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Registros recuperados: 40
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A fenntarthatóság mérése az erdőgazdaságban AgEcon
Somogyi, Zoltan.
A fenntarthatóság mérése, de definiálása is nehézkes a jövőre vonatkozó feltételezések bizonytalansága miatt. Korlátozott következtetések vonhatók le pl. a „kereslet és kínálat” összehasonlításának elvén alapuló, egyre közismertebb ökológiai lábnyomból, vagy más, a fenntarthatóság bizonyos aspektusait részletesebben jellemző indikátorok tényleges értékeinek és az előre elvárt értékek összevetéséből. Ilyen, fejlődő, korlátozott lehetőségeket nyújtó indikátorrendszer jött létre az erdőgazdálkodásban. A rendszer használatát nagymértékben korlátozza, hogy megalapozatlan az, hogy hány, illetve mennyire specifikus vagy mennyire aggregált indikátorokat alkalmaznak, és hogy az indikátorok mért értékeit hogyan értelmezik. Emiatt az indikátorértékek értelmezésében...
Tipo: Journal Article Palavras-chave: Fenntartható fejlődés; Erdőgazdálkodás; Fenntarthatósági indikátor; Bioindikátor; Sustainable development; Forest management; Sustainability indicator; Bioindicator; Crop Production/Industries; Environmental Economics and Policy.
Ano: 2009 URL: http://purl.umn.edu/92482
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Abelhas Euglossini (Apidae) de áreas de Mata Atlântica: abundância, riqueza e aspectos biológicos Zoologia
Peruquetti,Rui Carlos; Campos,Lúcio Antonio de Oliveira; Coelho,Claudia Diniz Pinto; Abrantes,Célio Vicente Machado; Lisboa,Luciane Cristina de Oliveira.
Collection data of Euglossinae males from Parque Estadual do Rio Doce (PERD) and Viçosa, both areas with remnants of Atlantic Rain Forest (Mata Atlântica) in Minas Gerais state, Brazil are presented. Comparisons made among three fragments with different sizes and states of disturbance from Viçosa showed differences in abundance of most common species and apparently, Eulaema nigrita Lepeletir, 1841 can be an useful indicator of disturbed sites. Some populations of euglossine bees seems to be restrict to a forest fragment, there being few or no flow of individuals or species of one fragment to another, even when they are only 1 km apart. 15 species of euglossines were sampled in PERD, and the most abundant was Eulaema cingulata (Fabricius, 1804). At Viçosa,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Apidae; Euglossini; Atlantic Forest; Conservation; Bioindicator.
Ano: 1999 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751999000600012
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Alterações histológicas em placas ósseas do peixe cascudo Rineloricaria strigilata (Hensel) (Teleostei, Loricariidae) e sua freqüência no lago Guaíba, Rio Grande do Sul, Brasil Zoologia
Flores-Lopes,Fábio; Malabarba,Luiz R.; Pereira,Edson H.L.; Silva,José F. Pezzi da.
Little information is available about natural populations of fishes exposed to polluted waters in Brazil. Contaminants may be lethal or predispose fishes to sickness, being the analysis of aquatic organisms a good indicator of environmental quality. The violinha, Rineloricaria strigilata (Hensel, 1868), is a common loricariid catfish in the Guaíba lake basin, Rio Grande do Sul, Brazil, and has been selected as a bioindicator for being resident, occurring in more than 50% of the samples, and by showing externally detectable neoplasies. These are characterized by its dark pigmentation, bony plates hypertrophy, and hypertrophy and irregular arrangement of the odontodes. Histology showed hypertrophied epitelial tissues, with an increased number of secretory...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Rineloricaria strigilata; Bioindicator; Neoplasm.
Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752001000300006
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Application of rapid bioassessment protocols (RBP) for benthic macroinvertebrates in Brazil: comparison between sampling techniques and mesh sizes Neotropical Entomology
Buss,Daniel F.; Borges,Erika L..
This study is part of the effort to test and to establish Rapid Bioassessment Protocols (RBP) using benthic macroinvertebrates as indicators of the water quality of wadeable streams in south-east Brazil. We compared the cost-effectiveness of sampling devices frequently used in RBPs, Surber and Kick-net samplers, and of three mesh sizes (125, 250 and 500 µm). A total of 126,815 benthic macroinvertebrates were collected, representing 57 families. Samples collected with Kick method had significantly higher richness and BMWP scores in relation to Surber, but no significant increase in the effort, measured by the necessary time to process samples. No significant differences were found between samplers considering the cost/effectiveness ratio. Considering mesh...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Environmental assessment; Aquatic insect; Freshwater ecology; Biomonitoring; Bioindicator.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2008000300007
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Avifauna on small farms aiming forest management in Fernandes Pinheiro city, Parana State, Brazil PFB - Pesquisa Florestal Brasileira
Marcelino, Vânia Rossetto; Martins, Kelly Geronazzo; Figueiredo Filho, Afonso.
This work aimed to carry out a first diagnosis of local birds, concentrating in six fragments of Ombrophyllous Mixed Forest, using methods adequate to be repeated in subsequent periods. The assessment of birds on long-term may be used as local bio-indicator, especially because these areas will be managed in the future. In the sampledarea it was registered 124 species from 41 families. Four species listed in the Red Book of Threatened Fauna in the State of Paraná were recorded: Polioptila lactea (Creamy-bellied Gnatcatcher), Mesembrinibis cayennensis (Green Ibis), Accipiter superciliosus (Tiny Hawk) and Leptasthenura striolata (Striolated Tit-Spinetail). When the six forest fragments were assessed using the irregular transects method, it was registered 102...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Ombrophyllous Mixed Forest; Forest fragmentation; Bioindicator; Tree community; Birds Recursos Florestais; Engenharia Florestal; Conservação da Natureza Floresta Ombrófila Mista; Fragmentação florestal; Bioindicador; Comunidade arbórea; Aves.
Ano: 2014 URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/542
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Biology of Dittrichia viscosa, a Mediterranean ruderal plant: a review Phyton
Parolin,P; Ion Scotta,M; Bresch,C.
Dittrichia viscosa is a common plant species in the Mediterranean region which is adapted to a wide range of environmental stresses. It is an important species that can be used for phytoremediation, as bioaccumulator or bioindicator, and it has the potential for being employed in integrated pest management in the Mediterranean ecosystem due to its entomophilous character.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Allelopathy; Bioindicator; Biological control; Dittrichia; Inula; Habitat management; Host plant; Organic horticulture.
Ano: 2014 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-56572014000200005
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Brachidontes variabilis and Patella sp as quantitative biological indicators for cadmium, lead and mercury in the Lebanese coastal waters ArchiMer
Nakhle, Khaled; Cossa, Daniel; Khalaf, Ghaby; Beliaeff, Benoit.
The mussel, Brachidontes variabilis, and the limpet, Patella sp., were used as indicators to monitor cadmium, lead and mercury concentrations along the Lebanese coast. Studies were carried out in order to define the best strategy for assessing and minimizing the effects of size and physiological condition on the metal contents of the molluscs, and corrective models were constructed. Metal concentrations in surface water were measured to estimate bioconcentration factors (BCFs). The BCFs varied from 8.3 x 10(3) to 3.4 x 10(4), from 7.5 x 10(3) to 8.0 X 10(3) and from 3.0 x 10(4) to 3.2 x 10(4), for Cd, Pb and Hg, respectively. For limpets, BCFs varied from 1.7 x 10(4) to 7.4 x 10(4) for Cd, from 2.5 x 10(3) to 6 x 103 for Pb and remained fairly constant at...
Tipo: Text Palavras-chave: Lebanon; Mediterranean Sea; Bioconcentration factors; Patella sp; Brachidontes variabilis; Bioindicator; Trace metal.
Ano: 2006 URL: http://archimer.ifremer.fr/doc/2006/publication-1344.pdf
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Chironomidae assemblage structure in relation to organic enrichment of an aquatic environment Neotropical Entomology
Simião-Ferreira,Juliana; DeMarco Jr,Paulo; Mazão,Gustavo R; Carvalho,Adriana R.
In this study we determined the taxonomic diversity of larval Chironomidae upstream and downstream to discharges of the sewage treatment plant (STP) from Agro-industrial District of Anápolis, State of Goiás, Brazil. Additionally, we evaluated the use of the lognormal distribution as a measure of biotic integrity of this system. The Chironomidae communities were sampled in three sites, upstream and downstream of the discharge of the sewage treatment plant (STP). We fitted the truncate lognormal distribution based on a nonlinear regression of the datasets using least squares as loss function in an iterative quasi-Newton procedure. The total of 21,498 individuals were sampled, from 24 Chironomidae genera, Chironomus, Polypedilum, Rheotanytarsus e...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Environment disturbance; Lognormal model; Bioindicator.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2009000400004
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Copper Induced Lysosomal Membrane Destabilisation in Haemolymph Cells of Mediterranean Green Crab (Carcinus aestuarii, Nardo, 1847) from the Narta Lagoon (Albania) BABT
Aliko,Valbona; Hajdaraj,Gerta; Caci,Atenisa; Faggio,Caterina.
ABSTRACTDestabilisation of blood cell lysosomes in Mediterranean green crabCarcinus aestuarii was investigated using Neutral Red Retention Assay (NRRA). Crabs collected in Narta Lagoon, Vlora (Albania) during May 2014 were exposed in the laboratory to sub-lethal, environmentally realistic concentrations of copper. Neutral Red Retention Time (NRRT) and glucose concentration in haemolymph of animals were measured. The mean NRRT showed a significant reduction for the animals of the treatment group compared to the control one (from 118.6 ± 28.4 to 36.4 ± 10.48 min, p<0.05), indicating damage of lysosomal membrane. Haemolymph glucose concentration was significantly higher in the treatment group (from 37.8 ± 2.7 to 137.8.4 ± 16.2 mg/dL, p<0.05) than in...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Carcinus aestuarii; Neutral red retention assay; Lysosomal membrane destabilization; Bioindicator; Copper.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132015000500750
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Cricket singing means rain: semiotic meaning of insects in the district of Pedra Branca, Bahia State, northeastern Brazil Anais da ABC (AABC)
Costa Neto,Eraldo M..
This paper deals with the semiotic meanings which are given both to the appearance and/or behavior of insect species according to the ethnoentomological knowledge of the inhabitants of the village of Pedra Branca, Bahia State, Brazil. Data were collected from February to May 2001 by performing open-ended, recorded interviews with nine men and twenty-five women, whose ages ranged from 19 to 82 years old. Data were analyzed by using the union model, which involves considering all available information on the surveyed subject. Twelve kinds of insects were associated with both beneficial and harmful events, as well as with the indication of changing weather. The way local people perceive and interpret the appearance and/or behavior of certain species of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bioindicator; Ethnoentomology; Folk knowledge; Semiotic meaning.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652006000100007
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Cytogenotoxicity of rice crop water after application of the tricyclazole fungicide Anais da ABC (AABC)
WANDSCHEER,ALANA C.D.; MARCHESAN,ENIO; TEDESCO,SOLANGE B.; FRESCURA,VIVIANE DAL-SOUTO; SOARES,CAMILLE F.; LONDERO,GUILHERME P.; TELÓ,GUSTAVO M.; HANSEL,DÂMARIS S.S..
ABSTRACT Tricyclazole is currently one of the fungicides recommended for the treatment of diseases in irrigated rice. However, there is relatively little information on its cytotoxic and genotoxic potential. The objective of this study was to evaluate the cytotoxicity and genotoxicity of rice crop water after apllication of the tricyclazole fungicide through the Allium cepa L. test. The rice crop water samplings were collected before and 1, 15 and 30 days after application of the fungicide in rice plant shoots. The Allium cepa roots were placed in contact with the rice crop water to check for possible chromosomal abnormalities and mitotic index of the bioindicators meristematic cells. The data obtained by the Allium cepa test indicates that the application...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bioindicator; Chromosomal abnormalities; Mitotic index; Pesticide; Irrigated rice.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000301251
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Diagnostic and prognostic characteristics of phytotoxicity caused by fluoride on Spondias dulcis Forst. F. (Anacardiaceae) Anais da ABC (AABC)
Sant'Anna-Santos,Bruno F.; Azevedo,Aristéa A.; Silva,Luzimar C.; Oliva,Marco A..
The goal of this study was to determine the symptoms and microscopic damage caused by fluoride on Spondias dulcis, a fluoride-sensitive species. The plants were exposed to simulated fog with fluoride (0, 5, 10, 15 and 20 mg L-1) for 20 min daily during four consecutive days. Samples from leaflets without any apparent fluoride injury were collected to microscopic analysis. The percentage of necrosed leaf area was measured, and the level of pollutant in the dry matter from the basal and apical portions of the plant was determined. The necroses began 24 h after the first simulation mainly from the base of the leaflets. A higher level of necrosis was observed at the apical portion of the plants, a region of higher fluoride accumulation. The damage on the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Leaf anatomy; Bioindicator; Necrosis; Pollution; Symptomatology.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652012000300011
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Direct and indirect toxic effects of cotton-derived cellulose nanofibres on filamentous green algae. Repositório Alice
MUNK, M.; BRANDAO, H. de M.; NOWAK, S.; MOUTON, L.; GERN, J. C.; GUIMARAES, A. S.; YÉPRÉMIAN, C.; COUTÉ, A.; RAPOSO, N. R. B.; MARCONCINI, J. M.; BRAYNER, R..
Recently, cellulose nanofibers (CNFs) have attracted considerable attention as natural, abundant polymers with excellent mechanical properties and biodegradability. CNFs provide a new materials platform for the sustainable production of high-performance nano-enable products for various applications. Given the increasing rates of CNF production, the potential for their release to the environment and the subsequent impact on ecosystem is becoming an increasing concern that needs to be addressed. Here, we used the Klebsormidium flaccidum as a bioindicator organism of terrestrial and freshwater habitats pollution using a battery of biomarkers. Our results show that cotton CNFs inhibit the proliferation of algae and induce morphological changes in them. The two...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Bioindicator; Klebsormidium flaccidum; Nanoecotoxicology; Nanomaterials.
Ano: 2015 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1037610
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Edaphic arthropods in different successional stages of Atlantic forest and abandoned. Repositório Alice
FERREIRA, C. dos R.; SOUZA, R. C. de; CORREIA, M. E. F.; RESENDE, A. S. de; ANJOS, L. H. C. dos; PEREIRA, M. G..
The vegetation may modifies the structure and composition of the community of edaphic arthropods. This study aimed to compare the community of edaphic arthropods in four areas of abandoned pasture (AP1, AP2, AP3, AP4) and four secondary native forest fragments in a successional gradient (FF1, FF2, FF3, FF4), in Itaboraí, Rio de Janeiro, Brazil. The areas are positioned on the hillside and the sampling was conducted in transects outlined in a toposequence (upper, middle and lower sections), where pitfall traps were installed in the dry season. The organisms were identified in taxonomic groups (class, order and family). Comparing the averages for AP and FF, there was no defined pattern in terms of the response of structural attributes (total abundance,...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Bioindicator; Forest fragmentation; Forest regeneration.
Ano: 2017 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1087233
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Edge effects on the orchid-bee fauna (Hymenoptera: Apidae) at a large remnant of Atlantic Rain Forest in southeastern Brazil Neotropical Entomology
Nemésio,André; Silveira,Fernando A..
Male orchid bees were sampled with chemical baits monthly from July 1999 to April 2000 at six sites situated at different distances from the forest edge (0 to 4,000 m) at Parque Estadual do Rio Doce, the largest remnant of Atlantic Forest in the state of Minas Gerais, southeastern Brazil. The main goal of this study was to assess the abundance, richness, and the community structure of the orchid-bee fauna at different distances from the edge. In all, 1,183 males from 20 species were collected. Only minor and insignificant variation in richness and abundance were observed among the sites. Two dominant species, Euglossa analis Westwood (Hymenoptera: Apidae) and Eulaema cingulata (Fabricius) (Hymenoptera: Apidae), showed strongly opposing habitat...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Insecta; Euglossina; Bioindicator; Conservation.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2006000300004
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Efeito do óxido de grafeno no crescimento da microalga Pseudokirchneriella subcapitata sob influência de substâncias húmicas. Repositório Alice
SOUZA, L. C. de; CASTANHA, R. F.; DOMINGOS, N.; CASTRO, V. L. S. S. de; JONSSON, C. M..
O grafeno é um nanomaterial promissor na remoção de pesticidas de águas, transporte de fármacos em medicamentos e transporte de agroquimicos em formulações. A qualidade do lodo agrícola usado como biofertilizante pode ser comprometida já que é esperado que materiais a base de grafeno estejam presentes nas estações de tratamento de efluentes em quantidades consideráveis A microalga Pseudokirchneriella subcapitata é uma clorofícea bioindicadora que tem sido amplamente utilizada em estudos de ecotoxicidade de poluentes e recomendada no registro de agentes químicos e biopesticidas. No presente trabalho avaliou-se o efeito do óxido de grafeno (OG) na taxa de crescimento de culturas desse organismo-teste, sob diferentes concentrações do nanomaterial e de...
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Pseudokirchneriella subcapitata; Grafeno; Nanomaterial; Bioindicator; Pseudokirchneriella subcapitata; Nanomaterial; Composto químico; Toxidez; Microalga; Ecotoxicology; Graphene oxide; Humic substances; Microalgae; Indicator species.
Ano: 2017 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1084273
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Frequency of mentum deformity in Chironomus sancticaroli (Diptera: Chironomidae) in a laboratory culture. Repositório Alice
SILVA, M. S. G. M. e; MARIGO, A. L. S.; VIVEIROS, W.; KUHLMANN, M. L..
Abstract: The midge Chironomus sancticaroli (Diptera: Chironomidae) has been used in ecotoxicological tests because it is sensitive to a variety of inorganic pollutants. Among the parameters used to evaluate the toxicity of a substance is the frequency of mentum deformity, which is part of the oral system of this organism. However, there is still no consensus on the baseline level (percentage) of acceptable deformities in laboratory cultures not exposed to pollutants. The determination of this variable is important to ensure the validity of bioassays and to compare cultures from different research and teaching institutions. Once this value is established, it will also be used to monitor the quality of organisms cultured, since factors such as inbreeding...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Bioindicator; Bioindicadores; Ecotoxicologia; Endocruzamento; Organismo Aquático; Díptera; Toxicologia; Aquatic insects; Ecotoxicology; Environmental indicators; Indicator species; Inbreeding.
Ano: 2019 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1116330
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Honey as a bioindicator of arsenic contamination due to volcanic and mining activities in Chile Chilean J. Agric. Res.
Bastías,José M; Jambon,Philippe; Muñoz,Ociel; Manquián,Nimia; Bahamonde,Patricia; Neira,Miguel.
The content of heavy metals in honey is indicative of natural or anthropogenic pollution and has therefore been proposed as a feasible bioindicator for arsenic contamination in different regions of Chile. Total arsenic (t-As) and inorganic As (i-As) concentrations were determined in 227 samples of honey harvested during the years 2007, 2008, and 2009 in the areas of San Pedro de Atacama, Atacama, Chiloé, and Futaleufú, with the last town located 156 km from the Chaitén Volcano (latest eruption in 2008). These analyses were conducted using an atomic absorption spectrophotometer coupled with a hydride generator. In the honey samples, the concentrations of t-As ranged from 2.2 to 171.9 &#956;g kg-1, and the i-As concentrations ranged from none detected...
Tipo: Journal article Palavras-chave: Honey; Bioindicator; Total arsenic; Inorganic arsenic; Pollution.
Ano: 2013 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392013000200010
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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
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Le mercure, le cadmium et le plomb dans les eaux littorales libanaises: apports et suivi au moyen de bioindicateurs quantitatifs (éponges, bivalves et gastéropodes) ArchiMer
Nakhle, Khaled.
In 1975, the meeting for the protection of the Mediterranean Sea in Barcelona fixed several important objectives. One of them was the creation of National Observation Programs in order to evaluate the levels and tendencies of pollutants. Furthermore the MED-POL program has re-evaluated and developed these objectives. Lebanon has signed the Barcelona Convention and has been engaged in providing data about its coastal water quality. Unfortunately the Lebanese war, which also began in 1975, paralyzed the country for 15 years. Since 1990, successive governments in the country have fixed as an objective the reconstruction of the tourism sector. As a consequence, they became interested in the environmental problems. The studies carried out before or during the...
Tipo: Text Palavras-chave: Lebanon; Coastal water; D.g.t.; Transplant; Sponge; Patella; Brachidonte; Trace metal; Bioindicator; Liban; Eaux côtières; D.g.t.; Transplant; Eponge; Patelle; Brachidonte; Métal trace; Bioindicateur.
Ano: 2003 URL: http://archimer.ifremer.fr/doc/2003/these-83.pdf
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