ISSN 2070-7401 (Print), ISSN 2411-0280 (Online)
Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa


Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2014, Vol. 11, No. 3, pp. 105-116

Methane as the most important factor of water bodies degassing

P.V. Lyushvin
Moscow, Russia
In the work, it is shown how cardinally abiotic and biotic characteristics of water areas change at mass intake of methane and detritus into the photic layer. It is caused by both high toxicity of methane for the majority of trade hydrobionts, hypoxia due to methane oxidation, including methanotrophy, and reduction of the photic layer due to fine detritus that causes its additional warming up. Earlier, these phenomena were out of the focus of researchers because of their fragmentariness and rare occurrence, their impact could not be traced via abiotic and biotic data at the same time. As a result, almost each case of seismogenic warming up of water surface, seismogenic icelead, large-scale benthonic hypoxia and unexpected mortality of hydrobionts puzzled hydrologists and hydrobiologists. Their research gained special relevance in the last and current decades – a maximum of century recurrence of seismodegassing in the northwest of the Eurasian Plate. Methane concentration degassing outbursts in the near-surface atmosphere and degassing warming up of the surface, seismogenic ice leads can be observed by satellite sensors of the Earth.
Keywords: methane, earthquakes, degassing, benthonic hypoxia, hydrobionts
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