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Registros recuperados: 12
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Analyse spatio-temporelle de l'exploitation des trois stades de développement de Ethmalosa fimbriata dans la baie de Biafra (Cameroun) IRD
Njifonjou, O.; Simier, Monique; Laloë, Francis.
Tipo: Text Palavras-chave: PECHE ARTISANALE; COLLECTE DE DONNEES; SYSTEME D'EXPLOITATION; CYCLE DE DEVELOPPEMENT.
Ano: 2000 URL: http://www.documentation.ird.fr/hor/fdi:010024521
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Approche simultanée de K couples de tableaux IRD
Simier, Monique; Hanafi, M.; Chessel, D..
Tipo: Text Palavras-chave: ECOLOGIE; FAUNE; ABONDANCE; ECOTOPE; ANALYSE STATISTIQUE; METHODOLOGIE; METHODE STATICO.
Ano: 1996 URL: http://www.documentation.ird.fr/hor/fdi:010005807
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Cycle biologique du poulpe (Octopus vulgaris) au large du Cap-Blanc (Mauritanie) IRD
Jouffre, Didier; Inejih, C.; Simier, Monique.
Le poulpe commun (#Octopus vulgaris$) est très abondant au large des côtes NO-africaines où il est exploité à grande échelle. En Mauritanie, il représente la principale ressource halieutique grâce à la production de la zone de pêche du Cap-Blanc. Les caractéristiques globales de répartition spatio-temporelle de la population d'#Octopus vulgaris$ présent dans cette zone (20°30 N, nord de la Mauritanie) sont décrites à partir de données de chalutages scientifiques réalisés au cours de 24 campagnes mensuelles effectuées de mai 1993 à avril 1995. On constate que des poulpes de différents sexes, tailles (âges) et stades de maturité sont présents, quel que soit le mois et quelle que soit la profondeur (entre 10 et 100 m). Des phénomènes cycliques existent...
Tipo: Text Palavras-chave: RESSOURCES HALIEUTIQUES; PECHE DE MOLLUSQUES; CYCLE DE DEVELOPPEMENT; DYNAMIQUE DE POPULATION; CAMPAGNE OCEANOGRAPHIQUE; ECHANTILLONNAGE; ANALYSE STATISTIQUE; VARIATION SAISONNIERE; CYCLE DE REPRODUCTION; BATHYMETRIE; MIGRATION REPRODUCTRICE; ZONE BATHYPELAGIQUE; POULPE.
Ano: 2000 URL: http://www.documentation.ird.fr/hor/fdi:010024498
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Formation statistique au modèle linéraire général IRD
Laloë, Francis; Simier, Monique.
Tipo: Text Palavras-chave: MODELE MATHEMATIQUE; STATISTIQUE PARAMETRIQUE; METHODE D'ANALYSE; ANALYSE DE VARIANCE; ENSEIGNEMENT; METHODOLOGIE; MODELE LINEAIRE GENERAL.
Ano: 1995 URL: http://www.documentation.ird.fr/hor/fdi:010031667
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Homologie d'évolution de peuplements benthiques soumis aux épandages d'insecticides antisimulidiens IRD
Elouard, Jean-Marc; Yameogo, L.; Simier, Monique.
Tipo: Text Palavras-chave: INSECTE NUISIBLE; LUTTE CHIMIQUE; INSECTICIDE; TOXICITE; FAUNE BENTHIQUE; COURS D'EAU; ABONDANCE; SURVEILLANCE; ETUDE D'IMPACT; MODELISATION; ABATE; CHLORPHOXIME; BACILLUS THURINGIENSIS.
Ano: 1991 URL: http://www.documentation.ird.fr/hor/fdi:010021227
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Les bases de données : outils de stockage et d'exploitation des échantillonnages piscicoles IRD
Sanlaville-Boisson, C.; Olivier, J.M.; Simier, Monique; Changeux, T.; Poizat, G.; Torre, F.; Belliard, J..
L'étude des relations espèces-environnement à différentes échelles d'espace et de temps impose la manipulation de grands volumes de données et la confrontation de différents types d'informations (biologiques et environnementales). Afin d'optimiser la gestion informatique des données écologiques, plusieurs bases de données (correspondant à des données de structures différentes) ont été élaborées sur micro-ordinateur en utilisant des systèmes de gestion de bases de données différents autour desquels ont été développées des applications spécifiques destinées à faciliter et compléter la gestion de l'information, depuis la saisie des données jusqu'à l'obtention des tableaux à analyser. (Résumé d'auteur)
Tipo: Text Palavras-chave: POISSON D'EAU DOUCE; STRUCTURE DU PEUPLEMENT; COURS D'EAU; TRAITEMENT DE DONNEES; MODELE; INFORMATIQUE SCIENTIFIQUE; SGBD; RELATION ESPECE ENVIRONNEMENT.
Ano: 1995 URL: http://www.documentation.ird.fr/hor/fdi:010005241
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Modèles linéaires généraux et capacité de représentation IRD
Laloë, Francis; Pech, Nicolas; Simier, Monique.
Tipo: Text Palavras-chave: ANALYSE STATISTIQUE; MODELISATION; DISTRIBUTION STATISTIQUE; ANALYSE DE REGRESSION; MODELE LINEAIRE.
Ano: 1996 URL: http://www.documentation.ird.fr/hor/fdi:010009626
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Recovery trajectories following the reduction of urban nutrient inputs along the eutrophication gradient in French Mediterranean lagoons ArchiMer
Derolez, Valerie; Bec, Beatrice; Munaron, Dominique; Fiandrino, Annie; Pete, Romain; Simier, Monique; Souchu, Philippe; Laugier, Thierry; Aliaume, Catherine; Malet, Nathalie.
Tipo: Text Palavras-chave: Recovery; Oligotrophication; Coastal lagoons; Urban inputs; Nutrients.
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00478/58953/61574.pdf
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Re-oligotrophication trajectories of macrophyte assemblages in Mediterranean coastal lagoons based on 17-year time-series ArchiMer
Le Fur, Ines; De Wit, Rutger; Plus, Martin; Oheix, Jocelyne; Derolez, Valerie; Simier, Monique; Malet, Nathalie; Ouisse, Vincent.
Since the mid-20th century, Mediterranean lagoons have been affected by eutrophication, leading to significant changes in primary producers. In the early 2000s, management actions have been implemented to reduce nutrient inputs with the aim to achieve a good ecological status as requested by the EU water framework directive. As a result of these actions, a sharp decline in nutrient loads has been recorded in several lagoons leading to an oligotrophication of the water column. The analyses of a long-term data set (1998-2015) of 21 polyhaline and euhaline lagoons with contrasting trophic status allowed us to infer a general scheme for the changes in macrophyte assemblages during the oligotrophication process. Placing hypertrophic and oligotrophic conditions...
Tipo: Text Palavras-chave: Submerged aquatic vegetation; Recovery; Nutrient reduction; Restoration; Long-term data series; Resilience; Regime shift; Coastal lagoon.
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00474/58555/61110.pdf
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The PPEAO experimental fishing dataset: Fish from West African estuaries, lagoons and reservoirs ArchiMer
Simier, Monique; Ecoutin, Jean-marc; Tito De Morais, Luis.
Background This paper describes a dataset of fish, crustacean and mollusc occurrences extracted from the “Experimental Fishing” section of the IRD's PPEAO information system. PPEAO stands for “Fish communities and artisanal fisheries of West African estuarine, lagoon and freshwater ecosystems”. This database contains information collected using two different methods: experimental fishing and surveys of the artisanal fisheries that exploit these ecosystems. The database is accessible at http://ppeao.ird.fr. New information The current dataset is available on GBIF.org at 10.15468/ra4voa. It comprises the occurrences of 314 fish, crustacean and mollusc taxa collected in experimental sampling surveys of different aquatic ecosystems in West Africa between 1979...
Tipo: Text Palavras-chave: Coastal area; Crustacean; Estuary; Experimental fishing; Fish; Lagoon; Mollusc; Reservoir lake; Tropical area; West Africa.
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00482/59324/62086.pdf
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Typologies des entomocénoses benthiques soumises à des épandages d'insecticides antisimulidiens IRD
Yaméogo, L.; Elouard, Jean-Marc; Simier, Monique.
During the tests in gutters, five insecticides (B.t., Abate, chlorphoxin, carbosulfan and permethrin) employed by the Onchocerciasis Control Programme (OCP) have neither the same toxicity nor the same selectivity against for the principal aquatic taxa. In long run, the utilization of these insecticides led to dry season entomocenose structures characteristic for each product with differ from those observed during the pretreatment period. More the insecticides are estimed toxic in the gutter tests, more the long run typologies differ from the reference ones. The differences are slight for B.t., intermediate for Abate and of stronger magnitude for carbosulfan, chlorphoxim or permethrin. The populations of the taxa react differently to the insecticides; some...
Tipo: Text Palavras-chave: INSECTE AQUATIQUE; TEST; INSECTICIDE; STRUCTURE DU PEUPLEMENT; ANALYSE FACTORIELLE; TOXICITE.
Ano: 1991 URL: http://www.documentation.ird.fr/hor/fdi:35706
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Water temperature drives phytoplankton blooms in coastal waters ArchiMer
Trombetta, Thomas; Vidussi, Francesca; Mas, Sébastien; Parin, David; Simier, Monique; Mostajir, Behzad.
Phytoplankton blooms are an important, widespread phenomenon in open oceans, coastal waters and freshwaters, supporting food webs and essential ecosystem services. Blooms are even more important in exploited coastal waters for maintaining high resource production. However, the environmental factors driving blooms in shallow productive coastal waters are still unclear, making it difficult to assess how environmental fluctuations influence bloom phenology and productivity. To gain insights into bloom phenology, Chl a fluorescence and meteorological and hydrological parameters were monitored at high-frequency (15 min) and nutrient concentrations and phytoplankton abundance and diversity, were monitored weekly in a typical Mediterranean shallow coastal system...
Tipo: Text
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00488/60004/63240.pdf
Registros recuperados: 12
Primeira ... 1 ... Última
 

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