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	Provedor de dados ArchiMer (1) Autor Benmansour, Abdenour (1) Bourgougnon, Nathalie (1) Olicard, Cecile (1) Renault, Tristan (1) Torhy, Corinne (1) Palavra-chave Antiviral defense (1) Crassosirea gigas (1) HSV (1) Hemolymph (1) IPNV (1) Oyster (1) VHSV (1) Mais... Tipo do documento Text (1) Ano 2005 (1) País France (1) Idioma Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 157 Primeira ... 1 2 3 4 5 6 7 8 ... Última Predictive distribution maps of rodent reservoir species of zoonoses in Southern America Mastozool. neotrop. Porcasi,Ximena; Calderón,Gladys E.; Lamfri,Mario; Scavuzzo,Marcelo; Sabattini,Marta S.; Polop,Jaime J.. We model potential distribution for three species of rodents known to be reservoirs of zoonotic diseases: Calomys musculinus, Oligoryzomys flavescens and O. longicaudatus. These models provide general distribution hypotheses obtained using environmental data from record localities. Satellite remote sensing is then used to extrapolate climatic and ecological features of potentially suitable habitats for these rodents. In the three species mapped, we found high overall correspondence between predicted (based on environmental data) and specimen based distributions. The maps proposed here provide several advantages over dot and shaded outline maps. First, the predictive maps incorporate geographically explicit predictions of potential distribution into the... Tipo: Info:eu-repo/semantics/article Palavras-chave: Environmental factors; Geographic distribution; Rodent reservoirs. Ano: 2005 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-93832005000200007 Impact of climate and moonlight on a venomous mammal, the Javan slow loris (Nycticebus javanicus Geoffroy, 1812) Naturalis Rode-Margono, E.J.; Nekaris, K.A.-I.. Predation pressure, food availability, and activity may be affected by level of moonlight and climatic conditions. While many nocturnal mammals reduce activity at high lunar illumination to avoid predators (lunarphobia), most visually-oriented nocturnal primates and birds increase activity in bright nights (lunarphilia) to improve foraging efficiency. Similarly, weather conditions may influence activity level and foraging ability. We examined the response of Javan slow lorises (Nycticebus javanicus Geoffroy, 1812) to moonlight and temperature. We radio-tracked 12 animals in West Java, Indonesia, over 1.5 years, resulting in over 600 hours direct observations. We collected behavioural and environmental data including lunar illumination, number of human... Tipo: Article / Letter to the editor Palavras-chave: Activity; Environmental factors; Humidity; Lunarphobia; Moon; Predation; Temperature; 42.84. Ano: 2014 URL: http://www.repository.naturalis.nl/record/499291 Environmental factors related to entry into and ascent of fish in the experimental ladder located close to Itaipu Dam Neotropical Ichthyology Fernandez,Domingo Rodrigues; Agostinho,Angelo Antonio; Bini,Luis Maurício; Gomes,Luiz Carlos. We evaluated the seasonality of the ascent of fish in an experimental ladder located close to Itaipu Dam, and its relationships to reproduction, temperature, river level and discharge. Samplings of fish and measurements of abiotic factors were performed from February, 1995 through January, 1997, in two resting pools of the ladder. Pool A was located 10 m above the mean level of the Paraná River; Pool B was located at the upper end of the ladder, at a height of 27 m. Autoregressive models were used to remove the temporal dependence between observations. Residuals of the models were used to relate, using Pearson's correlation coefficient, the densities of fish to the environmental variables. Clear patterns of seasonality were observed for temperature. River... Tipo: Info:eu-repo/semantics/article Palavras-chave: Fish ladder; Fish migration; Environmental factors; Paraná River. Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252007000200009 Environmental factors predicting fish community structure in two neotropical rivers in Brazil Neotropical Ichthyology Súarez,Yzel Rondon; Petrere Júnior,Miguel. In order to assess the organization patterns of the fish communities in the Jogui and Iguatemi rivers, we collected fish with gill nets tri-monthly from November 1999 to August 2000. Hypostomus ancistroides and Parauchenipterus galeatus were the most abundant species in the Jogui and Iguatemi rivers, respectively. Longitudinal variation was more important than seasonal in determining the species composition in both rivers, and the difference between seasons was not statistically significant. Altitude was the most important factor determining species distribution. Tipo: Info:eu-repo/semantics/article Palavras-chave: Community ecology; Freshwater fish; Environmental factors; Neotropical rivers. Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252007000100008 Impact des perturbations anthropiques sur l'évolution du phytoplancton de la lagune de Boughrara, ( tunisie ) OceanDocs Romdhane, M.S.; Ben Rejeb-Jenhani, A.. La détérioration de la qualité des eaux de la lagune de Boughrara, conséquence de divers apports polluants et d’échanges d’eaux limités avec la mer, s’est traduite par un accroissement sévère de l’eutrophisation du milieu se manifestant notamment par d’importantes proliférations microalgales. L’analyse de l’évolution de l’ensemble des groupes phytoplanctoniques a montré que les périodes de forte biomasse algale sont caractérisées par des développements monospécifiques. L’importance relative croissante de la classe des dinoflagellés se manifestent par un net accroissement du rapport dinoflagellés / diatomées. Le très fort développement de l’espèce Gymnodinium cf nagasakiense , (densités maximales de l’ordre de 6.10 6 cellules par litre ) espèce connue... Tipo: Journal Contribution Palavras-chave: Diatoms; Environmental factors; Lagoons; Phytoplankton; Geographical distribution. Ano: 2002 URL: http://hdl.handle.net/1834/236 Variación espacio-temporal de grupos morfo-funcionales de macroalgas en pastos marinos al norte de Ciego de Ávila, Cuba OceanDocs Avila Alonso, D.; Guimaraes Bermejo, M.; Cárdenas Ortiz, R.. Se determinó la variación espacio-temporal de la biomasa de los grupos morfo-funcionales de macroalgas y su relación con las variables ambientales: temperatura, salinidad, oxígeno disuelto y precipitaciones en dos localidades (laguna y playa) de pastizales al Norte de Ciego de Ávila desde marzo de 2010 a febrero de 2011. Las colectas se realizaron utilizando marco cuadrado de 25 cm de lado y se tomaron 15 unidades de muestreo en cada sitio. Se determinaron cinco grupos morfo- funcionales: foliosas y globosas, coriáceas, filamentosas, corticadas y calcáreas articuladas, presentando variaciones espacio- temporales los dos últimos. La laguna tuvo menor diversidad algal (13 géneros) y mayor biomasa total determinado por el aporte de las calcáreas... Tipo: Journal Contribution Palavras-chave: Biomass; Morphometric analysis; Algae; Seagrass; Environmental factors. Ano: 2013 URL: http://hdl.handle.net/1834/4929 Estudio de la morfometría de las sagittae en poblaciones de sciaenidos marinos de aguas cálidas del Perú y aguas templado-frías de Argentina OceanDocs Volpedo, A.. Otoliths (sagitta, asteriscus and lapillus)are complex structures composed of calcium carbonate, other minerals, and a protein matrix. Otoliths are located in the internal ear of the teleost fishes. The shape and structure of otoliths are specific for each species. For this reason, otoliths are used to identify species in biological and ecological studies.Sciaenids conform a group of fishes of commercial importance, so the handling of this resource is a high-priority topic for the local and national economies of countries that exploit these species. The purpose of this work is to study different aspects of the sagittae of marine sciaenids from Argentina and Peru. The morphology, morphometry and chemical composition has been analyzed in relation to the... Tipo: Theses and Dissertations Palavras-chave: Otoliths; Morphometry; Identification keys; Indicator species; Dimensions; Trace metals; Environmental factors; Stocks; Coastal fisheries; Otoliths; Dimensions; Environmental factors; Stocks; Indicator species; Coastal fisheries; Http://aims.fao.org/aos/agrovoc/c_27091; Http://aims.fao.org/aos/agrovoc/c_2283; Http://aims.fao.org/aos/agrovoc/c_2594; Http://aims.fao.org/aos/agrovoc/c_28772; Http://aims.fao.org/aos/agrovoc/c_35790; Http://aims.fao.org/aos/agrovoc/c_1696. Ano: 2001 URL: http://hdl.handle.net/1834/3132 Estimación del oxígeno disuelto en el Golfo de Batabano OceanDocs Simanca, J.; Arriaza, L.. This work, it is applied a unidirectional and stationary model for estimating the dissolved oxygen distribution in the area of the Gulf of Batabanó, starting from the influence of physical-biological parameters (marine currents, temperature, salinity, photosynthesis and respiration). In this first approach, estimates of the dissolved oxygen concentration are obtained for Ensenada de la Broa, with an error of 0.2693 mg/L, while for the rest of the Gulf the estimate error oscillated between -4.13 y -4.69 mg/L. Consequently, it is concluded that the pattern is efficient for the estimate of dissolved oxygen concentration in Ensenada de La Broa, while for the rest of the Gulf it is not enough the consideration of primary production in the water column as only... Tipo: Conference Material Palavras-chave: Dissolved oxygen; Water quality; Environmental factors; Dissolved oxygen; Water quality; Environmental factors; Http://aims.fao.org/aos/agrovoc/c_36106; Http://aims.fao.org/aos/agrovoc/c_16061; Http://aims.fao.org/aos/agrovoc/c_2594. Ano: 2006 URL: http://hdl.handle.net/1834/2227 Distribución de los foraminíferos bentónicos del Golfo de Guayaquil interior y su relación con algunos factores ambientales OceanDocs Gualancañay, E.. En la presente investigación se realiza el estudio de algunos factores ambientales: salinidad del agua superficial, turbidez, sedimentos y pH del sedimento, relacionados con las especies de foraminíferos bentónicos identificadas en el Golfo de Guayaquil, durante marzo y septiembre de 1988. Igualmente se realiza la distribución relativa de cada una de las especies halladas en el área. Tipo: Journal Contribution Palavras-chave: Distribution; Foraminifera; Environmental factors; Distribution; Environmental factors; Http://aims.fao.org/aos/agrovoc/c_35773; Http://aims.fao.org/aos/agrovoc/c_2594. Ano: 1989 URL: http://hdl.handle.net/1834/2151 Identificación y evaluación de los impactos ambientales en las zonas de plataforma marino costera I, II y III. Zonas de Gestión I y II. OceanDocs Rivas-Rodríguez, L.; Martínez-Iglesias, J. C.; Sánchez-Noda, R.; Areces-Mallea, A. J.; Rodríguez-Quintana, Y.. Conocer como el hombre ha impactado las zonas de plataforma marino costera I, II y III, es el principal objetivo del presente trabajo. Se inventariaron y evaluaron un total de 382 impactos, de ellos 302 eran negativos, 74 positivos y 6 neutros. Dichos impactos estaban recogidos en 11 Estudios de Evaluación de Impacto Ambiental. Es importante aclarar que los resultados obtenidos se restringen solo a la información contenida en estos estudios. Para la evaluación se empleó la Matriz de Evaluación Rápida de Impactos Ambientales (RIAM). Los resultados permitieron establecer que los impactos ambientales negativos residuales más importantes fueron: afectación a la fauna, a los ecosistemas marino – costeros, al suelo, al hábitat natural, a las aguas... Tipo: Journal Contribution Palavras-chave: Environmental impact; Environmental factors; Environmental impact; Environmental factors; Http://aims.fao.org/aos/agrovoc/c_24420; Http://aims.fao.org/aos/agrovoc/c_2594. Ano: 2011 URL: http://hdl.handle.net/1834/4056 Dinámica del ultrafitoplancton en el Mar Argentino OceanDocs Silva, R.I.. Ultraphytoplankton is composed by a group of organisms phylogenetically diverse, which contribute significantly to the total biomass and primary production in different oceanic and coastal pelagic systems. The success of ultraphytoplankton is attributed to its high efficiency in capturing light and nutrients, due to their small cell size and low sinking rate. The community structure is driven by the interaction among biotic and abiotic variables, such as temperature, nutrients, light and predators. The objective of this work was to assess the ecological importance of ultraphytoplankton organisms at the EPEA station, situated in the Buenos Aires coastal pelagic system (Argentina, SW Atlantic), during the period 2000-2009. In particular, ultraphytoplankton... Tipo: Theses and Dissertations Palavras-chave: Phytoplankton; Seasonal variations; Environmental factors; Community composition; Biomass; EPEA; Marine environment. Ano: 2011 URL: http://hdl.handle.net/1834/4504 Variations saisonnières des facteurs hydrologiques et du biovolume microalgal benthique au sein d'un habitat artificiel (Acadja-enclos) dans la lagune Ebrié: site d'Adiapoté OceanDocs Konan-Brou, Amoin Annabelle. Cet article présente les résultats d'une étude comparative des caractéristiques physico-chimiques (température, turbidité, salinité, pH, concentration en O2 dissous, en phosphates, nitrates, nitrites, ammoniaque)au sein d'une structure d'aquaculture extensive (acadja-enclos)ou habitat artificiel pour poissons et dans l'eau libre environnante. Les caractéristiques du périphyton se développant sur les bambous de l'acadja-enclos sont décrites. L'acadja-enclos est implanté dans le site d'Adiopoté en milieu lagunaire peu profond (1.5 à 2m) et sous influence marine. L'étude a été conduite de novembre 1988 à décembre 1989. La température (25 à 31°C), les concentrations en oxygène dissous (3.8 à 7.2mgl-1); la salinité (1 à 27%0) et le pH (6.7 à 8.6) ont les mêmes... Tipo: Journal Contribution Palavras-chave: Seasonal variations; Environmental factors. Ano: 1993 URL: http://hdl.handle.net/1834/5729 Influencia ambiental en la distribución espacial de las clases de edad de pez palo (Percophis brasiliensis) en el Sistema Costero del Atlántico Sudoccidental (34°-41° S) OceanDocs Barretto, A.C.. The age-class distribution of the Brazilian flathead Percophis brasiliensis in relation to environmental variables in spring and winter, and the growth of both sexes, were studied in the SW Atlantic Coastal System (SACS)(34°S-31° S). Growth was studied from 1449 individuals (n=853, spring (1998 + 2000), n=596, winter (2004)) to which size (TL), sex, and age were determined. Age was determined considering that an opaque plus a hyaline band (present in the transverse section of the sagitta otolith) represented 1 year of life. The age-class distribution in spring and winter was established through hierarchical clustering and non-metric multi-dimensional scaling (nMDS analysis). This analysis grouped sampling stations (n=109, spring 1998; n=160, winter 2004)... Tipo: Theses and Dissertations Palavras-chave: Age groups; Age composition; Environmental factors; Geographical distribution; Population structure; Growth; Environmental effects; Coastal waters; Age composition; Environmental factors; Geographical distribution; Population structure; Growth; Age groups; Coastal waters; Http://aims.fao.org/aos/agrovoc/c_29093; Http://aims.fao.org/aos/agrovoc/c_2594; Http://aims.fao.org/aos/agrovoc/c_5083; Http://aims.fao.org/aos/agrovoc/c_6115; Http://aims.fao.org/aos/agrovoc/c_3394; Http://aims.fao.org/aos/agrovoc/c_28628; Http://aims.fao.org/aos/agrovoc/c_25205. Ano: 2007 URL: http://hdl.handle.net/1834/3017 Estructura de las praderas de Thalassia testudinum en un gradiente de profundidad en la Guajira, Caribe colombiano OceanDocs Gómez-López, D.I.; Albis-Salas, M.R.; Duque-Nivia, G.. La distribución espacial de los pastos marinos depende de las condiciones ambientales presentes, destacándose la profundidad, temperatura, salinidad, sustrato y nutrientes. La plataforma continental de La Guajira presenta extensas praderas de pastos marinos dominadas por Thalassia testudinum, las cuales representan más del 80 % del total nacional. Con el fin de caracterizar su distribución en función de la profundidad, materia orgánica y tipo de sustrato, se midieron algunas variables estructurales de T. testudinum en 15 estaciones situadas en uno de los tres siguientes intervalos de profundidad: somero (0-2 m), medio (2-4 m) y profundo (>4 m). Mediante cuadrantes de 20 x 20 cm se determinó la densidad de vástagos,... Tipo: Journal Contribution Palavras-chave: Environmental factors; Sea grass; Environmental factors; Http://aims.fao.org/aos/agrovoc/c_2594. Ano: 2010 URL: http://hdl.handle.net/1834/4023 La comunidad bentónica intermareal de Brachidontes rodriguezii (D'Orb.) y su relación con el efluente cloacal de la ciudad de Mar del Plata (38° S) OceanDocs Vallarino, E.A.. El mitílido Brachidontes rodriguezii es el organismo estructurante de una compleja comunidad intermareal que se desarrolla sobre los sustratos intermareales duros (cuarcíticos y limo- loessoides), en el sudeste de la provincia de Buenos Aires (Argentina). El presente estudio se desarrolló durante los años 1997, 1998, 1999 y 2000, en áreas costeras de los alrededores de Mar del Plata (Camet); Santa Clara del Mar (Santa Elena) y en Mar de Cobo. Se determinaron cuatro estaciones de muestreo en la zona de Camet (área impactada) y dos áreas control en Santa Elena y Mar de Cobo. En cada muestreo se tomaron muestras biológicas, de sedimento retenido y de Materia orgánica, así como de las variables ambientales: temperatura, salinidad, oxígeno disuelto, turbidez y... Tipo: Theses and Dissertations Palavras-chave: Intertidal environment; Biological sampling; Environmental factors; Pollution effects; Spatial variations; Seasonal variations; Biomass; Intertidal environment; Environmental factors; Biomass. Ano: 2002 URL: http://hdl.handle.net/1834/2955 Foraminíferos bentónicos de Salinas, Ecuador y su relación con el medio OceanDocs Gualancañay, E.. Salinas por su posición en la península de Santa Elena está situada en el límite noroeste del Golfo de Guayaquil y, debido a que la línea costanera se curva hacia el noroeste y se coloca por ello fuera de la acción de la corriente de Humboldt, aumenta progresivamente la precipitación hacia el norte (PMRC, 1995). Se realiza el estudio de las especies de foraminíferos bentónicos del área de Salinas y se hace la relación de las especies más frecuentes: Elphidium articulatum, f, typica; reophax cf. guttiferus; Rotalia cubensis y Textularia secasensis con los factores ambientales: salinidad, temperatura, pH, oxígeno, profundidad, turbidez, alimentación y sustrato. Tipo: Journal Contribution Palavras-chave: Foraminifera; Benthos; Environmental factors; Geographical distribution; Benthos; Environmental factors; Geographical distribution; Http://aims.fao.org/aos/agrovoc/c_878; Http://aims.fao.org/aos/agrovoc/c_2594; Http://aims.fao.org/aos/agrovoc/c_5083. Ano: 2000 URL: http://hdl.handle.net/1834/2290 Patrones de utilización de la laguna Mar Chiquita (Buenos Aires, Argentina) y área costera adyacente por parte de los primeros estadios ontogénicos de peces OceanDocs Bruno, Daniel O.. The role of the Mar Chiquita lagoon and its adjacent coastal area as nursery ground for fish larvae and juveniles and the factors which regulate their recruitment process, was evaluated. To do so, we analyzed the fish early life stages composition and spatio-temporal variation over the marine-estuarine gradient of the lagoon and its relationship with environmental factors; the diel variation of these stages in the immediate area at the mouth of the lagoon; and the source of the organic carbon which feed them on the mouth of the lagoon and adjacent coastal area, by using stable isotope analysis. The richness and mean density of larvae were higher at the offshore area than at the lagoon. Inside the lagoon the dominant species in larval stage was Brevoortia... Tipo: Theses and Dissertations Palavras-chave: Brackishwater fish; Fish larvae; Juveniles; Recruitment; Life cycle; Environmental factors; Abundance; Brackishwater environment; Coastal lagoons; Brevoortia aurea; Gobiosoma parri; Platanichthys platana; Ramnogaster arcuata; Odontesthes argentinensis; Engraulidae; Brackishwater environment. Ano: 2014 URL: http://hdl.handle.net/1834/5819 Les larves de poissons téléostéens le long des côtes Est tunisiennes : distribution et abondance OceanDocs Kochedi, W.; Hattour, A.; Said, K.. Une campagne de prospection planctonique à été réalisée entre le 24 juin et le 7 juillet 2008 au large des côtes Est de la Tunisie depuis le Cap bon jusqu’à Ras Kapoudia. Les objectifs de cette campagne consistaient à étudier l’assemblage larvaire des poissons téléostéens et d’évaluer l’influence des facteurs environnementaux sur leur distribution spatiale. Au total 10832 larves ont été identifiées appartenant à 46 taxons. La distribution spatiale des larves a montré une grande variabilité interspécifique. En effet, plusieurs facteurs sont intervenus dans leur distribution. Nous citons en premier lieu la circulation complexe des masses d’eaux, qui est responsable de la répartition des larves bien éloignées des aires de ponte. Le gradient de la profondeur... Tipo: Journal Contribution Palavras-chave: Fish larvae; Environmental factors; Spatial distribution. Ano: 2011 URL: http://hdl.handle.net/1834/4692 Contribución al estudio de los quetognatos alrededor de las Islas Galápagos OceanDocs Naranjo, Ch.. El presente estudio tiene como labor fundamental conocer la distribución cuantitativa de las especies de quetognatos y su relación con factores como la temperatura, salinidad y establecer áreas de alta productividad en las Islas Galápagos con la presencia de especies bio-indicadoras de afloramiento. Tipo: Journal Contribution Palavras-chave: Indicator species; Upwelling; Zooplankton; Marine invertebrates; Population density; Environmental factors; Zooplankton; Environmental factors; Indicator species; Population density; Http://aims.fao.org/aos/agrovoc/c_15490; Http://aims.fao.org/aos/agrovoc/c_2594; Http://aims.fao.org/aos/agrovoc/c_35790; Http://aims.fao.org/aos/agrovoc/c_6112. Ano: 2000 URL: http://hdl.handle.net/1834/2223 Estudio de los poliquetos (Gusanos marinos) en la zona intermareal y submareal de la Bahía de Manta (Ecuador), y su relación con algunos factores ambientales, durante marzo y agosto del 2011 OceanDocs Villamar, F.. As a result of taxonomic analysis and the abundance of benthic polychaetes abtained from the subtidal area in five profiles with 15 stations at depths between 3 and 23 m. in Manta Bay, eight species were identified in march, the most abundant one being Cossura brunnea of the Cossuridae family. Eight species were identified in august, represented by the most abundant species, Paraonis gracilis from the Paraonidae family. For the intertidal zone, five profiles in five different areas were analyzed, using techniques recommended by Roger J. Lincoln & Gordon Sheals (1979). Two species were identified in march and four in august, with the most frquent and abundant species being Anaitides madeirensis of the Phyllodocidae family in both seasons of the year.... Tipo: Journal Contribution Palavras-chave: Benthos; Taxonomy; Species diversity; Seasons; Environmental factors. Ano: 2013 URL: http://hdl.handle.net/1834/5756 Registros recuperados: 157 Primeira ... 1 2 3 4 5 6 7 8 ... Última

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