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Registros recuperados: 127
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Evaluation de l’état de santé des habitats et peuplements de poissons de la zone de Voh-Koné-Pouembout, Campagnes de stations vidéo rotatives STAVIRO 2007-2013 ArchiMer
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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Projet GERMON. Structure génétique et migration du thon Germon ArchiMer
Nikolic, Natacha; Puech, Alexis; Chouvelon, Tiphaine; Munschy, Catherine; Bodin, Nathalie; Brach-papa, Christophe; Potier, Michel; West, Wendy; Knoery, Joel; Zudaire, Iker; Dhurmeea, Zahirah; Degroote, Maxime; Cedras, Maria; Evano, Hugues; Bourjea, Jerome.
The GERMON project had several aims i) to understand the populations’ structure between albacore tuna southwest of the Indian Ocean and southeast Atlantic, ii) to determine the origin of juveniles observed in South Africa iii) to improve the understanding of the biology field (Size/Size and Size/Weight; reproduction and feeding area; trophic linkages) and iv) to initiate work on chemical analyzes and adaptation of the albacore species to its environment. These aims have been held and the results allow a better understanding of the management albacore. A general summary of results is presented in Part 9.
Tipo: Text Palavras-chave: Germon; Thunnus alalunga; Génétique; Stock; Structure; Connectivité; Chimie; Reproduction; Alimentation; Habitat; Albacore; Thunnus alalunga; Genetic; Stock; Structure; Connectivity; Chemical; Reproduction; Feeding behavior; Habitat.
Ano: 2015 URL: http://archimer.ifremer.fr/doc/00293/40461/39152.pdf
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Arbre de régression multivariable : application à une communauté de poissons littoraux d’un lac du Bouclier canadien ArchiMer
Brind'Amour, Anik.
La combinaison de deux approches statistiques, une analyse de partitionnement et la technique de l’arbre de régression mutivariable, a été utilisée afin de développer un modèle d’utilisation d’habitats pour une communauté de poissons d’un lac du Bouclier canadien. Les résultats soulignent l’importance des variables dites associées dans le modèle et l’importance de la taille de l’habitat dans la succession d’autres variables environnementales structurantes et dans la détermination de la composition spécifique de la communauté de poissons du lac à l’étude.
Tipo: Text Palavras-chave: Arbre de régression mutivariable; Communauté piscicole; Habitat; Lac; Partitionnement par la méthode des K centroïdes (K-means).
Ano: 2005 URL: http://archimer.ifremer.fr/doc/00048/15972/13412.pdf
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Habitat particulier : le coralligène. Sous-région marine Méditerranée occidentale. Evaluation initiale DCSMM. ArchiMer
Sartoretto, Stephane; Baucour, Colombe.
Tipo: Text Palavras-chave: Méditerranée; Coralligène; Habitat; Circalittoral; Communautés; Etat de conservation.
Ano: 2012 URL: https://archimer.ifremer.fr/doc/00331/44207/43776.pdf
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Analysing Temporal Variability in Spatial Distributions Using Min–Max Autocorrelation Factors: Sardine Eggs in the Bay of Biscay ArchiMer
Petitgas, Pierre; Renard, Didier; Desassis, Nicolas; Huret, Martin; Romagnan, Jean-baptiste; Doray, Mathieu; Woillez, Mathieu; Rivoirard, Jacques.
This paper presents a novel application of the geostatistical multivariate method known as min–max autocorrelation factors (MAFs) for analysing fisheries survey data in a space–time context. The method was used to map essential fish habitats and evaluate the variability in time of their occupancy. Research surveys at sea on marine fish stocks have been undertaken for several decades now. The data are time series of yearly maps of fish density, making it possible to analyse the space–time variability in fish spatial distributions. Space–time models are key to addressing conservation issues requiring the characterization of variability in habitat maps over time. Here, the variability in fisheries survey data series is decomposed in space and time to address...
Tipo: Text Palavras-chave: MAF; Space-time; Habitat; Mapping; Sardine; Bay of Biscay.
Ano: 2020 URL: https://archimer.ifremer.fr/doc/00599/71157/69915.pdf
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On the presence of the rissoid gastropod Alvania lamellata Dautzenberg, 1889 on the top of the azorean Condor seamount (206 m depth) ArchiMer
Le Duff, Michel; Bongiorni, Lucia; Zeppilli, Daniela; Grall, Jacques.
This note reports the presence of the rissoid gastropod Alvania lamellata Dautzenberg, 1889 on the top of the Condor seamount (Azores) at 206 m depth. This allows reconsideration of the ecology of the species which lives in the deep circalittoral rather than in the bathyal zone.
Tipo: Text Palavras-chave: Rissoidae; Alvania lamellata; Açores; Mont sous-marin; Étage; Rissoidae; Alvania lamellata; Azores; Seamount; Habitat.
Ano: 2014 URL: http://archimer.ifremer.fr/doc/00199/31051/29471.pdf
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Utilisation de la technique vidéo STAVIRO pour l’observation et le suivi des ressources et des écosystèmes récifo-lagonaires de Mayotte. Etude pilote et recommandations pour les suivis futurs ArchiMer
Roman, William; Pelletier, Dominique.
• In order to assess the sustainability of fish resources in the Natural Marine Park of Mayotte (Western Indian Ocean), indicators and monitoring protocols must be determined. • This study relied on the underwater video technique STAVIRO for assessing fish communities and resources. A pilot survey was conducted in Nov. 2014 in the south-east quarter of the Mayotte lagoon, an area encompassing the marine reserves of Longogori, M’Bouzi and the Saziley Marine Park. Out of 115 stations collected, 104 were analysed for habitat and fish, based on a list of 527 species with fishing, ecological, or emblematic interest (cf. AMBIO/A/1). • 43 indicators were computed, analysed, and for some mapped. The PAMPA computing tool was used in this purpose. • 130 fish species...
Tipo: Text Palavras-chave: Ichtyofaune; Pêche; Habitat; Vidéo sous-marine; STAVIRO; Evaluation; Suivi; Biodiversité; Ecosystème corallien; AMP; Parc Naturel Marin de Mayotte; Océan Indien; Indicateur; Tableau de bord; PAMPA; Fish; Habitat; Underwater video; STAVIRO; Monitoring and assessment; Biodiversity; Coral reefs; MPA; Natural Marine Park of Mayotte; Western Indian Ocean; Indicator; Dashboard; PAMPA.
Ano: 2016 URL: http://archimer.ifremer.fr/doc/00373/48421/48642.pdf
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Aires marines protégées et récifs artificiels : méthodes d'évaluation, protocoles expérimentaux et indicateurs ArchiMer
Claudet, Joachim.
Marine Protected Areas' (MPAs) and Artificial Reef's (ARs) management requires complex assessment and monitoring programmes, dealing with different sources of variability. We studied and developed experimental designs and analysis methods suited for the establishment of a monitoring of MPAs and ARs. This methodology is developed from existing data sets in the Northwestern Mediterranean. We build multi-criteria indicators allowing a statistically testable diagnosis of the impact of MPAs and ARs on reef fish assemblages. Using ecological performance indicators permits to monitor and to give an image of the assessed system to managers. It was possible to show the global response of the fish assemblages to the protection by a MPA. This response was evidenced...
Tipo: Text Palavras-chave: Management; Northwestern Mediterranean; Statistical Power; Monitoring; Habitat; Multivariate; Indicators; Temperate Fish; Impact Assessment; Artificial Reefs; Marines Protected Areas; Gestion; Méditerranée Nord Occidentale; Puissance Statistique; Suivis; Habitat; Multivarié; Indicateurs; Poissons Tempérés; Evaluation d'Impact; Récifs Artificiels; Aires Marines Protégées.
Ano: 2006 URL: http://archimer.ifremer.fr/doc/2006/these-2132.pdf
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Le rouget barbet de roche Mullus surmuletus (L. 1758) en Manche orientale et mer du Nord. ArchiMer
Mahe, Kelig; Destombe, A.; Coppin, Franck; Koubbi, P.; Vaz, Sandrine; Le Roy, Didier; Carpentier, Audrey.
General introduction: The red mullet is among the fish that are the most popular and that have been known of for the longest amount of time. The Greeks and the Romans have left us in their literature famous pages in which they praise the quality and beautiful colours of their gurnards and their mulles. Also, the skin of this fish has been very popular since earliest antiquity: It is said that for the Romans, a beautiful fish was worth more than the man who had caught it! Moreover, at feasts, a red mullet was displayed in a vase to amuse the guests with the changes of colour (Bloch, 1793). The red rock mullet (Mullus surmuletus) is a benthic fish, which means it lives near the sea bottom. It is geographically present in the Atlantic Ocean from the coasts...
Tipo: Text Palavras-chave: Sig; North sea; English channel; Population dynamic data; Habitat; Spatial repartition; Biology; Mullus surmuletus.
Ano: 2005 URL: http://archimer.ifremer.fr/doc/2005/rapport-2351.pdf
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Modelling the variability in fish spatial distributions over time with empirical orthogonal functions: anchovy in the Bay of Biscay ArchiMer
Petitgas, Pierre; Doray, Mathieu; Huret, Martin; Masse, Jacques; Woillez, Mathieu.
Characterizing the space–time variability in spatial distributions as well as understanding its drivers is basic to designing robust spatial management plans. As a prerequisite, we analyse here how this variability relates to population dynamics in conjunction with environmental conditions. For that, spatio-temporal statistical approaches are needed but seldom used in fisheries science. To fill this gap, we showcase the usefulness of the method of empirical orthogonal functions (EOFs). Guidelines are given to apply the method on a series of gridded maps as derived from fisheries survey dataseries that now span over decades. The method is applied to the series, 2000–2012, of the spatial distributions of European anchovy in the Bay of Biscay at spawning...
Tipo: Text Palavras-chave: Anchovy; Bay of Biscay; Density-dependence; EOF; Habitat; Spatial distribution.
Ano: 2014 URL: https://archimer.ifremer.fr/doc/00222/33365/31907.pdf
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A classification scheme for deep seafloor habitats ArchiMer
Greene, Hg; Yoklavich, Mm; Starr, Rm; O'Connell, Vm; Wakefield, Ww; Sullivan, De; Mcrea, Je; Cailliet, Gm.
A standard, universally useful classification scheme for deepwater habitats needs to be established so that descriptions of these habitats can be accurately and efficiently applied among scientific disciplines. In recent years many marine benthic habitats in deep water have been described using geophysical and biological data. These descriptions can vary from one investigator to another, which makes it difficult to compare habitats and associated biological assemblages among geographic regions. Using geophysical data collected with a variety of remote sensor systems and in situ biological and geologic observations, we have constructed a classification scheme that can be used in describing marine benthic habitats in deep water.
Tipo: Text Palavras-chave: Habitat; Classification universelle; Benthique; Gestion des pêcheries; Habitat; Universal classification; Benthic; Fisheries management.
Ano: 1999 URL: http://archimer.ifremer.fr/doc/00325/43590/44030.pdf
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Utilisation de la technique vidéo STAVIRO pour l’observation et le suivi des ressources et des écosystèmes récifo‐lagonaires de Mayotte. Etude pilote et recommandations pour les suivis futurs. Annexe 1 : Fiches métriques : Influences du statut de pêche, du type géomorphologique et de l’habitat ArchiMer
Roman, William; Pelletier, Dominique; Wickel, Julien; Giannasi, Paul.
• This work deals with coral reef fish resources and communities in the Natural Marine Park of Mayotte, Western Indian Ocean). It relies on remote unbaited underwater video observations, using the STAVIRO rotating technique. • This document is complementary to the main assessment report: William Roman and Dominique Pelletier, 2016. The STAVIRO video technique for monitoring fish resources and reef ecosystems in the Natural Marine Park of Mayotte (Western Indian Ocean). Pilot study and recommendations for monitoring. EXPLOCEAN-IFREMER Report. • It pertains to the assessment of resources with respect to fishing pressure and factors related to local habitat and reef geomorphology. • It comprises the description of the metrics used for the assessment:...
Tipo: Text Palavras-chave: Ichtyofaune; Habitat; Vidéo sous-marine; STAVIRO; Evaluation; Suivi; Biodiversité; Ecosystème corallien; AMP; Parc Naturel Marin de Mayotte; Indicateur; PAMPA; Fish; Habitat; Underwater video; STAVIRO; Monitoring and assessment; Biodiversity; Coral reefs; MPA; Natural Marine Park of Mayotte; Indicator; PAMPA.
Ano: 2016 URL: http://archimer.ifremer.fr/doc/00373/48422/48643.pdf
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The role of mangrove in the French Guiana shrimp fishery ArchiMer
Diop, Bassirou; Sanz, Nicolas; Blanchard, Fabian; Walcker, Romain; Gardel, Antoine.
This paper investigates the role of mangrove as an habitat in the evolution of the French Guiana shrimp stock to explain the recent collapse of shrimp production. To achieve our aim, we use the open access fishery model developed by Barbier and Strand [1998. “Valuing Mangrove-Fishery Linkages-A Case Study of Campeche, Mexico.” Environmental and Resource Economics 12: 151–166] and integrate mangrove surface into the shrimp natural growth function. This enables to account directly for the effects of mangrove surface changes on the stock dynamics and thus production. Our results indicate that financial losses in the French Guiana shrimp fishery increase when mangrove surface decreases and are mitigated when mangrove surface increases. We show that changes in...
Tipo: Text Palavras-chave: Shrimp fishery; Mangrove; Habitat; Production function; Open access.
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00458/56936/59376.pdf
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Natural history and conservation of the rediscovered Hula painted frog, Latonia nigriventer Naturalis
Bina Perl, R.G.; Gafny, S.; Malka, Y.; Renan, S.; Woodhams, D.C.; Rollins-Smith, L.; Pask, J.D.; Bletz, M.C.; Geffen, E.; Vences, M..
Dramatic global amphibian declines have recently led to an increased concern for many species of this animal class. The enigmatic Hula painted frog (Latonia nigriventer), the first amphibian to be declared extinct but unexpectedly rediscovered in 2011, has remained one of the rarest and most poorly understood amphibians worldwide. Gathering basic biological information on this species, along with an understanding of its disease-related threats remains fundamental for developing risk assessments and conservation strategies. Our surveys in recent years confirmed that L. nigriventer is a localised species with elusive habits. The species appears to follow an opportunistic breeding phenology and has a tadpole morphology similar to its well-studied sister group...
Tipo: Article / Letter to the editor Palavras-chave: Amphibia; Antimicrobial peptides; Anura; Batrachochytrium dendrobatidis; Habitat; Skin microbiota; Tadpole.
Ano: 2017 URL: http://www.repository.naturalis.nl/record/623831
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Verspreiding en habitat van de zeggekorfslak Vertigo moulinsiana in Zuid-Holland Naturalis
Boesveld, A.; Kalkman, V.J..
In 2005 werd onverwachts de zeggekorfslak op twee plaatsen in Zuid-Holland aangetroffen (Boesveld, 2005). De zeggekorfslak staat op de Habitatrichtlijn en geniet wettelijke bescherming. Om hieraan invulling te kunnen geven is het voor de provincie Zuid-Holland van belang om goede informatie over de verspreiding, biotoopkeuze en beheer van deze soort te hebben. In 2006 heeft de provincie daarom aan EIS-Nederland de opdracht gegeven om het voorkomen van de soort in de provincie in kaart te brengen. Tijdens het in 2006 uitgevoerde veldwerk is V. moulinsiana in totaal in negen (deel)gebieden aangetroffen: Nieuwkoopse plassen, Kagerplassen, Braassemermeer en Wijde Aa, Rotte, Hennipsloot en Lange Vaart, Vlietlanden, Kinderdijk, Groote- of Achterwaterschap en...
Tipo: Book (monograph) Palavras-chave: Vertigo moulinsiana; Zeggekorfslak; Habitat; Verspreiding; 42.73.
Ano: 2007 URL: http://www.repository.naturalis.nl/record/226914
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Variation in the nocturnal foraging distribution of and resource use by endangered Ryukyu flying foxes (Pteropus dasymallus) on Iriomotejima Island, Japan Naturalis
Lee, Y.-F.; Takaso, T.; Chiang, T.-Y.; Kuo, Y.-M.; Nakanishi, N.; Tzeng, H.-Y.; Yasuda, K..
The nocturnal distribution and resource use by Ryukyu flying foxes was studied along 28 transects, covering five types of habitats, on Iriomote Island, Japan, from early June to late September, 2005. Bats were mostly encountered solitarily (66.8%) or in pairs (16.8%), with a mean linear density of 2.5 ± 0.6 bats/km of transect/night. Across the island, however, bat densities were distributed non-randomly among transect-nights, not correlated with transect length, and showed a slightly clumped distribution (variance/mean = 3.3). Outskirt trails contributed higher values to the relative importance of bat abundance, but the highest mean abundances occurred mostly at village sites on the west coast, which on average devoted only a quarter of their land area to...
Tipo: Article / Letter to the editor Palavras-chave: Abundance; Bats; Chiroptera; Diet; Figs; Frugivores; Habitat; 42.84.
Ano: 2009 URL: http://www.repository.naturalis.nl/record/311809
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Trends in dragonfly occurrence in Belgium (Odonata) Naturalis
Knijf, G. de; Anselin, A.; Goffart, P..
Trends in dragonfly occurrence in Belgium (Odonata) The group ‘Gomphus’ collected 65 000 records of 69 species of Odonata, more or less equally scattered over Belgium. The best-investigated areas are the northern part and some river valleys in the south. Most hot spots can be found in the northeastern part, with a maximum of 48 species for 25 km². Remarkable is the fact that 50% of the species occurs in less than 7% of the 5 km grid cells (UTM). We determined trends in occurrence by comparing three periods: before 1950, 1950-1989 and 1990-2000. Four species show a clear decline over the three periods, eight species give evidence of a historical decline but survive on a limited number of sites and eight species also display a historical decline but have...
Tipo: Article in monograph or in proceedings Palavras-chave: Odonata; Dragonflies; Belgium; Atlas; Hot spot; Abundance class shift; Habitat; 42.75.
Ano: 2003 URL: http://www.repository.naturalis.nl/record/219852
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A new species of Atractus (Reptilia: Ophidia: Colubridae: Dipsadinae) from the Amazon forest region in Brazil Naturalis
Hoogmoed, M.S.; Prudente, A.L.C..
Three specimens of Atractus natans were found during fieldwork in the “Reserva Mamirauá”, Amazonas and a fourth one in the “Estação Científica Ferreira Penna”, Floresta de Caxiuanã, Pará, Brazil. The specimens from Mamirauá were all collected in floating logs in várzea forest during the period of flooding. The new species is small (maximum total length 308 mm) with a coniform head, has 17-17-17 smooth dorsals, without apical pits, male lacking pre-anal keels, ventrals 136-162, caudals 19-25, anal undivided. One or two postoculars, loreal 1.6 –2.8 times as long as high, frontal triangular, wider than long. Maxillary teeth 5-6. The hemipenis is bilobed, with bifurcated sulcus spematicus, capitulum with calyces covered by very small spines, body covered by...
Tipo: Article / Letter to the editor Palavras-chave: Reptilia; Colubridae; Atractus; Spec. nov.; Brazil; Amazonia; Mamirauá; Caxiuanã; Habitat; Várzea; 42.82.
Ano: 2003 URL: http://www.repository.naturalis.nl/record/216162
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Body condition and energy density of juvenile streaked prochilod Prochilodus lineatus (Valenciennes, 1837) in a Neotropical floodplain Neotropical Ichthyology
Corbetta,Daiany de Fátima; Veronezzi,Ana Lúcia; Benedito,Evanilde.
ABSTRACT Variations in energetic density (E D ) and the relative condition factor (K n ) of juveniles of Prochilodus lineatus were investigated to identify whether these two variables respond similarly to environmental factors. We hypothesized that fluviometric levels in different sub-basins of the Upper Paraná River floodplain positively influence the E D and K n of juvenile fish. Temporally, the values of E D and K n were linked more directly to the dynamics of the flood pulses on the plain. Spatially, the lowest values of E D and K n were observed in the environment that was directly affected by the operation of dams, the sub-basin Paraná. Although the energy density and condition factor did not show similar results for juveniles in some of the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Condition Factor; Food web; Habitat; Impact; Paraná basin.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252016000400201
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Variation in energy density of Loricariichthys platymetopon (Siluriformes: Loricariidae) in the upper Paraná River basin Neotropical Ichthyology
Garcia,Daniela Aparecida; Benedito,Evanilde.
The present study described the variations in energy density from skeletal muscles of Loricariichthys platymetopon in relation to body size, sex, gonadal development stages, sampling site and habitat type (lotic, semi-lotic and lotic). Samplings were performed between June 2002 and August 2006 in points located in the upper Paraná River floodplain, Rosana Reservoir and Diamante Stream. The energy density from each muscle sample of 212 specimens was determined using an adiabatic calorimeter. The correlations between the variables 'muscle energy density' and 'specimen standard length' were not significant. Only in the Rosana Reservoir there was a significant difference in energetic means between 'sex'. Otherwise, due to the gonadal development stage, a...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Calorimetry; Detritivorous fish; Body size; Gonadal maturation; Habitat.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252010000200010
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