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Ordenar por: RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 6
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Estimation des stocks de poissons des lagons de Nouvelle-Calédonie : 2 – Stocks des poissons de fond et des poissons associés aux récifs coralliens ArchiMer
Kulbicki, M; Labrosse, Pierre; Letourneur, Y.
Fish stocks found on lagoon bottoms and near reefs are characterized by a high diversity and heterogeneous habitat which make stock estimation difficult. In particular, it is necessary to combine several methods in order to evaluate the major components of these stocks. The present study aimed at estimating reef fish stocks in the Northern Province of New Caledonia, a region where they represent a major target for the local fishermen. These estimates were based on experimental fishing with handlines and bottom longlines. Handlines were used to assess the stocks near reefs, and longlines for those in areas away from reefs and on lagoon soft bottoms. Handline stations (363) were sampled in three different regions (west, north and east lagoons) and three...
Tipo: Text Palavras-chave: Poissons démersaux; Évaluation de stocks; Palangrottes; Lignes à main; Fonds meubles; Récifs; Nouvelle-Calédonie; Océan Pacifique; Demersal fish; Stock assessment; Handline; Longline; Soft bottoms; Reefs; SW New Caledonia; Pacific Ocean.
Ano: 2000 URL: https://archimer.ifremer.fr/doc/00608/71969/70659.pdf
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Régime alimentaire de poissons carnivores des récifs coralliens de Nouvelle Calédonie ArchiMer
Kulbicki, M; Bozec, Ym; Labrosse, Pierre; Letourneur, Y; Mou-tham, G; Wantiez, L.
A total of 212 carnivorous coastal fish species from New Caledonia, represented by 7335 individuals, were analysed for their diet. Fifty two prey items were identified and later grouped into broader taxonomic categories refered as "prey types". For each fish species 6 biological traits were defined: maximum adult size, major biotope, schooling behaviour, home range, nycthemeral behaviour, degree of crypticity. A general linear model was fit to the diet data taking into account these traits, and depth of capture and fish family. This model was applied to the average number of prey types/stomach and to the volume of 5 prey types: nekton, crustaceans. molluscs, echinoderms, worms. A second analysis was performed on the effect of observed size on diet...
Tipo: Text Palavras-chave: Coral reefs; Fish diet; Trophic level; Indian ocean.
Ano: 2005 URL: https://archimer.ifremer.fr/doc/00608/71965/70663.pdf
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Commercial fish assemblages on New Caledonian fringing reefs submitted to different levels of ground erosion ArchiMer
Letourneur, Y; Labrosse, Pierre; Kulbicki, M.
A comparative study was conducted in two zones of the Northern Province of New Caledonia, one located windward (east coast) and the other located leeward (west coast). In each zone, three major sectors were investigated: fringing reefs close to areas of important mining activities, fringing reefs close to areas of moderate mining activities, and fringing reefs close to areas free of mining activities. In addition, on the west coast, fringing reefs close to areas of high natural ground erosion were also studied. Only commercial fish species sensus late were censused on a total of 163 stations, concerning 165 fish species. Substrate characteristics were not different between zones and sectors. However, significant differences were observed for living...
Tipo: Text Palavras-chave: Ichtyofaune; Récif corallien; Activité minière; Apport terrigène; Océan Pacifique; Ichthyofauna; Fringing reefs; Mining activities; Terrigeneous runoff; Pacific Ocean.
Ano: 1999 URL: https://archimer.ifremer.fr/doc/00325/43586/44026.pdf
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Spatial and temporal variations of fish assemblages in a shallow Mediterranean soft-bottom area (Gulf of Fos, France) ArchiMer
Letourneur, Y; Darnaude, A; Salen-picard, C; Harmelin-vivien, M.
The fish assemblages of two shallow soft-bottom areas located in the Gulf of Fos (NW Mediterranean) were studied by means of 57 trawl surveys carried out on both seasonal and diel scales between 1983 and 1985. A total of 47 fish species was recorded, with a mean density and biomass of 650 individuals ha(-1) and 2.67 kg ha(-1), respectively. Most of the fluctuations observed were on the spatial scale. Strong differences in fish assemblages were observed between the two areas, with both higher species richness and biomass in the outer part of the gulf (La Gracieuse), while a higher density of individuals characterised its inner part (Bay of Carteau). This spatial pattern was due to a small number of species, such as the gobiids Gobius niger and Pomatoschitus...
Tipo: Text Palavras-chave: Ichtyofaune démersale; Gobiidae; Pleuronectiformes; Distribution spatiale; Variations temporelles; Demersal ichthyofauna; Gobiidae; Pleuronectiforms; Spatial distribution; Temporal variations.
Ano: 2001 URL: http://archimer.ifremer.fr/doc/00322/43355/42858.pdf
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Estimation des stocks de poissons des lagons de Nouvelle-Calédonie : 3 – Pression de pêche, rendements potentiels et impact sur les options d’aménagement ArchiMer
Labrosse, Pierre; Letourneur, Y; Kulbicki, M; Paddon, Jr.
The potential yields of demersal reefal and lagoonal finfish, which are valuable for trade or consumption in the Northern Province of New Caledonia, are unknown. Fishing pressure was estimated from tally-sheets of professional fishermen to assess trade fishing and a household consumption survey to assess subsistence fishing. Total yield was estimated to be 1 326 tonnes in 1995, 94 % of which correspond to subsistence fishing. Most of the catches were taken from the east and west coasts; in the north zone (Belep Archipelago) catches were very low. From this fishing pressure and the total stock values, the maximum sustainable yield (MSY) was estimated to be 12 600 t, which was about 10 % of the total stocks assessed in the Northern Province (138 300 t). This...
Tipo: Text Palavras-chave: Pêcheries lagonaires; Captures; Prises maximales soutenues; Pêche de subsistance; Nouvelle-Calédonie; Océan Pacifique; Lagoon fisheries; Fishery resources; Current yields; Maximum sustainable yields; Subsistence fishing; New Caledonia; Pacific Ocean.
Ano: 2000 URL: https://archimer.ifremer.fr/doc/00608/71970/70660.pdf
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Estimation des stocks de poisson des lagons de Nouvelle-Calédonie : 1 – Structure et stocks des communautés des poissons de récifs. ArchiMer
Letourneur, Y; Kulbicki, M; Labrosse, Pierre.
Lagoon fish in New Caledonia are mainly caught by artisanal fisheries and subsistence fishing. Reef fish are the major component of this catch. The present study aimed at estimating these reef fish standing stocks and at finding the main factors influencing the distribution of these fish. Sampling of 904 stations was stratified according to three zones (north, east and west) and three reef types (barrier, intermediate and fringing). Fish communities exhibited strong heterogeneity in their distribution, showing higher biomass (maximum of 447 g.m(-2)) and total standing stock (43 000 tonnes) in the north zone than in the east and west zones. Similarly, observed patterns were dependent on reef types: higher biomass and total standing stock being observed on...
Tipo: Text Palavras-chave: Poissons de récifs; Poissons démersaux commerciaux; Structure de population; Nouvelle-Calédonie; Océan Pacifique; Reef fish; Commercial demersal fish; Population structure; New Caledonia; SW Pacific Ocean.
Ano: 2000 URL: https://archimer.ifremer.fr/doc/00608/71968/70658.pdf
Registros recuperados: 6
Primeira ... 1 ... Última
 

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