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| Bianchi, A.. |
| Bacteriological study of abyssal sediments: During the Demeraby mission of the N/O Jean Charcot in the western Atlantic Ocean, a study of the microflora of the digestive tracts of echinoderms (Holothuroidea of various genera, Asteroidea, Echinoidea) was compared with that of the surrounding sediment. The bacterial concentration observed in the digestive tracts of all the animals studied is higher than that in the surrounding sediments. The largest numbers were always found in the most anterior part of the digestive tracts of the holothurians. In some cases, the increase is considerable (7.10 versus 5.2. 10 cells per millilitre): It indicates a proliferation of bacterial cells in the anterior part of the digestive tract. As the sediment moves through the... |
| Tipo: Text |
Palavras-chave: Conchylaceous parks; Microbial communities; Abyssal sediments; Bacteriological study. |
| Ano: 1981 |
URL: http://archimer.ifremer.fr/doc/1981/rapport-1926.pdf |
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| Tagger, S.; Bianchi, A.; Julliard, M.; Le Petit, J.; Roux, B.. |
| The supply of hydrocarbons oxidizing marine bacteria to petroleum polluted sea water has not resulted in an increase in the hydrocarbons degradation potential of this water. All the allochtone species have disappeared from the dominant microflora seven days after the treatment while the autochtone bacteria show a capacity for adaptation to the petroleum products which needs about four days of petroleum-contact to appear. This confirms the advantage of a fast proliferation of these bacteria in oil slides which could be provoked by supply of immediately assimilable nitrogenous and phosphorised mineral compounds. The degradation potential of polluted water must be raised to its maximum as fast as possible after an oil spillage in order not to let the aromatic... |
| Tipo: Text |
Palavras-chave: Hydrocarbures; Milieu marin; Traitement bactériologique; Photo-oxydation; Polymérisation. |
| Ano: 1982 |
URL: http://archimer.ifremer.fr/doc/00306/41752/40963.pdf |
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