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	Provedor de dados R. Bras. Zootec. (4) Autor Souza,Luiz Waldemar de Oliveira (4) Albuquerque,Ricardo de (2) Borgatti,Laura Maria de Oliveira (2) Martins,Bianca Almeida Brandão (2) Andrade,André Furugen Cesar (1) Anzai,Nelson Haruo (1) Arruda,Rubens Paes de (1) Celeghini,Eneiva Carla Carvalho (1) Leal,Paulo Ademar Martins (1) Moretti,Anibal de Sant'Anna (1) Negrão,João Alberto (1) Oliveira,Tatiana Mendes (1) Robassini,Simi Luiza Durante Aflalo (1) Souza,Nedilse Helena de (1) Tucci,Fernanda Marcussi (1) Vitti,Dorinha Miriam Silber Schmidt (1) Mais... Palavra-chave Available phosphorus (2) Bone ash (1) Bone strength (1) Broiler (1) Bull (1) Cevada (1) Disponibilidade (1) Farelo de soja (1) Frango de corte (1) Fósforo (1) Hormone (1) Milho (1) Performance (1) Phosphorus excretion (1) Phytate (1) Piglets (1) RIA (1) Semen (1) Spermatozoa (1) Testosterone (1) Mais... Tipo do documento Info:eu-repo/semantics/article (4) Ano 2013 (1) 2011 (1) 2009 (2) País Brazil (4) Idioma Inglês (3) Português (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 79 Primeira ... 1 2 3 4 ... Última Development of a flow-through system for the study of toxicity and bioaccumulation processes in aquatic invertebrates OMA Blust, R.; Decleir, W.. A flow-through test system for the study of toxicity and bioaccumulation processes is described. The apparatus can operate within a very wide range of flow rates. Flow deviations are less than 2% and the variation in test-agent concentration, (determined for copper) ranges from 3 to 8%. As a practical test a copper-toxicity experiment on adult <i>Artemia</i> was carried out and the results compared with data obtained from a similar but static assay. The results indicate that: - bioassay and accumulation experiments must preferably be carried out under flow-through conditions to keep the concentration and bioavailability of the toxicant as constant as possible;- the data analysis must be based upon measured test-solution toxicant-concentrations... Tipo: Info:eu-repo/semantics/article Palavras-chave: Bioaccumulation; Marine invertebrates; Toxicity tests. Ano: 1984 URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3261 Milieu vivant: Synthese des discussions ArchiMer Retiere, C. After a general note the author reports the effects of pollutants in organisms, in particular, sublethal effects and bioaccumulation. Tipo: Text Palavras-chave: Estuarine organisms; Sublethal effects; Environmental impact; Estuaries; Bioaccumulation; Pollution effects; Brackishwater pollution. Ano: 1985 URL: http://archimer.ifremer.fr/doc/1985/acte-1311.pdf Biological availability of sediment-bound trace metals. ArchiMer Luoma, S. It has been established that direct uptake of (at least some) trace metals from sediments contributes to metal concentrations in benthic organisms. Important controls on metal uptake from sediment are the concentration of the exposure, the partitioning of the metals among components of the sediment, and the redox potential of the sediment. Important problems in ecology, physiology, geochemistry and biogeochemistry remain unresolved, however, and a concentrated interdisciplinary research effort will be necessary before a complete understanding of the fate and impact of sediment-bound metals will be possible. Tipo: Text Palavras-chave: Bioaccumulation; Benthos; Food webs; Biogeochemical cycle; Sediments; Availability; Trace metals. Ano: 1985 URL: http://archimer.ifremer.fr/doc/1985/acte-1302.pdf La Baie de Seine: Peuplements et especes benthiques en regime perturbe ArchiMer Cabioch, L; Retiere, C. The waters of the Seine River are polluted by urban, industrial and agricultural effluents. In addition direct industrial wastes inputs are emptied into the estuary. Within the limits of the Seine Bay program it was not possible to research pollution impacts on every estuarine ecosystem link; so only benthos have been studied. To take time response of organisms into account, the authors have defined indicators or quantitative evaluation of parameters, reflecting physiological state. They have studied population fluctuations caused by natural or man induced effects. Tipo: Text Palavras-chave: Hydrodynamics; Population dynamics; Population structure; Bioaccumulation; Pollution effects; Marine pollution; Ecosystem disturbance; Benthos. Ano: 1985 URL: http://archimer.ifremer.fr/doc/1985/acte-1304.pdf Contamination de l'estuaire et de la baie de Seine par le PCB-Bilan des etudes ArchiMer Abarnou, Alain; Simon, S. This report is a synthesis of data concerning PCB concentrations in water, sediments and organisms (Bivalvia, Malacostraca, Pisces). Water analysis shows that Seine River is the primordial factor affecting PCB dispersion in the bay. Sediment contamination is higher near estuary along Calvados coast. PCB levels in Mytilidae and in Pectinidae set the problem of polluant origin, dispersion and effects on estuarine organisms. Tipo: Text Palavras-chave: Bioaccumulation; Sediment pollution; Water pollution; PCB; Environmental impact. Ano: 1985 URL: http://archimer.ifremer.fr/doc/1985/acte-1319.pdf Interet de la microscopie analytique pour l''etude d''impact de metaux traces et de terres rares sur le milieu vivant. Application a l''etude d''une zone polluee: La Baie de Seine ArchiMer Chassard Bouchaud, C; Noel, Philippe; Hubert, M; Hallegot, P. To study bioaccumulation and metabolism of trace metals (silver-lead-copper-iron-uranium) and rare earths (lanthanium) in estuarine organisms (Crangon crangon, Mytilus edulis, Abra Alba, Cutellus pellucidus, Owenia furiformis ) the authors use in situ microanalysis associated with electronic or photonic microscopy. Tipo: Text Palavras-chave: Rare earths; Trace metals; Bioaccumulation; Pollution effects; Microscopy. Ano: 1985 URL: http://archimer.ifremer.fr/doc/1985/acte-1305.pdf Comportement chimique et geochimique des elements a l'état de traces dans l'estuaire de la Seine: Synthese des discussions ArchiMer Guegueniat, P. In the synthesis of discussions about the chemistry of the Seine Bay, the author after a note on natural references for metal concentrations, speaks about fluorides, nutrients, PCB, and metallic elements. In conclusion some suggestions about pollutants transfer towards ecosystems link, are enumerated. Tipo: Text Palavras-chave: PCB; Fluorides; Chemical pollution; Trace metals; Food webs; Bioaccumulation; Biogeochemical cycle; Trace elements. Ano: 1985 URL: http://archimer.ifremer.fr/doc/1985/acte-1303.pdf Paralytic phycotoxin uptake by scallops (Pecten maximus) ArchiMer Lassus, Patrick; Bardouil, Michele; Ledoux, Martial; Murail, Ingrid; Bohec, Madeleine; Truquet, Philippe; Frémy, Jean-marc; Rohmer, Véronique. It is difficult to apply sanitary standards for mollusc contamination by paralytic shellfish poisoning to animals not consumed whole. This problem is illustrated by the 1990 embargo on a Japanese shipment of frozen scallop muscle and gonad: the sanitary threshold applied to digestive gland (in Japan) does not guarantee that muscle and especially gonad are toxin-free. Accordingly, we performed experimental contaminations of scallops (Pecten maximus) from Port-en-Bessin (Normandy, France) using a toxic Japanese strain of Alexandrium tamarense. During the contamination/decontamination experiment on different tissues (digestive gland, muscle, gonad), extracts were obtained using cold acetic acid 0.1 N to maintain the perfect integrity of the toxin profile.... Tipo: Text Palavras-chave: Alexandrium tamarense; Phycotoxines; Bioaccumulation; Profils toxiniques; Pecten maximus; Patinopecten yessoensis; Alexandrium tamarense; Phycotoxins; Bioaccumulation; Toxin profiles; Patinopecten yessoensis; Pecten maximus. Ano: 1992 URL: http://archimer.ifremer.fr/doc/00189/30075/28563.pdf Chemical composition of some marine algae from the mediterranean sea of alexandria, egypt OceanDocs El-Sarraf, W.M.; El-Shaarawy, G.. No abstract is included Tipo: Journal Contribution Palavras-chave: Accumulation; Bioaccumulation; Biochemical composition; Algae; Bioaccumulation. Ano: 1994 URL: http://hdl.handle.net/1834/1243 Efflorescences toxiques des eaux côtières françaises. Ecologie, écophysiologie, toxicologie ArchiMer Berland, Brigitte; Lassus, Patrick. Tandis que certa ines efflorescences micro-algales provoquent de sérieuses nuisances par leur développement exubérant, d'autres sont nocives en raison des toxines qu'elles produisent. Ces proliférations,  dangereuses pour les organismes marins, mais aussi pour les consommateurs de fruits de mer, sont étudiées en France depuis 1983. Dès 1989, devant l'ampleur des phénomènes observés au niveau national et européen, un programme scientifique réunissant de nombreux in stituts et laboratoires, le PNEAT, a été créé afin de fédérer les moyens mis en oeuvre dans des disci plines aussi diverses que l'écologie, la biologie cellulaire, l'écophysiologie, la toxicologie et la chimie. Les résultats obtenus au cours de la période 1989-1995 sont présentés à la fois pour... Tipo: Text Palavras-chave: Efflorescences; Cycle biologique; Allélopathie; Taxonomie; Ecophysiologie; Broutage; Phycotoxines; Toxicologie; Chimie extractive; Toxinogenèse; Bioaccumulation. Ano: 1997 URL: https://archimer.ifremer.fr/doc/00450/56179/57726.pdf Bioaccumulation des métaux chez le mytilidae hydrothermal Bathymodiolus sp. de la ride médio-atlantique ArchiMer Rousse, N; Boulegue, J; Cosson, Rp; Fiala-medioni, A. The hydrothermal environment is characterised, among other things, by a high metal concentration, related to the convective sea-water circulation inside the oceanic crust and its interaction with basaltic rocks. The biological communities associated with the hydrothermal system can survive in this toxic environment owing to their ability to regulate their intracellular metal levels by excretion or accumulation of metal ions in non-toxic forms. Various detoxification processes have been previously studied within an hydrothermal organism: immobilisation and precipitation of the metal in lysosomal systems, or binding to specific and soluble ligands such as metallothioneins. The later are heat stable and characterised by a high content of cysteine. The... Tipo: Text Palavras-chave: Bio-accumulation; Métallothionéines; Lysosomes; Toxicité; Hydrothermal; Bioaccumulation; Metallothioneins; Lysosomes; Toxicity; Hydrothermal. Ano: 1998 URL: http://archimer.ifremer.fr/doc/00325/43662/43238.pdf Variation de l’accumulation du lindane chez les alevins de <Liza ramada> OceanDocs Masmoudi, W.; Romdhane, M.S.; Kheriji, S.; El Cafsi, M.. Pendant la saison printanière de recrutement maximale (avril/mai2000) des alevins de Liza ramada , nous avons effectué 4 campagnes de pêche au niveau de l’embouchure de canal « Khélij ». Les alevins de cette espèce ainsi collectés ont été repartis en trois classes de taille (classe I :19,4  1,3 mm ; classe II : 45,5  5,3 mm et classe III : 63,2  6,3mm) dans le but d’y analyser les résidus du lindane (  HCH ), un pesticide organochloré. Nos résultats ont révélé des concentrations de ce résidu chutant de 57,42  12,49 à 12,67  3,27 ng/ g de graisse en passant de la classe I à la classe III. Cette diminution est probablement due à une amélioration avec l’âge des capacités métaboliques de l’espèce vis à vis du contaminant. D’un autre côté, Liza... Tipo: Journal Contribution Palavras-chave: Alevins; Liza ramada; Lindane; Croissance; Bioaccumulation; Fry; Growth Bioaccumulation Fry Growth Lindane Pesticides Fry Bioaccumulation Growth Lindane Pesticides http://aims.fao.org/aos/agrovoc/c_11037 http://aims.fao.org/aos/agrovoc/c_32389 http://aims.fao.org/aos/agrovoc/c_3394 http://aims.fao.org/aos/agrovoc/c_31402 http://aims.fao.org/aos/agrovoc/c_5739. Ano: 2001 URL: http://hdl.handle.net/1834/3706 Bioaccumulation of silver and the isolation of metal-binding protein from P.diminuta BABT Ibrahim,Zaharah; Ahmad,Wan Azlina; Baba,Abu Bakar. A silver uptake study by Pseudomonas diminuta was carried out by growing the bacteria in a chloride-free medium (CFM) containing silver ions (50 muM) in a batch culture. From the results, it was found that higher amounts of silver were accumulated inside the cell during early exponential phase compared to the amount bound at the cell surface. This suggested a possible mechanism for metal uptake during bacterial growth. In view of this, attempts were made to isolate proteins which might be associated with silver-binding properties from cultures of P.diminuta grown in the presence and absence of silver. The proteins were first extracted from the bacterial cultures by precipitation with ammonium sulfate followed by purification using isoelectric focussing and... Tipo: Info:eu-repo/semantics/article Palavras-chave: Bioaccumulation; Metal-binding proteins; Pseudomonas diminuta. Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132001000300001 Bioaccumulation of copper, zinc, cadmium and lead by Bacillus sp., Bacillus cereus, Bacillus sphaericus and Bacillus subtilis BJM Costa,Antonio Carlos Augusto da; Duta,Flavia Pereira. This work presents some results on the use of microbes from the genus Bacillus for uptake of cadmium, zinc, copper and lead ions. Maximum copper bioaccumulations were 5.6 mol/g biomass for B. sphaericus, 5.9 mol/g biomass for B. cereus and B. subtilis, and 6.4 mol/g biomass for Bacillus sp. Maximum zinc bioaccumulations were 4.3 mol/g biomass for B. sphaericus, 4.6 mol/g biomass for B. cereus, 4.8 mol/g biomass for Bacillus sp. and 5.0 mol/g biomass for B. subtilis. Maximum cadmium bioaccumulations were 8.0 mol/g biomass for B. cereus, 9.5 mol/g biomass for B. subtilis, 10.8 mol/g biomass for Bacillus sp. and 11.8 mol/g biomass for B. sphaericus. Maximum lead biomaccumulations were 0.7 mol/g biomass for B. sphaericus, 1.1 mol/g biomass for B. cereus, 1.4... Tipo: Info:eu-repo/semantics/article Palavras-chave: Bioaccumulation; Bacillus; Heavy metals. Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822001000100001 Analyse et comparaison des niveaux de contamination en Polychlorobiphényles et pesticides organochlorés dans les foies de juvéniles de soles provenant de nourriceries du Golfe de Gascogne, de la Baie de Seine et de la Somme ArchiMer Jegaden, Marine. Ce rapport de stage (2 mois et demi) traite du dosage de contaminants organiques, les Polychlorobiphényles (PCB) et les pesticides organochlorés chez les juvéniles de soles, dans différentes zones côtières de nourriceries sur le littoral français en Manche Est et dans le Golfe de Gascogne. Ces composés, hydrophobes, persistants et potentiellement bioaccumulables, se trouvent concentrés dans les tissus des poissons et en particulier dans le foie, riche en lipides. Les 16 congénères de PCB et les pesticides organochlorés sont dosés selon un protocole comprenant trois étapes : l'extraction, la purification par chromatographie d'adsorption pour séparer les composés, puis la quantification par chromatographie en phase gazeuse munie d'un détecteur à capture... Tipo: Text Palavras-chave: Soles; Nourriceries; PCB; Pesticides organochlorés; Bioaccumulation; Métabolisation; Réseau National d'Observation. Ano: 2002 URL: http://archimer.ifremer.fr/doc/00444/55522/57110.pdf Metal bioaccumulation and storage forms in the shrimp, Rimicaris exoculata, from the Rainbow hydrothermal field (Mid-Atlantic Ridge); preliminary approach to the fluid-organism relationship ArchiMer Geret, Florence; Riso, Ricardo; Sarradin, Pierre-marie; Caprais, Jean-claude; Cosson, Richard P. At the Rainbow hydrothermal site the concentrations of metals in the fluid are the highest observed in the Mid-Atlantic Ridge hydrothermal areas, and the shrimps Rimicaris exoculata were observed forming dense swarms in small depressions on the chimney walls. In order to understand the fluid-organism relationship, we investigated the relative abundance of metals in the water surrounding R. exoculata and their bioaccumulation by the shrimps. This first approach stresses a net metal enrichment around R. exoculata. Precipitation, scavenging and oxidative redissolution processes in the mixing zone are controlling the concentrations of metals. Their bioaccumulation varies according to their bioavailability in the surrounding water. Metals are abundant as... Tipo: Text Palavras-chave: Hydrothermal fluid; Rimicaris exoculata; Metals; Bioaccumulation; Rainbow. Ano: 2002 URL: http://archimer.ifremer.fr/doc/00186/29762/28204.pdf Uptake of free and complexed silver ions by different strains of Rhodotorula mucilaginosa BJM Gomes,Newton C.M.; Rosa,Carlos A.; Pimentel,Patrícia F.; Mendonça-Hagler,Leda C.S.. Five strains of Rhodotorula mucilaginosa were tested for the ability to accumulate free and complexed silver ions by metabolism-dependent and -independent processes. The ability to take up Ag+ was observed in both live and dead biomass, whereas silver dicyanide [Ag (CN)2-] uptake was strictly glucose dependent. In contrast to Ag (CN)2-, glucose addition inhibited by 16 to 25% the Ag+ uptake rate of living UFMG - Y02, Y27, and Y35 cells, while strains CBS 316 and UFMG-Y01 showed an improved uptake rate of about 115% and 13%, respectively. The Langmuir sorption model was used to evaluate the silver sorption capability of the R. mucilaginosa strains. The calculated q max value suggested that R. mucilaginosa strains UFMG-Y27 had the highest loading capacity.... Tipo: Info:eu-repo/semantics/article Palavras-chave: Bioaccumulation; Biosorption; Rhodotorula mucilaginosa; Silver. Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822002000100013 Modeling trace metal accumulation in the mediterranean mussel, mytilus galloprovincialis ArchiMer Casas, Stellio; Cossa, Daniel; Gonzalez, Jean-louis; Bacher, Cedric; Andral, Bruno. Monitoring coastal contamination by trace metals pollution using mollusks bivalves as quantitative bioindicators is widely performed in many international biomonitoring programs. In this purpose, modeling metal dynamic in marine mussels is a reliable tool. It allows understanding the bioaccumulation process which results from the interactions between biological, chemical and environmental factors. To calibrate such a model, kinetic experiments on uptake and elimination were conducted on three Mediterranean sites chosen on the basis of their different nutritive and chemical characteristics. Tipo: Text Palavras-chave: Growth; Heavy metals; Bioaccumulation; Mytilus galloprovincialis; Bioindicator. Ano: 2004 URL: http://archimer.ifremer.fr/doc/2004/acte-370.pdf In situ kinetics of mercury bioaccumulation in mytilus galloprovincialis estimated by transplantation experiments ArchiMer Casas, Stellio; Cossa, Daniel; Gonzalez, Jean-louis; Bacher, Cedric; Andral, Bruno. Monitoring coastal contamination by trace metals pollution using mollusks bivalves as quantitative bioindicators is widely performed in many international biomonitoring programs. For this purpose, studying mercury dynamic in marine mussels is a reliable tool. In situ experiments on uptake and elimination kinetics were conducted in three Mediterranean sites, chosen on the basis of their contamination levels. Mussels were transplanted from a clean area to a highly contaminated one and then transferred back to a clean site. This approach makes it possible to define bioaccumulation factors and uptake and elimination rates consistently with the real environmental conditions. Tipo: Text Palavras-chave: Transplantation; Heavy metals; Bioaccumulation; Mytilus galloprovincialis; Bioindicator. Ano: 2004 URL: http://archimer.ifremer.fr/doc/2004/acte-369.pdf L'élevage conchylicole sur filière : revue bibliographique ArchiMer Robert, Stephane; Prou, Jean; Le Moine, Olivier; Taillade, Sylvie. La revue bibliographie de l'élevage conchylicole sur filière permet de situer l'évolution de cette technique en France et dans le monde. Elle regroupe les travaux disponibles tant sur les méthodes et les techniques, que sur les contraintes biologiques et environnementales qui conditionnent ce type d'élevage. Les techniques d'élevage conchylicole sur filières sont directement dépendantes de l' environnement disponible. Si l'élevage sur filière de surface nécessite des zones protégées peu disponibles sur le littoral atlantique, la filière de sub-surface correspond mieux aux possibilités de développement en site semi-abrité tels que les Pertuis charentais. L'élevage en filières immergées permet d'envisager la recherche de nouveau espace en mer ouverte comme... Tipo: Text Palavras-chave: Algue toxique; Bioaccumulation; Capacité trophique; Compétiteur; Densité élevge; Elevage en suspendu; Filière; Eutrophisation; Génétique; Matière particulaire; Mer ouverte; Mortalité; Phytoplancton; Pollution; Production primarie; Technique élevage; Transfert de biotope. Ano: 2004 URL: http://archimer.ifremer.fr/doc/00074/18510/16050.pdf Registros recuperados: 79 Primeira ... 1 2 3 4 ... Última

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