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Registros recuperados: 33
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Adaptation of copper community tolerance levels after biofilm transplantation in an urban river ArchiMer
Fechner, Lise C.; Versace, Francois; Gourlay-france, Catherine; Tusseau-vuillemin, Marie-helene.
The Water Framework Directive requires the development of biological tools which can act as early-warning indicators of a sudden increase (accidental pollution) or decrease (recovery due to prevention) of the chemical status of aquatic systems. River biofilms, which respond quickly to modifications of environmental parameters and also play a key part in the functioning of aquatic ecosystems, are therefore good candidates to monitor an increase or a decrease of water pollution. In the present study, we investigated the biological response of biofilms transplanted either upstream (recovery) or downstream (deterioration of exposure levels) the urban area of Paris (France). Both modifications of Cu community tolerance levels and of global bacterial and...
Tipo: Text Palavras-chave: River; Biofilm; PICT; ARISA; Urban contamination; Transplantation.
Ano: 2012 URL: http://archimer.ifremer.fr/doc/00070/18129/16053.pdf
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Alguns resultados e problemas da limnologia amazônica. Repositório Alice
SIOLI, H..
1951
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Água; Limnologia; Análise; Geologia; Amazônia; Brasil; Quimismo; Water; Liminology; Analysis; Geology; River; Chemism.
Ano: 1951 URL: http://www.alice.cnptia.embrapa.br/handle/doc/376376
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Anais... Infoteca-e
SIMPOSIO SOBRE RECURSOS NATURAIS E SOCIO-ECONOMICOS DO PANTANAL, 1., 1984, Corumba..
A publicacao do evento apresenta temas sobre recursos naturais, mostrando a pesquisa desenvolvida no Pantanal, enfocando o sistema climatico, hidrologia, aspectos geologicos e geomorfologicos, solos, vegetacao, flora, fauna, os problemas e perspectivas socio-economicos, propostas de politicas de desenvolvimento da regiao. Sumario - O sistema climatico do Pantanal: compreensao do sistema a definicao de prioridades de pesquisa climatologica. Condicoes climaticas para a regiao do Pantanal Mato-Grossense. Hidrologia da Bacia do Alto Paraguai. A dinamica das inundacoes no Pantanal. Aspectos geologicos do Pantanal Mato-Grossense e de sua area de influencia. Contribuicao da geomorfologia para o conhecimento e valorizacao do Pantanal. Solos do Pantanal...
Tipo: Documentos (INFOTECA-E) Palavras-chave: Recurso natural; Congresso; Mato Grosso do Sul; Recurso socio-economico; Pantanal; Climatologia; Recursos hidricos; Geologia; Geomorfologia; Solo; Vegetacao; Flora; Fauna; Natural resource; Socio-economic resource; Climatology; River; Geology; Geomorphology; Soil; Vegetation; Brazil; Congress.
Ano: 1986 URL: http://www.infoteca.cnptia.embrapa.br/handle/doc/787689
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Assessment of ammonia toxicity in contaminated sediments in the upper Scheldt (Belgium): the development and application of toxicity identification evaluation procedures OMA
Van Sprang, P.; Janssen, C.R.; Sabayasachi, M.; Benijts, F.; Persoone, G..
The toxicity of sediment pore waters from 4 sites in the Upper Scheldt war characterized using modified Toxicity Identification Evaluation (TIE) procedures The samples from all locations exhibited acute toxicity to the freshwater crustacean Thamnocephalus platyurus. The IIE approach was conducted using an enlarged battery of fractionation tests. Toxicity was removed or reduced significantly by the cation exchange resins and the air-stripping test at pH 11. Additionally, increased toxicity war observed at higher pH while a reduced toxicity war found at a decreased pH. From these TIE studies, ammonia war identified as the dominant toxic agent.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Metals; River; Toxicants; Water.
Ano: 1996 URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7459
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Comunidades de esponjas do curso superior dos rios Paraná (Goiás) e Paraguai (Mato Grosso), Brasil, com redescrição de Oncosclera schubarti (Bonetto & Ezcurra de Drago) Zoologia
Batista,Twiggy Cristina Alves; Volkmer-Ribeiro,Cecília.
An extensive survey for freshwater sponges was carried at the temporarely exposed rocky bottoms of river Corumbá at Goiás State and river Manso at Mato Grosso State. The exposure resulted from the closing of the dams for lake formation at the respective Hidreletric Power Plants. Drulia uruguayensis Bonetto & Ezcurra de Drago, 1968, Corvospongilla seckti Bonetto & Ezcurra de Drago, 1966 and Trochospongilla repens (Hinde, 1888) were seen to be common to both rivers. Eunapiusfragilis (Leidy, 1851), Oncosclera navicella (Carter, 1881) and O. petricola (Bonetto & Ezcurra de Drago, 1969) were yet found in river Manso and O. schubarti (Bonetto & Ezcurra de Drago, 1967) in river Corumbá. O. schubarti is redescribed and SEM...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Sponges; Oncosclera schubarti; Neotropical; River; Benthic assemblages.
Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752002000100010
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Daily and seasonal estimates of the recruitment and biomass of glass eels runs (Anguilla anguilla) and exploitation rates in the Adour open estuary (Southwestern France) ArchiMer
Bru, Noelle; Prouzet, Patrick; Lejeune, Michel.
The European eel (Anguilla anguilla) is drastically declining in all its distribution area and listed in the red list of the IUCN (International Union for Conservation of Nature). A rebuilding plan was adopted at European level in 2007, Regulation R(CE) 100/2007, to restore eel abundance to the level observed during the seventies. Its implementation started on the 1(st) of January 2009. This species is heavily threatened by numerous activities including fishing, and its management can only be effective through a systemic approach minimizing the whole range of human-induced impacts on the resource and its habitat. In the framework of the European interregional programme INTERREG IIIB-Atlantic Area-the INDICANG project aimed at elaborating abundance...
Tipo: Text Palavras-chave: Biomass estimates; Exploitation rate; Time series; River; Glass eel; Anguilla anguilla.
Ano: 2009 URL: http://archimer.ifremer.fr/doc/00000/11170/7526.pdf
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Demonstration Restoration Measures in Tributaries of the Vindel River Catchment Ecology and Society
Holmqvist, Daniel; Vindel River Fishery Advisory Board; daniel.holmqvist@lycksele.se.
Some ecological restoration projects include elements of trial and error where new measures are repeatedly tried, evaluated, and modified until satisfactory results are achieved. Thereafter, the resulting methods may be applied on larger scales. A difficult step is judging whether developed “best-practice” methods have become reasonably ecologically functional or whether further experimentation “demonstration” methods can lead to yet better results. Here, we use a stream restoration project as a case study for evaluating methods and abiotic effects and outlining stakeholder support for demonstration restoration measures, rather than only using best-practice methods. Our work was located in the Vindel River system, a...
Tipo: Peer-Reviewed Reports Palavras-chave: Boulders; Large wood; Northern Sweden; Restoration; River; Stream; Timber floating.
Ano: 2013
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Diagnostico do fluxo de sedimentos em suspensao na Bacia do Rio Sao Francisco. Repositório Alice
LIMA, J. E. F. W.; SANTOS, P. M. C. dos; CHAVES, A. G. de M.; SCILEWSKI, L. R..
Introducao; Caracterizacao da bacia; Levantamento e analise dos dados; Caracterizacao das estacoes e analise dos parametros levantados; Conclusoes; Referencias bibliograficas.
Tipo: Livro científico (ALICE) Palavras-chave: Bacia hidrográfica; Rio Sao Francisco; Sedimento; Brasil; Watersheds; Sediment; Brazil; Cerrado; Geografia; Hidrologia; Hydrography; River; San Francisco.
Ano: 2001 URL: http://www.alice.cnptia.embrapa.br/handle/doc/564320
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Dietary breadth and trophic position of introduced European catfish Silurus glanis in the Tarn River (Garonne River basin), southwest France ArchiMer
Syvaeranta, Jari; Cucherousset, Julien; Kopp, Dorothee; Crivelli, Alain; Cereghino, Regis; Santoul, Frederic.
Although being a widely introduced and successfully established species, the European catfish Silurus glanis L. (the world’s third largest freshwater fish) remains poorly studied in its introduced areas. Here we studied the trophic ecology of non-native European catfish in a large river system in south-western France using stomach content and stable isotope analyses (SIA). We used fin samples for SIA of catfish and hence tested the validity of using fin tissue as a proxy for muscle in SIA. The mean δ15N and δ13C values analysed from fin tissues did not differ from those analysed from muscle tissue and reflected strong and consistent relationships (r2 = 0.95 for carbon and r2 = 0.98 for nitrogen). The δ15N values varied almost 5‰ among the analysed catfish...
Tipo: Text Palavras-chave: Stable isotopes; Introduced species; Top predator; River; Food web; Fin clips.
Ano: 2010 URL: http://archimer.ifremer.fr/doc/00168/27896/26159.pdf
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Dispersão de Lernaea cyprinacea (Linnaeus) (Crustácea, Copepoda) na região norte do estado do Paraná, Brasil Zoologia
Gabrielli,Mário Artur; Orsi,Mário Luís.
Inside of the parasitoses context in fish, the study was successful to us verified the lerniose was present in the north area of the State. It had reached the native fish in the basin of the river Tibagi. For the study, visits were made to the aquaculture and samples collected in the area of Sertanopolis on the river Tibagi. We verified that the lerniose was growing in the area and had already reached several species of native fish of the river Tibagi. This concein for ali the researchers of the area, as well as the producers of fish.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Lernaea cyprinacea; Tibagi; Paranapanema; River.
Ano: 2000 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752000000200010
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Effect of Heavy Metals on Liver, Kidney, Gills and Muscles of Cyprinus carpio and Wallago attu inhabited in the Indus BABT
Mahboob,Shahid; Kausar,Shazia; Jabeen,Farhat; Sultana,S.; Sultana,T.; Al-Ghanim,K.A.; Hussain,Bilal; Al-Misned,Fahad; Ahmed,Z..
ABSTRACT: The present study was aimed to evaluate the effect of heavy metals on an important tissue of two fish species Cyprinus carpio and Wallago attu, sampled from the Indus river, Mianwali District, Pakistan. The concentration of selected heavy metals Fe, Cr, Cu, and in gills, muscles, kidney and liver was compared with an International standard of food fish. The overall metal concentrations among different weight categories in C. carpio were in the order of Fe > Cu > Cr >. In W. attu the overall accumulation of these metals were, in order of Fe > Cu > Cr > Pb The order of accumulation of metals in gills and muscle of C. carpio was Fe > Cr > Pb > Cu; kidney and muscles of W. attu was Fe > Cr > Cu > Pb; liver Fe >...
Tipo: Info:eu-repo/semantics/article Palavras-chave: River; Heavy metals; Fish; Weight; Pollution.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132016000100334
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Going against the flow: Effects of river damming in Cuban fisheries OceanDocs
Baisre, J. A.; Arboleya, A..
Over the last decade eutrophication of freshwater artificial reservoirs in Cuba occurred in parallel to oligotrophication of estuarine and coastal waters. These two processes influenced both freshwater and marine fisheries. A dramatic shift in species composition in freshwater fisheries has occurred, from dominance by cichlids (tilapia) to dominance by cyprinids. The high fishery yield from some reservoirs, and shift in species composition, seems related to progressive eutrophication of reservoirs by nutrient subsidies from different anthropogenic activities; particular those related to the size of urban areas within their watersheds. On the other hand, marine landings of estuarine-dependent species declined more significantly than for other groups...
Tipo: Journal Contribution Palavras-chave: Fisheries; Eutrophication; River.
Ano: 2006 URL: http://hdl.handle.net/1834/5110
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Heavy Metals in Garra gotyla , Cyprinus carpio and Cyprinion watsoni from the River Panjkora, District, Lower Dir, Khyber Pakhtunkhwa, Pakistan BABT
Ullah,Sana; Hussain,Zaqhim; Mahboob,Shahid; Al-Ghanim,Khalid.
ABSTRACT This study was conducted in the River Panjkora, Pakistan, in order to assess the level of heavy metals accumulated in the liver, kidneys, gills and muscle tissues of three highly consumed fish species by the local community, Garra gotyla, Cyprinus carpio and Cyprinion watsoni. The heavy metals including manganese (Mn), iron (Fe), chromium (Cr), zinc (Zn), lead (Pb), cadmium (Cd) and nickel (Ni) were determined in the collected fish specimens through an atomic absorption spectrophotometer. Level of heavy metals significantly varied depending upon tissues type and fish species. Cyprinus carpio accumulated highest concentration of heavy metals, followed by Garra gotyla while Cyprinion watsoni accumulated least concentration of heavy metals. All the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: River; Control site; Tissues; Pollution; Heavy Metals.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132016000100702
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Hydrological and biogeochemical dynamics of the minor and trace elements in the St. Lawrence River ArchiMer
Rondeau, B; Cossa, Daniel; Gagnon, P; Pham, T; Surette, C.
Surface water samples from the St. Lawrence River were collected in order to study the processes controlling minor and trace elements concentrations (Al, Fe, Mn, Cd, Co, Cu, Ni and Zn), and to construct mass balances allowing estimates of the relative importance of their natural and anthropogenic sources. The two major water inputs, the upper St. Lawrence River, which drains waters originating from the Lake Ontario, and the Ottawa River were collected fortnightly over 18 months. In addition, other tributaries were sampled during the spring floods. The output was monitored near Quebec City at the river mouth weekly between 1995 and 1999. Dissolved metal concentrations in the upper St. Lawrence River carbonated waters were lower than in the acidic waters of...
Tipo: Text Palavras-chave: St. Lawrence; Mass balance; River; Biogeochemistry; Trace element.
Ano: 2005 URL: http://archimer.ifremer.fr/doc/2005/publication-1357.pdf
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Introdução de espécies de peixes por escapes acidentais de tanques de cultivo em rios da Bacia do Rio Paraná, Brasil Zoologia
Orsi,Mário L; Agostinho,Ângelo A.
Species composition and abundance of fishes that escaped from aquaculture facilities during catastrophic flooding in the Paranapanema and Tibagi rivers, in January, 1997 was estimated. In all , 1,292,000 adult individuais belonging to 11 species and 1 hybrid, were introduced into these rivers; only one species was native. The disaster is attributed to the illegal occupation of the river banks, and the non observance of standard measures designed to avoid escapement.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Species introduction; Tibagi river; Paranapanema; River.
Ano: 1999 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751999000200020
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Iron isotope systematics in Arctic rivers ArchiMer
Escoube, Raphaelle; Rouxel, Olivier; Pokrovsky, Oleg S.; Schroth, Andrew; Holmes, Robert Max; Donard, Olivier F. X..
The input of iron to the Arctic Ocean plays a critical role in the productivity of aquatic ecosystems and is potentially impacted by climate change. We examine Fe isotope systematics of dissolved and colloidal Fe from several Arctic and sub-Arctic rivers in northern Eurasia and Alaska. We demonstrate that the Fe isotopic (δ56Fe) composition of large rivers, such as the Ob’ and Lena, has a restricted range of δ56Fe values ca.–0.11 ± 0.13‰, with minimal seasonal variability, in stark contrast to smaller organic-rich rivers with an overall δ56Fe range from–1.7 to + 1.6‰. The preferential enrichment with heavy Fe isotopes observed in low molecular weight colloidal fraction and during the high-flow period is consistent with the role of organic complexation of...
Tipo: Text Palavras-chave: Iron isotope; Colloids; River; Weathering; Arctic; Iron speciation.
Ano: 2015 URL: https://archimer.ifremer.fr/doc/00273/38402/36865.pdf
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Les polychlorobiphenyles ( PCB ) en Baie de Seine ArchiMer
Abarnou, Alain.
PCB contamination and i ts relationship wi th suspended particulate matter (SPM) have been studied in water from the Seine estuary and the baie de Seine, in July 1985 and February 1986. PCB chromatograms are very similar and characterize a chronic contamination. PCB concentrations vary from 2 ng/l in the marine zone up to 210 ng/l in the estuary. SPM and PCB concentrations are weIl correlated. Highest PCB concentrations are measured in February due to higher SPM inputs mainly made of finer particles.
Tipo: Text Palavras-chave: PCB; Seine; Fleuve; Estuaire; Baie; Matières en suspension; PCB; Seine; River; Estuary; Bay; Suspended particulate matter.
Ano: 1988 URL: http://archimer.ifremer.fr/doc/00138/24924/23020.pdf
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Levantamento e estatistica descritiva dos niveis hidrometricos do rio Paraguai em Ladario, MS - Pantanal: periodo 1900-1994. Infoteca-e
GALDINO, S.; CLARKE, R.T..
O nivel hidrometrico do rio Paraguai em Ladario, MS, medido pela regua instalada no 6. Distrito Naval da Marinha do Brasil, constitui o principal referencial do regime hidrologico da bacia do Alto Paraguai, possibilitando ate mesmo a caracterizacao de um dado periodo como sendo de seca ou de cheia no Pantanal. Quando o nivel maximo anual (pico ou ponta de cheia) e igual ou superior a cota de alerta de enchente do rio Paraguai em Ladario, ou seja 4,00 m, esse ano e considerado como sendo de cheia no Pantanal, caso contrario, como sendo de seca. Utilizando-se 34.607 registros diarios, relativos ao periodo de 01/01/1900 a 30/09/1994, foram realizados levantamentos e estudos estatisticos a nivel; diario, mensal e anual (ano hidrologico). Foram levantados...
Tipo: Documentos (INFOTECA-E) Palavras-chave: Hidrologia; Rio Paraguai; Nivel hidrometrico; Pantanal; Ladario; Mato Grosso do Sul; Brasil; Hydrology; Basin; Hydrometric level; River; Brazil.
Ano: 1995 URL: http://www.infoteca.cnptia.embrapa.br/handle/doc/787815
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Manager perspectives on communication and public engagement in ecological restoration project success Ecology and Society
Druschke, Caroline Gottschalk; University of Rhode Island; cgd@uri.edu; Hychka, Kristen C.; U.S. EPA, Atlantic Ecology Division; khychka@gmail.com.
We look to a particular social-ecological system, the restoration community in Rhode Island, USA and the rivers, wetlands, marshes, and estuaries they work to protect, to draw connections between communication, community involvement, and ecological restoration project success. Offering real-world examples drawn from interviews with 27 local, state, federal, and nonprofit restoration managers, we synthesize the mechanisms that managers found effective to argue that the communication employed by resource managers in each phase of the restoration process, in prioritization, implementation, and monitoring, and for garnering broad-based support, shapes the quality of public engagement in natural resources management, which, in turn, can impact the stakeholder,...
Tipo: Peer-Reviewed Reports Palavras-chave: Adaptive comanagement; Adaptive management; Communication; Discourse analysis; Natural resource management; Public engagement; Public participation; Restoration; River; Stakeholder engagement; Water.
Ano: 2015
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Mercury in the Lot-Garonne River system (France): Sources, fluxes and anthropogenic component ArchiMer
Schafer, J; Blanc, Gerard; Audry, S; Cossa, Daniel; Bossy, C.
Dissolved and particulate Hg fluxes in the Lot-Garonne-Gironde fluvial-estuarine system were obtained from observation of daily discharge and suspended particulate matter (SPM) concentrations. In addition to the measurements of the total dissolved (< 0.45 gm) and particulate Hg (> 0.45 gm), called HgTD and HgTp respectively, the dissolved inorganic Hg species (HgRD) were determined monthly. Geochemical background values for HgTp in sediments and SPM were similar to crustal values and to typical concentrations in SPM of non-contaminated river systems, respectively. The Riou Mort watershed already known as the origin of important historical polymetallic (e.g., Cd, Zn) pollution was identified as an important Hg point source. In the downstream Lot...
Tipo: Text Palavras-chave: Lot; Garonne; SPM; River; Organic matter; Mercury.
Ano: 2006 URL: http://archimer.ifremer.fr/doc/2006/publication-1343.pdf
Registros recuperados: 33
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