |
| Coastal areas are complex socio-ecosystem where ecological, human and decisional compounds show multiple and reciprocal relationships. Because of the growth of population and tourism sector, coastal areas are permanently threatened through increase of recreational uses and diversification of related activities. To better understand coastal areas functioning, it is necessary to take into account uses and their management. Monitoring data over a ten years period revealed that recreational uses greatly increased especially within Marine Protecting Areas (MPA), during week-end days and warm season resulting to higher and more frequent frequentation peaks. While, practices within MPA are managed to decrease impacts, pressures associated with recreational uses... |
| Tipo: Text |
Palavras-chave: Usages; Nouvelle-Calédonie; AMP; GIZC; Évaluation; Indicateur; DPSIR; Uses; New-Caledonia; MPA; ICZM; Assessment; Indicator; DPSIR. |
| Ano: 2017 |
URL: http://archimer.ifremer.fr/doc/00391/50261/50888.pdf |
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| Lafoy, Yves; Pelletier, Bernard; Auzende, Jean-marie; Missegue, F; Mollard, L. |
| The new bathymetric, magnetic and mainly seismic data acquired during the Zoesis cruise, reveal the presence of compressional features in the ''Fairway Ridge-Fairway Basin-Lord Howe Rise (northern part)'' area, west of New Caledonia. The compressive strain is especially responsible for the formation of the Fairway Ridge. The compression is emphasized by a regional unconformity that could be dated late Eocene, according to DSDP data in the area, and therefore synchronous with the late Eocene obduction of the New Caledonia ophiolites. The westward extension of the late Eocene compressive strain in the New Caledonia area is more developed than previously thought. |
| Tipo: Text |
Palavras-chave: Pacifique Sud-Ouest; Rides de Lord Howe et Fairway; Nouvelle-Calédonie; Déformation compressive; Sismique réflexion.; SOUTHWEST PACIFIC; LORD HOWE AND FAIRWAY RIDGES; NEW CALEDONIA; COMPRESSIVE DEFORMATION; SEISMIC REFLECTION. |
| Ano: 1994 |
URL: http://archimer.ifremer.fr/doc/00183/29457/27888.pdf |
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| Registros recuperados: 18 | |
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