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| Registros recuperados: 200 | |
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| Wilhelm Filho,D.; Torres,M.A.; Tribess,T.B.; Pedrosa,R.C.; Soares,C.H.L.. |
| The livers of Geophagus brasiliensis collected from both a non-polluted site and a polluted site were analyzed for different antioxidant defenses, O2 consumption, thiobarbituric acid-reactive substance (TBARS) levels, and histological damage. Compared to controls (116.6 ± 26.1 nmol g-1), TBARS levels were enhanced at the polluted site (284.2 ± 25.6 nmol g-1), as also was oxygen consumption (86.6 ± 11.3 and 128.5 ± 9.8 µmol O2 min-1 g-1, respectively). With respect to enzymatic antioxidants, increased catalase activities (8.7 ± 1.3 and 29.2 ± 2.4 mmol min-1 g-1, respectively), unchanged superoxide dismutase activities (767.2 ± 113.3 and 563.3 ± 70.2 U g-1, respectively), and diminished glutathione S-transferase activities (29.0 ± 3.2 and 14.9 ± 3.2 µmol... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Oxyradicals; Antioxidant defenses; Fish; Acará; Season; Pollution; Adaptation. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2001000600004 |
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| Akpabli, R.K.. |
| The countries bordering the Golf of Guinea are the Ivory Coast, Ghana, Togo, Benin, Nigeria, Cameroon, Guinea Equatorial, Gabon and Sao-Tome-et-Principe (which is actually an Island in the Golf of Guinea). These countries together make up about one third of the population of Sub-Saharan-Africa. In the coastal zones the population has considerably increased. Abidjan, the capital of the Ivory Coast, is estimated to have a population of 2.5 million. With a yearly growth rate of 5% it will augment to 8 million in 2025. In Nigeria, Lagos, which is situated in the coastal zone, has more than 9 million inhabitants. In Cameroon, Duala, which is situated in the estuary Wouri, has more than 1.4 million inhabitants. In Ghana, Accra and its metroplitan zone has... |
| Tipo: Conference Material |
Palavras-chave: Coastal zone; Pollution. |
| Ano: 2000 |
URL: http://hdl.handle.net/1834/300 |
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| Gabbadon, P.; Banjoo, D.; Bullock, C.; Norville, W.; Sookbir, S.; LLoyd, G.; Ragbirsingh, Y.; Juman, R.; Chin, X.; de Souza, G.; Lall, R.; Rambarath-Parasram, V.; O'Brien-Delpesh, C.. |
| "The Institute of Marine Affairs (IMA) is investigating the impacts of pollution from land-based sources and activities of the Caroni River Basin (CRB) on the marine environment... The project will investigate the types, sources, levels of pollution, fate of pollutants, and potential impacts on the marine environment. In addition, the project will investigate the impacts of physical alterations of habitats caused by land uses in the Caroni River Basin." |
| Tipo: Other |
Palavras-chave: Pollution; Marine environment; River basins; Pollution; Marine environment; River basins; Http://aims.fao.org/aos/agrovoc/c_6077; Http://aims.fao.org/aos/agrovoc/c_4610; Http://aims.fao.org/aos/agrovoc/c_6613. |
| Ano: 2006 |
URL: http://hdl.handle.net/1834/2911 |
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| Hamada, Koichi. |
| 1968 was an epoch-making year in the Japanese economic history, or in the Japanese history in general. In this centennial year after the Meiji restoration, Japan's GNP became the second largest in the world surpassing West Germany. Japan was cruising on one of the most rapid growth trajectories, but it was anticipating the shade of future changes. Student movements flourished, being synchronized the world over, pollution in urban areas erupted and inflationary pressure began to surface. Japan's balance of current account turned into a pattern of chronic surplus, the pattern that led to the collapse of the Bretton Woods regime. In the socio-economic sense, 1968 was a reflection point of Japan's high growth period. This paper describes the economic forces... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Japan; High growth period; Student movements; Collapse of Bretton Woods; Pollution; Political Economy. |
| Ano: 1996 |
URL: http://purl.umn.edu/28487 |
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| Le Bec, Claude; Carreras, Antoni; Comps, Marie-annick. |
| Sometimes, the monitoring network results provide an inhibited point of view to understand bacteriological process on the field. We must go further in contamination spatial or temporal structures to obtain a global picture. At Leucate, if a part of bacteriological contamination is correlated to precipitations, the main environmental factor to explain local variability seems to be the monthly variability population. This fact, completed by a spatial design, reveals a concentric gradient in the shellfish farrning area. Sorne hypothesis are discussed to explain this contamination (resurgence, aquatic birds droppings, ...) |
| Tipo: Text |
Palavras-chave: Lagune; Méditerranée; Leucate; Salses; Pollution; Coliforrnes therrnotolérants; Règlementation.; Lagoon; Mediterranean; Leucate; Salses; Pollution; Therrnotolerant coliforrns; Legislation.. |
| Ano: 1997 |
URL: http://archimer.ifremer.fr/doc/00073/18424/15969.pdf |
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| Komatsu, T. |
| The Seto Inland Sea is the largest enclosed sea in Japan (22,000 km(2) surface area), and is very shallow (average depth of 37 m). Large Zostera marina L. beds throughout the Sea play an important role in its ecosystems and environments. This study reviews the long-term changes in the area of the Zostera beds, as well as some direct and indirect environmental factors which influence their distribution. In 1924, the area of the beds was 4,137 ha in the waters of the Okayama Prefecture, By 1989, 87 % of these beds had been lost. Industrialization and urbanization around the coasts of the Seto Inland Sea began in the 1950s. In the 1960s, the area of the Zostera beds in this Sea amounted to 22,625 ha. Since 1977, 70 % of these beds has been lost. This decline... |
| Tipo: Text |
Palavras-chave: Zostera bed; Long-term change; Pollution; Reclamation; Transparency. |
| Ano: 1997 |
URL: http://archimer.ifremer.fr/doc/00093/20391/18058.pdf |
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| Paragahawewa, Upananda Herath. |
| There are at least five general reasons why market-based policies fail to address some of the most basic environmental objectives. This study evaluates the available biophysical and economic data against these criteria and concludes that market-based approaches should be employed cautiously in pollution control under the present system and the available technology for farming in the lake area. The most effective market-based instrument to control pollution, in this case, seems to be negative incentives, as the public net cost of farming is extremely higher than the private net benefits. However, the intensity of taxes that would be effective in this regard would definitely results negative net farm benefits. The principle alternative, emission trading,... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Pollution; Market-based policies; Emission trading; Environmental Economics and Policy. |
| Ano: 2006 |
URL: http://purl.umn.edu/31975 |
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| Catherine, Martial. |
| L'évolution des conditions de contrôle de la qualité des eaux conchylicoles, a abouti, à partir de 1979, à la mise en place progressive d'une réglementation européenne relative aux conditions sanitaires des zones de production et à la mise en marché de mollusques bivalves vivants (directive du Conseil (CEE) du 15 juillet 1991). Cette directive impose la mise en place d'un système de surveillance périodique. Le choix de la stratégie d'échantillonnage est laissé à l'initiative de l'autorité compétente de chaque Etat, en fonction des normes définies. L'imprécision des mesures de densité bactérienne, la variabilité des contaminations dans l'espace et le temps, le degré de représentativité de l'échantillonnage montre l'étendue des difficultés rencontrées lors... |
| Tipo: Text |
Palavras-chave: Eaux conchylicoles; Pollution; Coliformes fécaux; Normes; Stratégie d'échantillonnage; Plan de sondage; Statistique; Guide méthodologique. |
| Ano: 1992 |
URL: http://archimer.ifremer.fr/doc/00107/21809/19384.pdf |
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| Registros recuperados: 200 | |
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