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| Registros recuperados: 41 | |
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| Carpentier, Andre; Coppin, Franck; Curet, Lucie; Dauvin, Jean-claude; Delavenne, Juliette; Dewarumez, Jean-marie; Dupuis, Ludovic; Foveau, Aurélie; Garcia, Clément; Gardel, Laure; Harrop, Stuart; Just, Roger; Koubbi, Philippe; Lauria, Valentina; Martin, Corinne; Meaden, Geoff; Morin, Jocelyne; Ota, Yoshi; Rostiaux, Emilie; Smith, Bob; Spilmont, Nicolas; Vaz, Sandrine; Villanueva, Ching-maria; Verin, Yves; Walton, Joanne; Warembourg, Caroline. |
| Readers of our first CHARM I atlas will know that almost everything contained within the atlas was original work resulting from two years of intensive study of the Dover Strait by a dedicated and inter- disciplinary team working from bases on either side of the Channel. The present atlas has carried on this eminent precedent, though this time covering the whole of the eastern English Channel (figure 1) and widening considerably the thematic scope. We believe that readers of this current atlas will be impressed by both the breadth and depth of the information provided, and that therefore this content should be available for use in both a wide variety of fields and at various levels of interest (researchers, industries, statutory organisations, the wider... |
| Tipo: Text |
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| Ano: 2009 |
URL: http://archimer.ifremer.fr/doc/2009/rapport-7377.pdf |
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| Villanueva, Ching-maria. |
| A comparative study of the Sine-saloum (Senegal) and Gambia (The Gambia) estuaries was performed based on trophic model outputs that describe the system structure and functioning. These trophic models were constructed such as to differentiate main energetic flows in the systems and express how climate change may have impacted ecosystem resilience to change. Estuarine fish assemblages are highly resilient despite exposure to vast hydrodynamic variations and stress. Coupled with strong anthropogenic-driven stresses such as fisheries and climate change, ecosystems may undergo severe regime shifts that may weaken their resilience and stability. Taxonomically related and morphologically similar species do not necessarily play similar ecological roles in these... |
| Tipo: Text |
Palavras-chave: Complex adaptative systems; Climate change; Food web models; Regime shifts; Ecosystem resilience; Trophic ecology. |
| Ano: 2015 |
URL: https://archimer.ifremer.fr/doc/00249/36034/34571.pdf |
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| Martin, C. S.; Carpentier, Andre; Vaz, Sandrine; Coppin, Franck; Curet, L.; Dauvin, J. -c.; Delavenne, Juliette; Dewarumez, J. -m.; Dupuis, L.; Engelhard, G.; Ernande, Bruno; Foveau, A.; Garcia, C.; Gardel, Laure; Harrop, S.; Just, R.; Koubbi, P.; Lauria, Valentina; Meaden, G. J.; Morin, Jocelyne; Ota, Y.; Rostiaux, Emilie; Smith, R.; Spilmont, N.; Verin, Yves; Villanueva, Ching-maria; Warembourg, Caroline. |
| The eastern English Channel, the narrow channel of water separating northern France and southeast England is an area of intense human use of the array of resources concentrated into its relative small area. The vulnerability of living resources and their habitats brought together French and British maritime experts within a common project (called CHARM): to create an atlas of marine resource habitats in the eastern English Channel so as to provide planners and decision-makers with the necessary information to help managing the use of its living and non-living resources. This multidisciplinary and richly illustrated atlas provides abundant information on the legal framework and physical environment; benthic invertebrates, fish and their habitats; fishing... |
| Tipo: Text |
Palavras-chave: Eastern English Channel; Dover Strait; Benthos; Fish; Habitat; Ecosystem; Marine spatial planning; Fisheries; Legislation; Trophic network; Food web; GIS; Geographic Information System. |
| Ano: 2009 |
URL: http://archimer.ifremer.fr/doc/00000/11169/7523.pdf |
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| Araignous, Emma; Beaugrand, Gregory; Ben Rais Lasram, Frida; Bourdaud, Pierre; Champagnat, Juliette; Dauvin, Jean-claude; Grangeré, Karine; Halouani, Ghassen; Haraldsson, Matilda; Hattab, Tarek; Le Loch, Francois; Leroy, Boris; Lejart, Morgane; Niquil, Nathalie; Nogues, Quintin; Pagot, J.-p.; Raoux, Aurore; Safi, Georges; Villanueva, Ching-maria. |
| Les études d’impact environnemental menées en amont des projets éoliens offshores considèrent chaque compartiment de manière individuelle, et non pas l’écosystème dans son ensemble. La compréhension des liens trophiques et l’appréhension de l’écosystème de manière holistique est pourtant un enjeu important rapporté par les politiques publiques telles que la Directive Cadre Stratégie pour le Milieu Marin (Directive 2008/56/EC). Le projet collaboratif TROPHIK (ANR-10-IEED-0006-12) pose les bases d’une approche écosystémique des Energies Marines Renouvelables (EMR) destinée à permettre une démarche holistique et intégrée avant installation de parcs éoliens en mer. Cette approche s’appuie sur un cas d’étude français, le site du futur parc éolien au large de... |
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| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00511/62273/66478.pdf |
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| Kakkaeo, Montharop; Chittapalapong, Tanaporn; Villanueva, Ching-maria. |
| The diet composition and feeding habits have been investigated for several economically important indigenous species based on diel surveys collected from the Ubolratana reservoir (Thailand). For some of these populations the daily food ration, feeding periods, ingestion and evacuation rates were determined using MAXIMS, an iterative computer software utilising 24-hour series of stomach content data obtained in natural populations. The results obtained provide useful information for studies of the trophic relationship in the reservoir and can be explained by some observed migrating patterns of these fish populations. |
| Tipo: Text |
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| Ano: 2004 |
URL: http://archimer.ifremer.fr/doc/00143/25423/23577.pdf |
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| Villanueva, Ching-maria; Isumbisho, M; Kaningini, B; Moreau, J; Micha, J. |
| An Ecopath model of the southern part of Lake Kivu, a deep African equatorial lake was constructed to quantitatively describe the possible impact of fish introductions in this ecosystem. This study is considered as an initial step in summarizing ecological and biological information, under a coherent framework, on this ecosystem. Fourteen compartments were considered. As a phytoplankton-based food web, it is observed that key food sources are not fully utilized as transfer efficiencies per trophic levels (TL) varies between 4.5 and 9.4%. Zooplankton plays a major role in transferring organic matter from TL1 to higher TLs due to the abundance of zooplanktivores. Shifts in food preferences and distribution of some of the fish functional groups were observed... |
| Tipo: Text |
Palavras-chave: Lake Kivu; Exotic fishes; Invasion; Transfer efficiency; Food web structure. |
| Ano: 2008 |
URL: http://archimer.ifremer.fr/doc/2008/publication-4722.pdf |
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| Weliange, Wasantha S.; Amarasinghe, Upali S.; Moreau, Jacques; Villanueva, Ching-maria. |
| Twelve diel surveys were carried out in three reservoirs of Sri Lanka viz. Minneriya, Udawalawe and Victoria, to investigate diel feeding patterns, daily ration and relative food consumption in fish populations. Stomach content weights of different size classes of various fish species in the three reservoirs in 12 diel surveys were analysed using an iterative method, MAXIMS. Predominantly herbivorous or detritivorous fish species such as Amblypharyngodon melettinus and Oreochromis niloticus exhibited one peak in the diel feeding pattern. Two peak feeding periods were evident in predominantly insectivores and/or zooplanktivores (e. g., Puntius chola and Rasbora daniconius) and interestingly in macrophyte feeders (i.e., Etroplus suratensis, Puntius... |
| Tipo: Text |
Palavras-chave: Cichlidae; Cyprinidae; Trophic modelling; Freshwater fish; Feeding chronology; Diel feeding pattern. |
| Ano: 2006 |
URL: http://archimer.ifremer.fr/doc/2006/publication-2134.pdf |
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| Mahe, Kelig; Villanueva, Ching-maria; Vaz, Sandrine; Coppin, Franck; Koubbi, Philippe; Carpentier, Andre. |
| Striped red mullet Mullus surmuletus L. 1758 is an economically important species in the Mediterranean Sea and in the northern Atlantic Ocean, where it is exploited from the Bay of Biscay to the southern North Sea (ICES, 2010). In Atlantic waters, there are two main areas where this species is caught, the Bay of Biscay and the eastern English Channel. This species was initially exploited by the Spanish fleets along the Spanish coast inside the Bay of Biscay. Originally considered as valuable by-catch (Marchal, 2008), the growing exploitation ofM. surmuletus and a conspicuous increase in landings in the English Channel and the southern North Sea by French, English and Dutch fleets have been observed from the 1990s onwards. This was attributed to an increase... |
| Tipo: Text |
Palavras-chave: Stock identification; Head morphology; Fish body shape; Truss model; Morphometric analysis. |
| Ano: 2014 |
URL: http://archimer.ifremer.fr/doc/00185/29587/28050.pdf |
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| Cachera, Marie; Villanueva, Ching-maria; Ernande, Bruno; Baheux, Mickael; Rouquette, Manuel; Chambord, Sophie; Lefebvre, Sebastien. |
| Each species pertains to a given functional niche, depending on its relationships with others species and its interactions with the abiotic environment. Understanding inter-specific interactions is critical to know and predict ecosystems' structure, functioning and dynamics, but also their response to anthropogenic impacts. Predator-prey relationship is one of the main biotic interactions as it both determines the survival of the prey and the predator and is the keystone of food webs. Unraveling the determinants of predator-prey relationships or, in other terms, the reason why a given predator catches a given prey is therefore of primary importance. Fishes are characterized by a remarkable diversity of shapes which can be associated by their feeding and... |
| Tipo: Text |
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| Ano: 2011 |
URL: http://archimer.ifremer.fr/doc/00161/27215/25414.pdf |
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| Van, Mai Viet; Phuong, Nguyen Thanh; Dinh, Tran Dac; Villanueva, Ching-maria; Moreau, Jacques. |
| A mass-balance Ecopath model of coastal areas in the Mekong Delta has been constructed for a quantitative description of the trophic structure of the ecosystem. The model is used to estimate the important biological parameters and relationships among the different ecologically important groups. The model is based on the data collected from bottom trawling. There are 14 functional groups based on 58 species from coastal areas in the Mekong Delta survey such as shrimps, squids, crabs, mackerel, small pelagics, demersal fishes, benthic feeders, predator fishes and trash fish. The biomass value was estimated from catch production and bottom trawling surveys. Results show that the estimated total biomass of exploited resources was 3.99 ton.km-2. The values of... |
| Tipo: Text |
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| Ano: 2010 |
URL: http://archimer.ifremer.fr/doc/00143/25419/23570.pdf |
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| Registros recuperados: 41 | |
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