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	Provedor de dados 20 (20) 5 (13) 16 (1) 3 (1) 67 (1) 76 (1) 99 (1) Mais... Autor Cruz, M. (4) Tapia, M.E. (4) Torres, G. (3) Incorvaia, I.S. (2) Naranjo, Ch. (2) Afli, A. (1) Aissa, P. (1) Asher, J. (1) Benítez, R. (1) Beucher, M (1) Beyrem, H. (1) Bianchi, M (1) Bonnefond, A. (1) Bouamama, K. (1) Boufahja, F. (1) Brito, Cleyton Holanda de (1) Bru, Noelle (1) Burkhardt, W (1) Castañeda, P. (1) Charriere, G (1) Mais... Palavra-chave Indicator species (38) Http://aims.fao.org/aos/agrovoc/c_35790 (11) Bacteria (5) El Nino phenomena (5) Marine molluscs (5) Abundance (4) Phytoplankton (4) Chlorophylls (3) Cruises (3) Distribution (3) Microbial contamination (3) Pollution indicators (3) Water quality (3) Zooplankton (3) Bacterial counters (2) Biodiversity patterns (2) Biomass (2) Coastal waters (2) Diseases (2) Environmental factors (2) Mais... Tipo do documento Journal Contribution (16) Text (13) Info:eu-repo/semantics/article (4) Conference Material (2) Theses and Dissertations (2) Article in monograph or in proceedings (1) Mais... Ano 2020 (1) 2018 (2) 2017 (1) 2015 (1) 2010 (2) 2008 (1) 2007 (2) 2006 (8) 2003 (2) 2002 (3) 2001 (1) 2000 (3) 1998 (2) 1996 (1) 1992 (3) 1989 (1) 1985 (1) 1984 (3) Mais... País Belgium (20) France (13) Argentina (2) Brazil (2) Netherlands (1) Idioma Espanhol (17) Inglês (12) Francês (8)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 38 Primeira ... 1 2 ... Última Analyse bacteriologique de l'eau par mesure potentiometrique de la reduction de l'acide lipoique 5 Charriere, G; Jouenne, T; Junter, G. A simple potentiometric technique to detect and enumerate the bio-indicators of water contamination is described. The technique consists in measuring the redox potential of a specific culture medium saturated with oxygen where bacteria are incubated in presence of lipoic acid (LA). These micro-organisms reduce LA to dihydrolipoic acid, giving rise to an important potential drop in the system. This potentiometric "signal" reveals the presence of active metabolic bacteria in the medium. The major assets of potentiometric measurements in presence of LA lies in the reliability and intelligibility of the results (the redox phenomenon being qualitatively and quantitatively studied), associated to a very simple technology. Futhermore, this technique is perfectly... Tipo: Text Palavras-chave: Bacteria; Pollution indicators; Water quality; Microbial contamination; Indicator species; Pollution detection; Redox potential; Titration. Ano: 1984 URL: http://archimer.ifremer.fr/doc/1984/acte-1007.pdf Annelid assemblages in soft bottoms subjected to human impact in the Urias estuary (Sinaloa, Mexico) 5 Mendez, N. The annelid fauna inhabiting soft bottoms was analysed during February and April, 1997 in the Urfas estuary which is mostly surrounded by mangrove swamps, but is also subjected to the effect of several anthropogenic activities, Classification and ordination techniques were used to perform the characterisation of the system based on the annelid assemblages according to environmental variables (mainly organic matter content and percentage of mud). Three zones were found: (1) 'very polluted zone', in front of a slaughterhouse and a fish processing factory with a total lack of macrofauna due to the strong enrichment of the sediment in organic matters (2) 'polluted zones', characterised by the sporadic presence of oligochaetes in front of a domestic sewage... Tipo: Text Palavras-chave: Annélides; Fonds meubles; L'estuaire d'Urías; Écosystème perturbé; Espèces indicatrices; Annelids; Soft bottoms; Urias estuary; Ecosystem disturbances; Indicator species. Ano: 2002 URL: http://archimer.ifremer.fr/doc/00322/43315/42939.pdf BIGORNO. Biodiversité Intertidale sud Gascogne Observation et Recherche de Nouveaux Outils de surveillance et d'aide à la décision - Rapport fiinal 5 De Casamajor, Marie-noelle; Lalanne, Yann; Huguenin, Laura; Marticorena, Julien; Lissardy, Muriel; Bru, Noelle; D'Amico, Franck; Liquet, Benoît. This report presents the results obtained during the BIGORNO project whose main objective is to overcome knowledge gaps on the biocenoses of the southern sub-region "Bay of Biscay" to propose a sampling protocol adapted to biogeographic and environmental specific conditions. A stratified random sampling design considering spatial heterogeneity has been implemented. Biodiversity was considered on 0.1 m²quadrats. These data have revealed the organization of benthic communities and the relevant taxa to be considered (species or assemblages of indicator species) in the context of establishing perennial monitoring of intertidal habitats. Proposals are made to implement the descriptors and indicators defined in the Marine Strategy Framework Directive (MSFD). Tipo: Text Palavras-chave: Côte basque; Estran rocheux; Microhabitats; Espèces indicatrices; Analyses multivariées; DCSMM; Basque coast; Intertidal rocky shore; Microhabitat; Indicator species; Multivariate analysis; MFSD. Ano: 2017 URL: http://archimer.ifremer.fr/doc/00371/48229/48893.pdf Biodiversity patterns, environmental drivers and indicator species on a High-temperature Hydrothermal edifice, mid-Atlantic ridge 5 Sarrazin, Jozee; Legendre, Pierre; De Busserolles, Fanny; Fabri, Marie-claire; Guilini, Katja; Ivanenko, Viatcheslav N.; Morineaux, Marie; Vanreusel, Ann; Sarradin, Pierre-marie. Knowledge on quantitative faunal distribution patterns of hydrothermal communities in slow-spreading vent fields is particularly scarce, despite the importance of these ridges in the global mid-ocean system. This study assessed the composition, abundance and diversity of 12 benthic faunal assemblages from various locations on the Eiffel Tower edifice (Lucky Strike vent field, Mid-Atlantic Ridge) and investigated the role of key environmental conditions (temperature, total dissolved iron (TdFe), sulfide (TdS), copper (TdCu) and pH) on the distribution of macro- and meiofaunal species at small spatial scales (< 1 m). There were differences in macro- and meiofaunal community structure between the different sampling locations, separating the hydrothermal... Tipo: Text Palavras-chave: Biodiversity patterns; Environmental drivers; Indicator species; Hydrothermal vents; Mid-Atlantic Ridge; Meiofauna; Macrofauna; Lucky Strike. Ano: 2015 URL: https://archimer.ifremer.fr/doc/00266/37713/35731.pdf Butterflies for the new millennium: mapping butterfly distributions in Britain (Lepidoptera) 16 Fox, R.; Warren, M.; Harding, P.; Asher, J.; Jeffcoate, G.; Jeffcoate, S.. Butterflies for the new millennium: mapping butterfly distributions in Britain (Lepidoptera) Butterflies for the New Millennium is the largest and most comprehensive survey of butterfly distribution ever undertaken in Britain and Ireland. The number of contributing recorders, the coverage achieved and the number and quality of distribution records generated far exceed those available for any other invertebrate taxon. The data thus provide a unique insight into the effects of habitat degradation and climate change on a high profile insect group. The results of the first five years of the survey (1995-1999) have been analysed to assess broad-scale distribution changes over the past two decades and the past two centuries. In both time periods, the British... Tipo: Article in monograph or in proceedings Palavras-chave: Butterfly recording; Butterfly distribution; Habitat degredation; Climate change; Biodiversity; Conservation; Indicator species; 42.75. Ano: 2003 URL: http://www.repository.naturalis.nl/record/219857 Comparaison de methodes directes (microscopiques) et indirectes (par mise en culture) dans l'evaluation d'une pollution bacterienne d'origine fecale. Etude preliminaire 5 Munro, P; Bianchi, M. Cells of two serotypes of Escherichia coli (O26B6 and 0111B4) were counted using epifluorescence and immunofluorescence microscopy (nonavalent serum) and plate count on specific medium. Values from indirect counts were 10 fold smaller than those from both microscopic counts. In a sample of sea water from an area receiving a fecal pollution, the highest number of bacteria was obtained by epifluorescence microscopy. In that case, the number of cells counted by immunofluorescence microscopy was 10 fold smaller than the number of bacteria able to grow on the medium. It could be due to: the diversity of the natural community, the possibility to other bacteria than E. coli to grow on the used culture medium, the restrictiveness of the serum for "pathogenic... Tipo: Text Palavras-chave: Escherichia coli; Bacteria; Microbiological culture; Pathogenic bacteria; Microbial contamination; Bacterial counters; Fluorescence microscopy; Bacteria collecting devices; Indicator species. Ano: 1984 URL: http://archimer.ifremer.fr/doc/1984/acte-1001.pdf Composición, distribución y abundancia relativa de copépodos pelágicos calanoideos y no calanoideos en aguas ecuatorianas durante el evento La Niña en septiembre de 2001 20 Tutasi, P.. El presente trabajo es una contribución para el conocimiento de la oceanografía biológica de la región ecuatorial tropical donde se manifiestan estas importantes perturbaciones climáticas. Tipo: Journal Contribution Palavras-chave: Community composition; Marine crustaceans; Abundance; Plankton; Zooplankton; Marine ecology; Indicator species; El Nino phenomena; Geographical distribution; Plankton; Zooplankton; Geographical distribution; Marine ecology; Indicator species. Ano: 2006 URL: http://hdl.handle.net/1834/2329 Composition and structure of aquatic insect assemblages of Yungas mountain cloud forest streams in NW Argentina 99 Von Ellenrieder,Natalia. Thirty three lotic environments in the Yungas mountain cloud forest of NW Argentina were sampled both in undisturbed forest areas and sites altered by human activities. Aquatic insects of 143 taxa in 55 families were collected. Cluster analysis suggested altitude as one of the main structuring variables of aquatic insect communities in these streams, and its importance was confirmed by non-metric multidimensional scaling (NMS); the environmental parameters measured that were best correlated with the ordination were altitude, water temperature, latitude and channel variables (width, percentage of large and small woody debris, of undercut banks, cobble and coarse gravel). Multi response permutation procedures (MRPP) showed streams in well preserved areas to... Tipo: Info:eu-repo/semantics/article Palavras-chave: Diversity; Community structure; Indicator species; Biological metrics; Elmidae. Ano: 2007 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0373-56802007000200008 Contribución al estudio de los quetognatos alrededor de las Islas Galápagos 20 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 Determinación de la concentración de hidrocarburos en las aguas superficiales y sedimentos y su relación con Capitella capitata para conocer la contaminación del estuario del Río Chone 20 Paredes, P.. Durante mayo a octubre del 2007 abarcando la época seca y lluviosa, se realizaron análisis para la determinación de hidrocarburos aromáticos totales existentes en agua y sedimentos dentro del estuario del Río Chone mediante la técnica de CARIPOL; los análisis fueron realizados en el Instituto Oceanográfico de la Armada. Dentro del estuario se tomaron 4 estaciones cada una de ellas con un punto de referencia: Estación 1:Isla Corazón, Estación 2: Mangle 2000, Estación 3: Capitanía de Puerto, Estación 4: Repsol. Las muestras fueron tomadas una vez al mes; tomando en cuenta la radiación solar y mareas como variables para el estudio. La concentración de hidrocarburos aromáticos totales disueltos y dispersos en el agua fue entre 0.05-0.329 ug/L, el valor más... Tipo: Journal Contribution Palavras-chave: Aromatic hydrocarbons; Sediments; Chemical analysis; Indicator species; Pollution legislation. Ano: 2010 URL: http://hdl.handle.net/1834/4217 Determinación de los períodos cálidos (El Niño) y fríos (La Niña), en base al comportamiento mensual de los Pterópodos y Heterópodos, como bioindicadores del ecosistema marino ecuatoriano 20 Cruz, M.. El propósito de esta contribución es aportar al mejor conocimiento en la determinación de los períodos cálidos y fríos observados frente a la costa de Ecuador, con la finalidad de aportar al mejor conocimiento de estos eventos oceanográficos naturales, con los que tenemos que aprender a vivir y a tratar de encontrar especies que puedan indicarnos un pronóstico temprano a El Niño o La Niña. Tipo: Journal Contribution Palavras-chave: El Nino phenomena; Indicator species; Marine molluscs; Fixed stations; Surface temperature; Indicator species. Ano: 2006 URL: http://hdl.handle.net/1834/3800 Distribución del fitoplancton en la región costera del mar ecuatoriano, durante diciembre 2000 20 Torres, G.; Tapia, M.E.. La presente investigación describe el comportamiento del primer nivel trófico (clorofila, feopigmentos, biomasa celular e indicadores del fitoplancton) en el ecosistema costero del mar ecuatoriano, conocer la incidencia de las principales especies que se encuentran formando núcleos de mayor productividad e inter-relacionadas con las condiciones ambientales durante el Crucero realizado en diciembre/2000. Tipo: Journal Contribution Palavras-chave: Distribution; Phytoplankton; Chlorophylls; Biomass; Indicator species; Cruises; Distribution; Phytoplankton; Biomass; Chlorophylls; Indicator species; Http://aims.fao.org/aos/agrovoc/c_35773; Http://aims.fao.org/aos/agrovoc/c_13344; Http://aims.fao.org/aos/agrovoc/c_926; Http://aims.fao.org/aos/agrovoc/c_1577; Http://aims.fao.org/aos/agrovoc/c_35790. Ano: 2002 URL: http://hdl.handle.net/1834/2260 Distribución del fitoplancton y su comportamiento en el afloramiento en las Islas Galápagos 20 Torres, G.; Tapia, M.E.. Los objetivos de este crucero han sido colectar información que permitirá comprender mejor la dinámica poblacional (cuali-cuantitativo) de las diferentes masas de aguas que afloran al este y al oeste de las Islas Galápagos y su interacción entre las islas, estos resultados permitirán dar una mejor apreciación sobre áreas de mayor fertilidad marina ( clorofila "a", contajes celulares), organismos indicadores del afloramiento y su posible asociación con áreas de riqueza ictiológica. Tipo: Journal Contribution Palavras-chave: Phytoplankton; Chlorophylls; Biological production; Indicator species; Ichthyoplankton; Cruises; Population dynamics; Phytoplankton; Biological production; Chlorophylls; Indicator species; Population dynamics; Http://aims.fao.org/aos/agrovoc/c_13344; Http://aims.fao.org/aos/agrovoc/c_36649; Http://aims.fao.org/aos/agrovoc/c_1577; Http://aims.fao.org/aos/agrovoc/c_35790; Http://aims.fao.org/aos/agrovoc/c_6111. Ano: 2000 URL: http://hdl.handle.net/1834/2240 Distribución del primer nivel trófico (fitoplancton) en el Pacífico ecuatoriano, período 1996-1997 (pre-El Niño) 20 Tapia, M.E.; Torres, G.. Este artículo describe las condiciones bio-oceanográficas del primer nivel trófico, distribución y concentración de la biomasa fitoplanctónica (clorofila "a") y contajes celulares) a nivel superficial y subsuperficial de la capa fótica a los 75 m. de profundidad, se da la distribución de especies indicadoras del fitoplancton y su relación con las variables de temperatura y nutrientes, registrados en tres cruceros oceanográficos realizados en octubre/1996, abril-mayo/1997 y agosto/1997. Tipo: Journal Contribution Palavras-chave: Distribution; Biomass; Chlorophylls; Phytoplankton; Indicator species; El Nino phenomena; Trophic levels; Multiship expeditions; Distribution; Biomass; Phytoplankton; Trophic levels; Chlorophylls; Indicator species. Ano: 1998 URL: http://hdl.handle.net/1834/2280 Do we protect biological originality in protected areas? A new index and an application to the Bonifacio Strait Natural Reserve 5 Mouillot, D; Culioli, J; Pelletier, Dominique; Tomasini, J. Changes in biodiversity may disrupt the ecological functions performed by species assemblages. Hence, we urgently need to examine the implications of biodiversity loss not only in terms of species conservation but also in terms of sustainability of ecosystem services. The ability of protected areas to maintain local species richness has been clearly demonstrated. However, preserving goods and services provided by ecosystems requires not only the conservation of species richness but also the conservation of the most 'original' species, i.e. the ones with the highest average rarity of their attributes which are likely to perform some unique functions in ecosystems. We proposed a new conservation of biological originality (CBO) index as well as associated... Tipo: Text Palavras-chave: Biological indicator; Indicator species; Fish assemblage; Randomization test; Functional originality; Functional trait; Marine reserve. Ano: 2008 URL: http://archimer.ifremer.fr/doc/2008/publication-4480.pdf Does riparian vegetation affect fish assemblage? A longitudinal gradient analysis in three Amazonian streams 3 Virgilio, Lucena Rocha; Ramalho, Werther Pereira; Silva, João Carlos Barbosa da Silva; Suçuarana, Monik da Silveira; Brito, Cleyton Holanda de; Vieira, Lisandro Juno Soares.  The degradation of riparian vegetation in low-order streams can cause irreversible environmental damage, biodiversity loss and alter the structure of communities. In this context, the present study evaluated how the level of degradation of riparian vegetation influences the fish assemblage in three low-order streams in the Brazilian Amazon. In each stream, three different stretches were delimited, distributed in the environments of forest, edge and pasture, and the samplings were conducted in three hydrological regimes using dip nets. Influences of the stretches and streams on richness and abundance were tested with GLMM, on the composition with PERMANOVA and on indicator species with IndVal. Species richness was higher in forest environments and lower in... Tipo: Info:eu-repo/semantics/article Palavras-chave: Low-order streams; Environmental alteration; Diversity loss; Fish diversity; Indicator species; Pasture.. Ano: 2018 URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/42562 Especies planctónicas marinas como bioindicadoras de masas de agua frente a la costa ecuatoriana durante el evento El Niño 2009-2010 20 Cruz, M.; Tapia, M.E.; Naranjo, Ch.. Con la finalidad de determinar la influencia del evento El Niño 2009-2010 que se dsarrolló en elas regiones Niño 1+2 y 3.4, en base a los organismos indicadores de masas de aguas para determinar la intensidad y efectos en la costa ecuatoriana, se utilizaron cinco grupos de organismos planctónicos: Diatomeas, Dinoflagelados, Quetognatos, Pterópodos, Heterópodos y las concentraciones de clorofila a antes, durante y después del evento El Niño 2009-2010. En el primer trimestre del 2009 se registró una alta producción primaria, mientras que desde septiembre a noviembre se observó la más baja productividad del mar, en las estaciones fijas La Libertad como en Manta.En la estación fija de La Libertad, durante todo el 2009 predominaron especies de fitoplancton que... Tipo: Journal Contribution Palavras-chave: Phytoplankton; Zooplankton; Indicator species; Diatoms; Primary production; El Nino phenomena; Water masses. Ano: 2010 URL: http://hdl.handle.net/1834/4213 Estudio de la morfometría de las sagittae en poblaciones de sciaenidos marinos de aguas cálidas del Perú y aguas templado-frías de Argentina 20 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 Etude de la résistance aux antibiotiques des bactéries isolées de "mytilus galloprovincialis. 20 El Bour, M.; Bouamama, K.; El Abed, O.. L’étude des résistances vis-à-vis de différentes substances antibiotiques pour des espèces bactériennes (aérobies et anaérobies) isolées chez Mytilus galloprovincialis a été réalisée par la méthode standard de l’antibiogramme. Ainsi, 50 souches bactériennes aérobies et 20 souches anaérobies appartenant à plus de 25 espèces différentes ont été isolées et testées. Les résultats obtenus montrent des profils à plusieurs résistances vis-à-vis des différentes familles d’antibiotiques testés. Les résultats obtenus révèlent des profils à 12 résistances différentes notamment chez l’espèce anaérobie (Propioni acnes). Aussi, chez l’espèce aérobie pré dominante ( Aeromonas hydrophila) nous avons mis en évidence au moins 6 antibiotypes différents. Ces résultats... Tipo: Journal Contribution Palavras-chave: Antibiotics; Bacterial diseases; Control resistance; Ecology; Eutrophication; Indicator species; Microbiological analysis; Bacteria; Mytilus galloprovincialis; Http://aims.fao.org/aos/agrovoc/c_765; Http://aims.fao.org/aos/agrovoc/c_31155. Ano: 2006 URL: http://hdl.handle.net/1834/4266 Evaluación de la tasa fotosintética del alga verde Rhizoclonium riparium (Roth) Kützing ex Harvey, expuesta a cobre y su uso como indicador de contaminación por metales en aguas estuarinas 20 Montoya, W.; Peña, E.J.; Benítez, R.. Algae have been used as bioindicators by having several advantages such as they have short life cycles, they can take up nutrients directly from water, they are generally easy to collect in sufficient amounts from various habitats; and they readily accumulate compounds present in seawater, making tissue analyses reliable indicators of water quality. In order to evaluate the bioremoval capability of the green alga Rhizoclonium riparium, the photosynthetic responses to heavy metal pollution under different sublethal concentrations of copper was assessed. Photosynthetic rates were significantly low (p <0.05) at low copper concentrations, between (0.01 y 10 mg/l). Maximum photosynthetic values were shown at 30 y 60 mg/l and almost cero at 150 mg/ l of Cu.... Tipo: Conference Material Palavras-chave: Heavy metals; Biological stress; Algae; Indicator species; Pollution; Bioaccumulation; Copper; Water quality; Estuaries; Heavy metals; Pollution; Bioaccumulation; Copper; Water quality; Estuaries; Algae; Indicator species; Http://aims.fao.org/aos/agrovoc/c_2223; Http://aims.fao.org/aos/agrovoc/c_6077; Http://aims.fao.org/aos/agrovoc/c_32389; Http://aims.fao.org/aos/agrovoc/c_1868; Http://aims.fao.org/aos/agrovoc/c_16061; Http://aims.fao.org/aos/agrovoc/c_2673; Http://aims.fao.org/aos/agrovoc/c_258; Http://aims.fao.org/aos/agrovoc/c_35790. Ano: 2006 URL: http://hdl.handle.net/1834/2256 Registros recuperados: 38 Primeira ... 1 2 ... Última

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