Methane seeps on the outer shelf of the Laptev Sea: characteristic features, structural control, and benthic fauna

Baranov, Boris; Galkin, Sergey; Vedenin, Andrey; Dozorova, K. A.; Gebruk, Andrey; Флинт, М. В.

doi:10.1007/s00367-020-00655-7

Cited by 36 publications

(39 citation statements)

References 51 publications

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“…Station data with coordinates and depths are shown in Table 1. For additional information on methane seep fields see Flint et al (2018) and Baranov et al (2020). Table 1.…”

Section: Methodsmentioning

confidence: 99%

“…Unfortunately, no environmental data except for the echo-sounding showing gas emissions and CTD-measurements obtained from the area of the seeps from only two stations (both away from the benthic sampling sites) are available (Flint et al, 2018;Baranov et al, 2020). Nevertheless, we suggest that response of macrofauna to methane seepage at shallow depths 60-70 m can be related to very low primary productivity on the outer shelf of the Laptev Sea, dropping from ~720 mg C m -2 per day at Lena river delta to <100 mg C m -2 per day at 600 km (Sorokin & Sorokin, 1996) during September.…”

Section: Presence Of Specific Benthic Communities At C15 and Odenmentioning

confidence: 99%

“…We examined benthic communities associated with methane seeps in the Laptev Sea at two sites: C15, centred around 76°47.4′N and 125°49.5′E with depths 70-73 m and Oden, centred around 76.894°N and 127.798°E, with depths 63-67 m. Preliminary description of benthic megafauna based on video recordings obtained by ROV was published by Baranov et al (2020).…”

Section: Introductionmentioning

confidence: 99%

“…Three more grabs were taken ~200 m away from the nearest gas flare to catch background community. In 2017 and 2018 station selection was based largely on the previously mapped methane flares (Baranov et al, 2020). All the 2017 and 2018 grabs were taken above the gas flares ( Fig.…”

Section: Introductionmentioning

confidence: 99%

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Peer Review #1 of "Fauna associated with shallow-water methane seeps in the Laptev Sea (v0.1)"

Sen¹

2020

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Background. Methane seeps support unique benthic ecosystems in the deep sea existing due to chemosynthetic organic matter. In contrast, in shallow waters there is little or no effect of methane seeps on macrofauna. In the present study we focused on the recently described methane discharge area at the northern Laptev Sea shelf. The aim of this work was to describe the shallow-water methane seep macrofauna and to understand whether there are differences in macrobenthic community structure between the methane seep and background areas.

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“…Station data with coordinates and depths are shown in Table 1. For additional information on methane seep fields see Flint et al (2018) and Baranov et al (2020). Table 1.…”

Section: Methodsmentioning

confidence: 99%

Section: Presence Of Specific Benthic Communities At C15 and Odenmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Peer Review #1 of "Fauna associated with shallow-water methane seeps in the Laptev Sea (v0.1)"

Sen¹

2020

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“…A large gas seep was discovered by chance at a sea depth of 60 m in the central Laptev Sea, northwest of Kotelny Island, during a cruise of R/V Viktor Buinitsky in 2007 [67]. A year later, in 2008, a group of researchers found more than one hundred seeps, with up to 4 mm gas bubbles in water, during a cruise of R/V Yakov Smirnitsky in the Laptev shelf, in the area of New Siberian Islands at a sea depth of 50-90 m [68,91].…”

Section: Natural Gas Emissionmentioning

confidence: 99%

Evidence of Gas Emissions from Permafrost in the Russian Arctic

et al. 2020

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The active emission of gas (mainly methane) from terrestrial and subsea permafrost in the Russian Arctic has been confirmed by ample evidence. In this paper, a generalization and some systematization of gas manifestations recorded in the Russian Arctic is carried out. The published data on most typical gas emission cases have been summarized in a table and illustrated by a map. The tabulated data include location, signatures, and possible sources of each gas show, with respective references. All events of onshore and shelf gas release are divided into natural and man-caused. and the natural ones are further classified as venting from lakes or explosive emissions in dryland conditions that produce craters on the surface. Among natural gas shows on land, special attention is paid to the emission of natural gas from Arctic lakes, as well as gas emissions with craters formation. In addition, a description of the observed man-caused gas manifestations associated with the drilling of geotechnical and production wells in the Arctic region is given. The reported evidence demonstrates the effect of permafrost degradation on gas release, especially in oil and gas fields.

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Gas in Marine Sediments (GIMS): past, current, and future (contributions from GIMS-14)

Katsman

Dickens

2020

Geo-Mar Lett

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Methane seeps on the outer shelf of the Laptev Sea: characteristic features, structural control, and benthic fauna

Cited by 36 publications

References 51 publications

Peer Review #1 of "Fauna associated with shallow-water methane seeps in the Laptev Sea (v0.1)"

Peer Review #1 of "Fauna associated with shallow-water methane seeps in the Laptev Sea (v0.1)"

Evidence of Gas Emissions from Permafrost in the Russian Arctic

Gas in Marine Sediments (GIMS): past, current, and future (contributions from GIMS-14)

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