Unusual marine ecosystem in the flooded crater of Ushisher volcano
1990; Inter-Research; Volume: 65; Linguagem: Inglês
10.3354/meps065095
ISSN1616-1599
Autores Tópico(s)Methane Hydrates and Related Phenomena
ResumoThis paper reviews investigations of a manne ecosystem In Kraternaya Bight (Yanluch Island, Kurile Islands) which has arisen and is functioning under the influence of gaso-hydrothermal vents of the Ushishir volcano.The concentrations of reduced sulphur compounds and a number of metals in the vents are 2 to 3 orders of magnitude higher than in seawater around the island.Together with photosynthesis of algae, chernosynthetic bacteria play an essential part in primary production.Extreme chemical conditions in the outlets of vents have left a mark on the composition of communities and in peculiarities of certain species.Concentrations of some metals are so high that ecosystems of Kraternaya Bight can be considered as a model of sea territory with a high degree of industrial pollution.
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