(Table 3) Stable isotope composition of sof t tissues of specimens from the Sea of Okhotsk
We discovered and investigated several cold-seep sites in four depth zones of the Sea of Okhotsk off Northeast Sakhalin: outer shelf (160–250 m), upper slope (250–450 m), intermediate slope (450–800 m), and Derugin Basin (1450–1600 m). Active seepage of free methane or methane-rich fluids was detect...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.769751 2023-05-15T17:52:43+02:00 (Table 3) Stable isotope composition of sof t tissues of specimens from the Sea of Okhotsk Sahling, Heiko Galkin, Sergey V Salyuk, Anatoly Greinert, Jens Foerstel, Hilmar Piepenburg, Dieter Suess, Erwin MEDIAN LATITUDE: 53.282753 * MEDIAN LONGITUDE: 145.878710 * SOUTH-BOUND LATITUDE: 48.309500 * WEST-BOUND LONGITUDE: 143.981283 * NORTH-BOUND LATITUDE: 54.445683 * EAST-BOUND LONGITUDE: 151.824750 * DATE/TIME START: 1998-08-16T05:30:00 * DATE/TIME END: 1999-09-14T11:26:00 * MINIMUM ELEVATION: -2500.0 m * MAXIMUM ELEVATION: -382.0 m 2003-09-20 text/tab-separated-values, 264 data points https://doi.pangaea.de/10.1594/PANGAEA.769751 https://doi.org/10.1594/PANGAEA.769751 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.769751 https://doi.org/10.1594/PANGAEA.769751 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Sahling, Heiko; Galkin, Sergey V; Salyuk, Anatoly; Greinert, Jens; Foerstel, Hilmar; Piepenburg, Dieter; Suess, Erwin (2003): Depth-related structure and ecological significance of cold-seep communities - A case study from the Sea of Okhotsk. Deep Sea Research Part I: Oceanographic Research Papers, 50(12), 1391-1409, https://doi.org/10.1016/j.dsr.2003.08.004 Akademik M.A. Lavrentiev Area/locality Dredge DRG Event label GE99/KOMEX_VI GE99-25-1 GE99-28-1 KOMEX KOMEX I Kurile-Okhotsk Sea Marine Experiment LV28 LV28-16-2 LV28-30-2 LV28-30-3 LV28-30-4 LV28-30-5 LV28-36-1 LV28-38-1 LV28-47-1 Marshal Gelovany Mass spectrometry Material MUC MultiCorer Obzhirov flare Sea of Okhotsk Species Taxon/taxa TRAWL Trawl net δ13C organic carbon δ15N gas Dataset 2003 ftpangaea https://doi.org/10.1594/PANGAEA.769751 https://doi.org/10.1016/j.dsr.2003.08.004 2023-01-20T08:52:39Z We discovered and investigated several cold-seep sites in four depth zones of the Sea of Okhotsk off Northeast Sakhalin: outer shelf (160–250 m), upper slope (250–450 m), intermediate slope (450–800 m), and Derugin Basin (1450–1600 m). Active seepage of free methane or methane-rich fluids was detected in each zone. However, seabed photography and sampling revealed that the number of chemoautotrophic species decreases dramatically with decreasing water depth. At greatest depths in the Derugin Basin, the seeps were inhabited by bacterial mats and bivalves of the families Vesicomyidae (Calyptogena aff. pacifica, C. rectimargo, Archivesica sp.), Solemyidae (Acharax sp.) and Thyasiridae (Conchocele bisecta). In addition, pogonophoran tubeworms of the family Sclerolinidae were found in barite edifices. At the shallowest sites, on the shelf at 160 m, the seeps lack chemoautotrophic macrofauna; their locations were indicated only by the patchy occurrence of bacterial mats. Typical seep-endemic metazoans with chemosynthetic symbionts were confined to seep sites at depths below 370 m. A comparative analysis of the structure of seep and background communities suggests that differences in predation pressure may be an important determinant of this pattern. The abundance of predators such as carnivorous brachyurans and asteroids, which can invade seeps from adjacent habitats and efficiently prey on sessile seep bivalves, decreased very pronouncedly with depth. We conclude from the obvious correlation with the conspicuous pattern in the distribution of seep assemblages that, on the shelf and at the upper slope, predator pressure may be high enough to effectively impede any successful settlement of viable populations of seep-endemic metazoans. However, there was also evidence that other depth-related factors, such as bottom-water current, sedimentary regimes, oxygen concentrations and the supply of suitable settling substrates, may additionally regulate the distribution of seep fauna in the area. As a consequence of the ... Dataset okhotsk sea Sakhalin PANGAEA - Data Publisher for Earth & Environmental Science Okhotsk ENVELOPE(143.981283,151.824750,54.445683,48.309500) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Akademik M.A. Lavrentiev Area/locality Dredge DRG Event label GE99/KOMEX_VI GE99-25-1 GE99-28-1 KOMEX KOMEX I Kurile-Okhotsk Sea Marine Experiment LV28 LV28-16-2 LV28-30-2 LV28-30-3 LV28-30-4 LV28-30-5 LV28-36-1 LV28-38-1 LV28-47-1 Marshal Gelovany Mass spectrometry Material MUC MultiCorer Obzhirov flare Sea of Okhotsk Species Taxon/taxa TRAWL Trawl net δ13C organic carbon δ15N gas |
spellingShingle |
Akademik M.A. Lavrentiev Area/locality Dredge DRG Event label GE99/KOMEX_VI GE99-25-1 GE99-28-1 KOMEX KOMEX I Kurile-Okhotsk Sea Marine Experiment LV28 LV28-16-2 LV28-30-2 LV28-30-3 LV28-30-4 LV28-30-5 LV28-36-1 LV28-38-1 LV28-47-1 Marshal Gelovany Mass spectrometry Material MUC MultiCorer Obzhirov flare Sea of Okhotsk Species Taxon/taxa TRAWL Trawl net δ13C organic carbon δ15N gas Sahling, Heiko Galkin, Sergey V Salyuk, Anatoly Greinert, Jens Foerstel, Hilmar Piepenburg, Dieter Suess, Erwin (Table 3) Stable isotope composition of sof t tissues of specimens from the Sea of Okhotsk |
topic_facet |
Akademik M.A. Lavrentiev Area/locality Dredge DRG Event label GE99/KOMEX_VI GE99-25-1 GE99-28-1 KOMEX KOMEX I Kurile-Okhotsk Sea Marine Experiment LV28 LV28-16-2 LV28-30-2 LV28-30-3 LV28-30-4 LV28-30-5 LV28-36-1 LV28-38-1 LV28-47-1 Marshal Gelovany Mass spectrometry Material MUC MultiCorer Obzhirov flare Sea of Okhotsk Species Taxon/taxa TRAWL Trawl net δ13C organic carbon δ15N gas |
description |
We discovered and investigated several cold-seep sites in four depth zones of the Sea of Okhotsk off Northeast Sakhalin: outer shelf (160–250 m), upper slope (250–450 m), intermediate slope (450–800 m), and Derugin Basin (1450–1600 m). Active seepage of free methane or methane-rich fluids was detected in each zone. However, seabed photography and sampling revealed that the number of chemoautotrophic species decreases dramatically with decreasing water depth. At greatest depths in the Derugin Basin, the seeps were inhabited by bacterial mats and bivalves of the families Vesicomyidae (Calyptogena aff. pacifica, C. rectimargo, Archivesica sp.), Solemyidae (Acharax sp.) and Thyasiridae (Conchocele bisecta). In addition, pogonophoran tubeworms of the family Sclerolinidae were found in barite edifices. At the shallowest sites, on the shelf at 160 m, the seeps lack chemoautotrophic macrofauna; their locations were indicated only by the patchy occurrence of bacterial mats. Typical seep-endemic metazoans with chemosynthetic symbionts were confined to seep sites at depths below 370 m. A comparative analysis of the structure of seep and background communities suggests that differences in predation pressure may be an important determinant of this pattern. The abundance of predators such as carnivorous brachyurans and asteroids, which can invade seeps from adjacent habitats and efficiently prey on sessile seep bivalves, decreased very pronouncedly with depth. We conclude from the obvious correlation with the conspicuous pattern in the distribution of seep assemblages that, on the shelf and at the upper slope, predator pressure may be high enough to effectively impede any successful settlement of viable populations of seep-endemic metazoans. However, there was also evidence that other depth-related factors, such as bottom-water current, sedimentary regimes, oxygen concentrations and the supply of suitable settling substrates, may additionally regulate the distribution of seep fauna in the area. As a consequence of the ... |
format |
Dataset |
author |
Sahling, Heiko Galkin, Sergey V Salyuk, Anatoly Greinert, Jens Foerstel, Hilmar Piepenburg, Dieter Suess, Erwin |
author_facet |
Sahling, Heiko Galkin, Sergey V Salyuk, Anatoly Greinert, Jens Foerstel, Hilmar Piepenburg, Dieter Suess, Erwin |
author_sort |
Sahling, Heiko |
title |
(Table 3) Stable isotope composition of sof t tissues of specimens from the Sea of Okhotsk |
title_short |
(Table 3) Stable isotope composition of sof t tissues of specimens from the Sea of Okhotsk |
title_full |
(Table 3) Stable isotope composition of sof t tissues of specimens from the Sea of Okhotsk |
title_fullStr |
(Table 3) Stable isotope composition of sof t tissues of specimens from the Sea of Okhotsk |
title_full_unstemmed |
(Table 3) Stable isotope composition of sof t tissues of specimens from the Sea of Okhotsk |
title_sort |
(table 3) stable isotope composition of sof t tissues of specimens from the sea of okhotsk |
publisher |
PANGAEA |
publishDate |
2003 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.769751 https://doi.org/10.1594/PANGAEA.769751 |
op_coverage |
MEDIAN LATITUDE: 53.282753 * MEDIAN LONGITUDE: 145.878710 * SOUTH-BOUND LATITUDE: 48.309500 * WEST-BOUND LONGITUDE: 143.981283 * NORTH-BOUND LATITUDE: 54.445683 * EAST-BOUND LONGITUDE: 151.824750 * DATE/TIME START: 1998-08-16T05:30:00 * DATE/TIME END: 1999-09-14T11:26:00 * MINIMUM ELEVATION: -2500.0 m * MAXIMUM ELEVATION: -382.0 m |
long_lat |
ENVELOPE(143.981283,151.824750,54.445683,48.309500) |
geographic |
Okhotsk |
geographic_facet |
Okhotsk |
genre |
okhotsk sea Sakhalin |
genre_facet |
okhotsk sea Sakhalin |
op_source |
Supplement to: Sahling, Heiko; Galkin, Sergey V; Salyuk, Anatoly; Greinert, Jens; Foerstel, Hilmar; Piepenburg, Dieter; Suess, Erwin (2003): Depth-related structure and ecological significance of cold-seep communities - A case study from the Sea of Okhotsk. Deep Sea Research Part I: Oceanographic Research Papers, 50(12), 1391-1409, https://doi.org/10.1016/j.dsr.2003.08.004 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.769751 https://doi.org/10.1594/PANGAEA.769751 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.769751 https://doi.org/10.1016/j.dsr.2003.08.004 |
_version_ |
1766160416473350144 |