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	Provedor de dados OceanDocs (8) ArchiMer (3) J. Soil Sci. Plant Nutr. (1) BABT (1) BJMBR (1) Ciência e Agrotecnologia (1) R. Bras. Zootec. (1) Mais... Autor Ameur, S. (2) Boussetta, H. (2) Ghedira, J. (2) Jebali, J. (2) Ai, Chunxiang (1) Ajao, E.A. (1) Alvarenga,Renata Ribeiro (1) Bianchi,Maria Lúcia (1) Bouraoui, J. (1) Bouraoui, Z. (1) Brown, C (1) Couto,Gabriela Martucci (1) David,Carlos João (1) Dessimoni,Anelise Lima de Abreu (1) Gagnaire, Beatrice (1) Gherbej, H. (1) Gianfreda,L (1) Guerbej, H. (1) Hamed, M.A. (1) Harzallah, A. (1) Mais... Palavra-chave Pollutants (16) Heavy metals (3) Http://aims.fao.org/aos/agrovoc/c_6076 (3) Pesticides (3) Catchment area (2) Polluants (2) Pollution effects (2) Water pollution (2) Addictive (1) Adsorbents (1) Agro-industrial residues (1) Algues toxiques (1) Animal organs (1) Antioxidant defense (1) Available phosphorus (1) Bacteria (1) Bioaccumulation (1) Biodegradation (1) Biomarkers of exposure (organisms) (1) Biomass (1) Mais... Tipo do documento Journal Contribution (5) Info:eu-repo/semantics/article (3) Text (3) Proceedings Paper (2) Info:eu-repo/semantics/other (1) Journal article (1) Report (1) Mais... Ano 2012 (1) 2011 (1) 2010 (1) 2009 (3) 2008 (2) 2006 (3) 2005 (1) 2003 (1) 1998 (1) 1985 (1) 1984 (1) Mais... País Belgium (8) Brazil (4) France (3) Chile (1) Idioma Inglês (11) Francês (5)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 16 Primeira ... 1 ... Última Acute toxicity tests of a textile mill wastewater effluent and a "detergent wash" with a Hermit crab (Climbinarius Africanus) (Aurivillius) OceanDocs Ajao, E.A.. Bioassay tests were conducted with wastewater effluents from a textile mili and a detergent packing plant using the hermit crab. Clibinarius africanus. (Aurivillus) as experimental animal. LC50 values were evaluated using static testing procedures for 24, 48 and 96 hour. For the textile effluent, means of 79.0, 50.24 and 51.81 percentage effluent by volume were obtained in respect of crabs in the “medium” weight range (0.3 – 0.7grams) for the test periods. For the “detergent wash”, 95.16, 85.00 and 82.33 percentage effluent by volume represented means of values obtained for “small” size crabs (weight range 0.08–0.24 grams) and 96.0, and 81.50 percentage effluent by volume for ‘medium’ size crabs for 24, 48 and 96 hour respectively. Spearman’s Rank... Tipo: Report Palavras-chave: Pollutants; Water pollution; Pollutants; Water pollution; Http://aims.fao.org/aos/agrovoc/c_6076; Http://aims.fao.org/aos/agrovoc/c_8321. Ano: 1985 URL: http://hdl.handle.net/1834/2440 Degradation of the riparian wetlands in the Lake Victoria basin - Yala swamp case study OceanDocs Thenya, Thuita; Wassmann, Reiner; Verchot, Louis; Mungai, David. Land degradation is as a result of broad range of scales and factors, which include biophysical, climatic, demographic and socio-economic. The aim of this paper was to provide an analysis of wetland utilisation, ecosystem degradation and their effect on the Lake Victoria (Kenya) ecosystem. This involved analysis of socioeconomic and remote sensed data. The main sources of wetland degradation in the Lake Victoria basin were identified as (1) farming activities, (2) grazing and macrophyte harvesting and (3) coupled with catchment degradation-deforestation. These factors were closely related to the demographic dynamics and unsustainable land utilisation practices. Socio-economic data provided valuable insight on the pattern of wetland utilisation and possible... Tipo: Proceedings Paper Palavras-chave: Riparian environments; Degradation; Wetlands; Inland waters; Catchment area; Remote sensing; Environmental effects; Socioeconomic aspects; Resource development; Sediment transport; Silting; Water pollution; Wetlands; Deforestation; Natural resources; Utilization; Land use; Pollutants. Ano: 2006 URL: http://hdl.handle.net/1834/5313 Determination of persistent organic pollutants in water of new Damietta harbour, Egypt OceanDocs Hamed, M.A.; Said, T.O.. Persistent organic pollutants (POPs) which include chlorinated pesticides and petroleum hydrocarbons were determined in water samples collected from Damietta Harbour during 2005. Concentration of total pesticides ranged from 0.02 to 0.07 ng/L and from 1.09 to 201.82 ng/L during winter and summer seasons, respectively. The increasing order of total pesticides was: THCHs < TC < total DDTs with concentrations ranged from 0.004-3.20 ng/L, 0.001-3.93 ng/L and 0.002-194.68 ng/L, respectively in the area of study. The average concentrations of total petroleum hydrocarbons were below the admissible environmental levels. They ranged from 2.17-72.89 µg/L and from 5.67-87.56 µg/L during January and July 2005, respectively. However, concentrations of PAHs were... Tipo: Journal Contribution Palavras-chave: Environmental Studies (Pollution Studies); Pollutants; Coastal waters; Pollutants; Coastal waters; Http://aims.fao.org/aos/agrovoc/c_6076; Http://aims.fao.org/aos/agrovoc/c_25205. Ano: 2006 URL: http://hdl.handle.net/1834/1462 Effects of Heavy Metal and Pollutants on the Non-special Immunity of the Shrimp and Crab. OceanDocs Ai, Chunxiang; Wang, Xiaojuan; Li, Shaojing; Wang, Guizhong; Lin, Qiongwu. This paper attempted to review and evaluate existing information about the effects of heavy metal，ammonia-N，nitrite and the organic pollutants on the non-special immune response of the shrimp and crab, which providing theory for improving the self-immunity of shrimp and crab by meliorating cultural environment. In addition, it could provide information for further study on this field. Tipo: Journal Contribution Palavras-chave: Immune response; Heavy metals; Pollutants; Crabs; Prawns and shrimps. Ano: 2008 URL: http://hdl.handle.net/1834/5871 Energy and protein levels in diets containing phytase for broilers from 22 to 42 days of age: performance and nutrient excretion R. Bras. Zootec. Nagata,Adriano Kaneo; Rodrigues,Paulo Borges; Alvarenga,Renata Ribeiro; Zangeronimo,Márcio Gilberto; Rodrigues,Kênia Ferreira; Lima,Gustavo Freire Resende. This study was conducted in order to evaluate the influence of different levels of metabolizable energy and crude protein in diets formulated according to the ideal protein concept with phytase supplementation on performance and nutrient excretion of broilers from 22 to 42 days age. It was used 1,500 Coob lineage broilers at 22 days of age and with initial weight of 833 ± 7g, distributed in completely randomized design in a 3 × 3 + 1 factorial scheme composed of three levels of correct apparent metabolizable energy (2,950; 3,100 and 3,250 kcal/kg), three levels of crude protein (14, 16 and 18%) and a control treatment, totaling ten treatments with six repetitions of 25 birds each. All diets, with the exception of the control, were supplemented with... Tipo: Info:eu-repo/semantics/article Palavras-chave: Addictive; Available phosphorus; Enzyme; Ideal protein; Metabolizable energy; Pollutants. Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011000800014 Etude des effets de polluants sur les paramètres hémocytaires de l'huître creuse, Crassostrea gigas - Interactions entre environnement, mécanismes de défense et maladies infectieuses ArchiMer Gagnaire, Beatrice. Shellfish industry is mostly realized in estuary zones, which are subjected to pollutions due to anthropic activities. The harmful effects of pollutants on animals inhabiting these estuarine zones are poorly known. Among these animals, Pacific oyster, Crassostrea gigas, may represent a model because they are sedentary and they filter water intensively. Among all physiological functions possibly disturbed by pollutants, defence mechanisms are poorly studied in bivalves. Moreover, animals presenting impaired defence mechanisms may be more sensitive to infectious diseases. In this context, effects of pollutants on hemocyte functions and on sensitiveness to diseases were tested in C. gigas. After adjusting the protocols for the monitoring of hemocyte... Tipo: Text Palavras-chave: Real time PCR; Flow cytometry; Pesticides; Pollutants; Phagocytosis; Hemocytes; Crassostrea gigas; Pacific oyster; Pathology; Immunotoxicology; PCR en temps réel; Cytométrie de flux; Pesticides; Polluants; Phagocytose; Hémocytes; Crassostrea gigas; Huître creuse; Pathologie; Immunotoxicologie. Ano: 2005 URL: http://archimer.ifremer.fr/doc/2005/these-730.pdf etude quantitative et qualitative des métallothioneines chez la daurade <"Sparus aurata"> exposée aux metaux lourds OceanDocs Jebali, J.; Ghedira, J.; Bouraoui, Z.; Ameur, S.; Gherbej, H.; Boussetta, H.. Dans l’environnement marin, les éléments traces peuvent s’accumuler dans les organismes à des concentrations supérieures à celles présentes dans l’eau. L’étude de la distribution tissulaire des métaux traces au niveau des organismes qui y sont exposés, constitue un aspect très important pour la compréhension de leur devenir. En outre, le suivi de la réponse biologique spécifique de ces organismes sentinelles aux xénobiotiques complète et consolide l’analyse chimique. Ce travail vise à étudier la distribution tissulaire des métaux traces et des métallothionéines (MTs) chez la daurade «Sparus aurata » traitée par un métal essentiel (le cuivre) et un métal non essentiel (le cadmium) à une concentration de 500µg /Kg de poids frais pendant 48 heures.... Tipo: Journal Contribution Palavras-chave: Heavy metals; Pollutants; Heavy metals; Pollutants; Http://aims.fao.org/aos/agrovoc/c_2223; Http://aims.fao.org/aos/agrovoc/c_6076. Ano: 2009 URL: http://hdl.handle.net/1834/3780 Etude quantitative et qualitative des métallothioneines chez la daurade "Sparus aurata" exposée aux métaux lourds OceanDocs Ameur, S.; Ghedira, J.; Guerbej, H.; Jebali, J.; Bouraoui, J.; Boussetta, H.. Dans l’environnement marin, les éléments traces peuvent s’accumuler dans les organismes à des concentrations supérieures à celles présentes dans l’eau. L’étude de la distribution tissulaire des métaux traces au niveau des organismes qui y sont exposés, constitue un aspect très important pour la compréhension de leur devenir. En outre, le suivi de la réponse biologique spécifique de ces organismes sentinelles aux xénobiotiques complète et consolide l’analyse chimique. Ce travail vise à étudier la distribution tissulaire des métaux traces et des métallothionéines (MTs) chez la daurade «Sparus aurata » traitée par un métal essentiel (le cuivre) et un métal non essentiel (le cadmium) à une concentration de 500µg /Kg de poids frais pendant 48 heures.... Tipo: Journal Contribution Palavras-chave: Animal organs; Bioaccumulation; Cadmium; Gills; Heavy metals; Metals; Pollutants; Pollution effects; Sediment pollution; Toxicity tests; Trace metals; Marine sciences; Biomarkers of exposure (organisms); Metallic elements. Ano: 2009 URL: http://hdl.handle.net/1834/4448 Experimental systems for the study of bacterial degradation of pollutants from the oil industry. ArchiMer Wardell, J; Brown, C. The release of pollutants into the environment, either during normal operations or due to accidental discharges, has focussed attention on the fate and effects of xenobiotic compounds in the marine environment. This interest has been heightened by the development of the off-shore industry with the subsequent discharge of biocides from platforms. This paper describes the results obtained from investigations into the fate of biocides in the marine environment using continuous-culture techniques. Tipo: Text Palavras-chave: Bacteria; Continuous culture; Microbiological culture; Oil and gas industry; Pollutants; Pesticides; Biodegradation. Ano: 1984 URL: http://archimer.ifremer.fr/doc/1984/acte-1018.pdf Liver oxidative stress of the grey mullet Mugil cephalus presents seasonal variations in Ennore estuary BJMBR Padmini,E.; Vijaya Geetha,B.; Usha Rani,M.. The objective of this study was to determine the liver oxidative stress status of grey mullets living in heavy-metal-rich polluted Ennore estuary compared with unpolluted Kovalam estuary. Fish were collected from both estuaries during the monsoon and summer seasons from October 2004 to September 2006. Fish liver homogenate (N = 20 per group) was prepared for evaluating oxidative stress parameters. Fish living in the polluted estuary had significantly higher lipid oxidation products, conjugated dienes (0.346 ± 0.017 vs 0.141 ± 0.012 DA233/mg protein), lipid hydroperoxides (0.752 ± 0.032 vs 0.443 ± 0.03 nmol/mg protein), and lipid peroxides (3.447 ± 0.14vs 1.456 ± 0.096 nmol MDA/mg protein) than those of the unpolluted estuary during the summer. In contrast,... Tipo: Info:eu-repo/semantics/other Palavras-chave: Antioxidant defense; Estuary; Grey mullets; Oxidative stress; Pollutants. Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2008001100002 Microphytobenthic primary production, biomass, nutrients and pollutants of Santos Estuary (24ºS, 46º20'W). São Paulo, Brazil BABT Sousa,Eduinetty Ceci Pereira Moreira de; Tommasi,Luiz Roberto; David,Carlos João. The present study aimed to evaluate the seasonal variation of microphytobenthic biomass and its primary production in the intertidal zone in Santos Estuary (São Paulo, Brazil). This estuary is on the tropical region and it is regarded as a polluted area. The samples were collected at 3 sites, and environmental parameters, nutrients and heavy metals were analyzed. The primary production was evaluated according to GRφNTVED (1960) method whereas chlorophyll a and phaeopigment a were estimated by TETT et al. (1975) method. Total nitrogen K ranged from 20.0 to 115.0 µg·g-1 while total phosphate ranged from 26.0 to 223.0 µg·g-1. No significant seasonal variation of benthic primary production or chlorophyll a and phaeopigment a were observed. Significant positive... Tipo: Info:eu-repo/semantics/article Palavras-chave: Biomass; Primary production; Microphytobenthic; Intertidal; Pollutants; Biomassa; Produção primária; Microfitobentos; Entremarés; Poluentes. Ano: 1998 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89131998000100004 ROLE OF ENZYMES IN THE REMEDIATION OF POLLUTED ENVIRONMENTS J. Soil Sci. Plant Nutr. Rao,M.A; Scelza,R; Scotti,R; Gianfreda,L. Environmental pollution is growing more and more due to the indiscriminate and frequently deliberate release of hazardous, harmful substances. Research efforts have been devoted to develop new, low-cost, low-technology, eco-friendly treatments capable of reducing and even eliminating pollution in the atmosphere, the hydrosphere and soil environments. Among biological agents, enzymes have a great potentiality to effectively transform and detoxify polluting substances because they have been recognized to be able to transform pollutants at a detectable rate and are potentially suitable to restore polluted environments. This brief review will examine some classes of pollutants and enzymes capable of transforming them effectively into innocuous products.... Tipo: Journal article Palavras-chave: Pollutants; Enzymes; Environmental pollution; Bioremediation. Ano: 2010 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162010000100008 Surveillance du milieu marin et protection santiaire des coquillages ArchiMer Renault, Tristan. Shellfish farming is a major economic activity in the European Union, France being one of the main producing countries. Regulations were introduced to meet society's current expectations in terms of food safety at the fishing, farming and harvesting stages, as weil as during processing and marketing. Toxic algae, pathogens or pollutants may contaminate shellfish products during production and harvesting, partly because of the particular environ mental conditions in which these animais are grown. Monitoring programmes were thus deve/oped to detect the presence of biological and chemical contaminants in coastal waters and in shellfish, and to monitor the food safety of the latter. Tipo: Text Palavras-chave: Pollutants; Microbiological contamination; Toxic algae; Shellfish; Marine environment; Programmees; Monitoring; Polluants; Contamination microbiologique; Algues toxiques; Coquillages; Milieu marin; Réseaux; Surveillance. Ano: 2009 URL: http://archimer.ifremer.fr/doc/2009/publication-6932.pdf The status of persistent organic pollutants in Lake Victoria catchment OceanDocs Madadi, O.V; Wandiga, S. O; Jumba, I. O.. The use of most organochlorine pesticides has been banned or restricted in the republic of Kenya under the Rotterdam and Stockholm convention due to high levels of persistence in the environment and toxicity to nontarget organisms. Studies conducted in some parts of the country have revealed that residue levels of these compounds are still in the environment. However, the residues of these compounds have not been exhaustively studied in the Lake Victoria catchment area. This study was set to investigate the residues levels of p,p-DDT, o,p’- DDE, p,p-DDD, g-HCH, D-HCH, a-HCH, Aldrin, and Dieldrin, in water samples from Lake Victoria catchment. Samples were collected during the short rain, dry and wet seasons and analysed using gas chromatography equipped... Tipo: Proceedings Paper Palavras-chave: Pollutants; Catchment area; Pesticides; Chemical pollutants; Toxicity; Freshwater lakes; Pollution effects; Environmental impact; Inland water environment; Pollutant persistence. Ano: 2006 URL: http://hdl.handle.net/1834/1475 Transport de polluants dans la lagune de Bizerte simule par un modèle de circulation de l’eau OceanDocs Harzallah, A.. لقد تم تطبيق نموذج حسابي لتمثيل تنقل المياه وتسرب المواد الملوثة في بحيرة بنزرت. يتكون النموذج من ثلاثة أبعاد وهو يأخذ في الحسبان تبادل كميات المياه، الأملاح والطاقة بين البحيرة والبيئة المحيطة بها. وفي هذا النموذج مثالي حسابي لتسرب المواد الملوثة اللاتفاعلية. لقد تم تطبيق النموذج لتمثيل تسرب هذه المواد من موقع في جنوب غرب البحيرة ثم في أهم المواقع حول البحيرة. ولقد استعملت الرياح التي قيست والمد والجزر من البحر. لقد أثبتت النتائج ان المواد الملوثة تتبخر في المياه في خلال بضع ساعات. Tipo: Journal Contribution Palavras-chave: Pollution monitoring; Pollutants; Industrial wastes; Transport; Models. Ano: 2003 URL: http://hdl.handle.net/1834/1114 Use of sawdust Eucalyptus sp. in the preparation of activated carbons Ciência e Agrotecnologia Couto,Gabriela Martucci; Dessimoni,Anelise Lima de Abreu; Bianchi,Maria Lúcia; Perígolo,Deise Morone; Trugilho,Paulo Fernando. Wood sawdust is a solid residue, generated in the timber industry, which is of no profitable use and can cause serious environmental problems if disposed inadequately. The aim of this study was to use the eucalyptus sawdust in the preparation of activated carbons AC) and test them as adsorbents of methylene blue (MB) and phenol, representative pollutants from aqueous effluents of various industries. The eucalyptus sawdust was characterized by instrumental analysis such as elementary analysis (CHNS-O), thermogravimetric analysis (TGA), infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). The activated carbons were prepared by physical activation with carbon dioxide AC_CO2, (10º C min-1, 850º C, 1h) and by chemical activation with potassium... Tipo: Info:eu-repo/semantics/article Palavras-chave: Agro-industrial residues; Adsorbents; Pollutants. Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542012000100009 Registros recuperados: 16 Primeira ... 1 ... Última

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