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| Registros recuperados: 35 | |
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| Alzieu, Claude; Heral, Maurice; Thibaud, Yves; Dardignac, Marie-jose; Feuillet, Michèle. |
| Experiments in oyster-breeding areas where oyster Crassostrea gigas suffers from anomalies of calcification, show an obvious correlation between the importance of the malformation of shells and the vicinity of port areas where a great number of boats usually stay. Organotin compounds contained in antifouling paints, and more precisely Tributyltin fluoride (TBTF) induce, in experimental environment, similar anomalies to those observed in natural environment. The amounts of total tin in the tissues of oysters living in the vicinity of spots where organotin products are brought in, can reach high values, though they appear to decrease rapidly whereas the environmental contamination lessens. The authors suggest that results of organotin upon the mechanisms of... |
| Tipo: Text |
Palavras-chave: Crassostrea gigas; Pollution effects; Toxicity; Calcification; Fouling control; Paints. |
| Ano: 1981 |
URL: http://archimer.ifremer.fr/doc/1981/publication-1898.pdf |
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| Lassus, Patrick; Maggi, Pierre; Le Baut, Claire; Bardouil, Michèle; Bocquene, Gilles; Le Dean, Loïc; Truquet, Philippe. |
| In order to estimate the effects of chlorine used in cooling systems of electric power plants on zooplankton, some experiments have been realized with the four first larval stages of the prawn (P. serratus Pennant). Chlorine injection was performed by constant adding at 16 and 20 degree C with times exposures of 5, 15 and 25 minutes. If there is no detectable variations in sensitivity of different stages, toxic effects of oxydants issued from chlorination can be observed (for both the two acclimatation temperatures) at 15 minutes exposure with a LD 50 : 32 mg/l of chlorine. |
| Tipo: Text |
Palavras-chave: Palaemon serratus; Pollution effects; Larval development; Chlorine; Toxicity. |
| Ano: 1981 |
URL: http://archimer.ifremer.fr/doc/1981/publication-1886.pdf |
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| Vethaak, A. Dick; Davies, Ian M.; Thain, John E.; Gubbins, Matthew J.; Martinez-gomez, Concepcion; Robinson, Craig D.; Moffat, Colin F.; Burgeot, Thierry; Maes, Thomas; Wosniok, Werner; Giltrap, Michelle; Lang, Thomas; Hylland, Ketil. |
| Many maritime countries in Europe have implemented marine environmental monitoring programmes which include the measurement of chemical contaminants and related biological effects. How best to integrate data obtained in these two types of monitoring into meaningful assessments has been the subject of recent efforts by the International Council for Exploration of the Sea (ICES) Expert Groups. Work within these groups has concentrated on defining a core set of chemical and biological endpoints that can be used across maritime areas, defining confounding factors, supporting parameters and protocols for measurement. The framework comprised markers for concentrations of, exposure to and effects from, contaminants. Most importantly, assessment criteria for... |
| Tipo: Text |
Palavras-chave: Chemical measurements; Biomarker; Bioassay; Pollution effects; Biomonitoring; Environmental; Impact; MSFD; ICES; OSPAR. |
| Ano: 2017 |
URL: http://archimer.ifremer.fr/doc/00283/39429/37869.pdf |
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| Vacelet, E. |
| The influence of spillage of phosphates on the bacterial population and its activity was found to be not significant (on total number) or significant but low (on the number of growing cells which was higher close to the loading area). Phosphate discharge resulted also in a significant increase of dividing cells and of enzymatic activity but its effects could be hardly separated from sewage effects. Neither solubilizing strains nor bacterial solubilization could be detected. |
| Tipo: Text |
Palavras-chave: Bacteria; Apatite; Pollution effects; Phosphates; Chemical pollution. |
| Ano: 1984 |
URL: http://archimer.ifremer.fr/doc/1984/acte-1010.pdf |
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| His, Edouard; Maurer, Daniele; Robert, Rene. |
| The spat production in the Bay of Arcachon has been recently disturbed. Bioassays using algae used as food for oyster larvae have shown that the organotin paints affect or inhibit growth of Isochrysis galbana and Chaetoceros calcitrans . Fresh waters coming into the bay and shore sediment did not affect the growth of these algae. Bioassays proposed by Woelke (1967) using embryos and larvae of Crassostrea gigas have shown that the quality of the sea water from Arcachon harbour has been improved a few months after the use of organotin paints has been prohibited. Likewise fresh waters are free from any micropollutants that could drastically disturb the reproduction of C. gigas in the bay. |
| Tipo: Text |
Palavras-chave: Marine mollusks; Pollution effects; Recruitment; Population number; Oyster culture. |
| Ano: 1984 |
URL: http://archimer.ifremer.fr/doc/1984/publication-1788.pdf |
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| Deslous-paoli, Jean-marc. |
| A bibliographic review has been made on the toxicity of ten metals for some marine larvae of commercial interest. We have classified, according to toxicity, organic salts of tin, mercury, silver, copper, zinc, nickel, lead, cadmium, chromium and manganese. Some synergistic effects of metals, temperature and salinity are described as well as the action of silt suspended in water. |
| Tipo: Text |
Palavras-chave: Mollusca; Crustacea; Pollution effects; Bibliographies; Salinity; Temperature; Synergism; Heavy metals; Toxicity. |
| Ano: 1981 |
URL: http://archimer.ifremer.fr/doc/1981/publication-1885.pdf |
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| Battersby, N; Stewart, D; Sharma, A. |
| Chemical additives are used extensively in the offshore oil industry. For secondary oil recovery, the biopolymer xanthan has been recommended as a viscosifying agent but its use may provoke microbial problems. The effect of adding xanthan to marine sediments on the growth and metabolic activity of sulphate-reducing bacteria (SRB) was studied. In all instances, its addition resulted in an increasing in SRB numbers of up to 250-fold. This was accompanied by a marked increase in the electron transport activity of the sediments when these were incubated under either aerobic or anaerobic conditions. The products formed as a result of the biodegradation of the polymer by indigenous heterotrophic bacteria in these sediments appear to have acted as suitable... |
| Tipo: Text |
Palavras-chave: Bacteria; Growth; Additives; Pollution effects; Oil recovery; Biodegradation; Polymers; Sediment pollution; Sulfate reduction. |
| Ano: 1984 |
URL: http://archimer.ifremer.fr/doc/1984/acte-1015.pdf |
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| Vallarino, E.A.. |
| El mitílido Brachidontes rodriguezii es el organismo estructurante de una compleja comunidad intermareal que se desarrolla sobre los sustratos intermareales duros (cuarcíticos y limo- loessoides), en el sudeste de la provincia de Buenos Aires (Argentina). El presente estudio se desarrolló durante los años 1997, 1998, 1999 y 2000, en áreas costeras de los alrededores de Mar del Plata (Camet); Santa Clara del Mar (Santa Elena) y en Mar de Cobo. Se determinaron cuatro estaciones de muestreo en la zona de Camet (área impactada) y dos áreas control en Santa Elena y Mar de Cobo. En cada muestreo se tomaron muestras biológicas, de sedimento retenido y de Materia orgánica, así como de las variables ambientales: temperatura, salinidad, oxígeno disuelto, turbidez y... |
| Tipo: Theses and Dissertations |
Palavras-chave: Intertidal environment; Biological sampling; Environmental factors; Pollution effects; Spatial variations; Seasonal variations; Biomass; Intertidal environment; Environmental factors; Biomass. |
| Ano: 2002 |
URL: http://hdl.handle.net/1834/2955 |
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| 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 |
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| Registros recuperados: 35 | |
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