A qualitative assessment of the influence of bioturbation in Lake Baikal sediments
peer reviewed The impact of bioturbation in Lake Baikal sediments, particularly on rhythmic layering and mixing, was assessed by studying the actual vertical distribution of benthic animals in continuous accumulation zones selected by seismic survey (Vydrino, Shoulder, Posolskoe Bank, Continent Ridg...
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Language: | English |
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Elsevier Science Bv
2005
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Online Access: | https://orbi.uliege.be/handle/2268/6215 https://orbi.uliege.be/bitstream/2268/6215/1/GPC05%20bioturbation%20baikal%20PM.pdf https://doi.org/10.1016/j.gloplacha.2004.11.012 |
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ftorbi:oai:orbi.ulg.ac.be:2268/6215 2024-04-21T08:13:07+00:00 A qualitative assessment of the influence of bioturbation in Lake Baikal sediments Martin, Patrick Boes, Xavier Goddeeris, Baudouin Fagel, Nathalie 2005-04 https://orbi.uliege.be/handle/2268/6215 https://orbi.uliege.be/bitstream/2268/6215/1/GPC05%20bioturbation%20baikal%20PM.pdf https://doi.org/10.1016/j.gloplacha.2004.11.012 en eng Elsevier Science Bv http://www.elsevier.com/wps/find/journaldescription.cws_home/503335/description urn:issn:0921-8181 https://orbi.uliege.be/handle/2268/6215 info:hdl:2268/6215 https://orbi.uliege.be/bitstream/2268/6215/1/GPC05%20bioturbation%20baikal%20PM.pdf doi:10.1016/j.gloplacha.2004.11.012 scopus-id:2-s2.0-18044367785 open access http://purl.org/coar/access_right/c_abf2 info:eu-repo/semantics/openAccess Global and Planetary Change, 46 (1-4), 87-99 (2005-04) bioturbation benthos sediment Lake Baikal Siberia Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique journal article http://purl.org/coar/resource_type/c_6501 info:eu-repo/semantics/article peer reviewed 2005 ftorbi https://doi.org/10.1016/j.gloplacha.2004.11.012 2024-03-27T14:42:27Z peer reviewed The impact of bioturbation in Lake Baikal sediments, particularly on rhythmic layering and mixing, was assessed by studying the actual vertical distribution of benthic animals in continuous accumulation zones selected by seismic survey (Vydrino, Shoulder, Posolskoe Bank, Continent Ridge). To assess the influence of the bioturbation, animals were extracted from short cores and identified at the relevant taxonomic level. The faunal distribution is examined in parallel with the bioturbation tracks observed in thin section. Oligochaeta, Nematoda, Ostracoda, Copepoda, Gammaridae, Chironomidae and Hydrachnidia were found inhabiting the sediment. Among them, only oligochaete worms were assumed to have a significant impact on sediment mixing because of their "conveyor belt" feeding. The other two most abundantly sampled groups, nematods and copepods, belong to the interstitial fauna that has no significant impact on the vertical displacement of sediment particles and do not ingest the sediment. The presence of a benthic fauna as deep as 15 cm in the sediment indicates that the possibility of sediment disturbance by invertebrate activity cannot be dismissed in Lake Baikal. The effect of biological mixing is more limited in the deepest stations because the number of potential bioturbators is reduced, qualitatively as well as quantitatively. Located in the abyssal zone, Continent and Vydrino (but outside turbidites) deep stations appear to be most promising sediment records for tracking climate signal at high resolution. (C) 2004 Elsevier B.V. All rights reserved. Continent Article in Journal/Newspaper Copepods Siberia University of Liège: ORBi (Open Repository and Bibliography) Global and Planetary Change 46 1-4 87 99 |
institution |
Open Polar |
collection |
University of Liège: ORBi (Open Repository and Bibliography) |
op_collection_id |
ftorbi |
language |
English |
topic |
bioturbation benthos sediment Lake Baikal Siberia Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique |
spellingShingle |
bioturbation benthos sediment Lake Baikal Siberia Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique Martin, Patrick Boes, Xavier Goddeeris, Baudouin Fagel, Nathalie A qualitative assessment of the influence of bioturbation in Lake Baikal sediments |
topic_facet |
bioturbation benthos sediment Lake Baikal Siberia Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique |
description |
peer reviewed The impact of bioturbation in Lake Baikal sediments, particularly on rhythmic layering and mixing, was assessed by studying the actual vertical distribution of benthic animals in continuous accumulation zones selected by seismic survey (Vydrino, Shoulder, Posolskoe Bank, Continent Ridge). To assess the influence of the bioturbation, animals were extracted from short cores and identified at the relevant taxonomic level. The faunal distribution is examined in parallel with the bioturbation tracks observed in thin section. Oligochaeta, Nematoda, Ostracoda, Copepoda, Gammaridae, Chironomidae and Hydrachnidia were found inhabiting the sediment. Among them, only oligochaete worms were assumed to have a significant impact on sediment mixing because of their "conveyor belt" feeding. The other two most abundantly sampled groups, nematods and copepods, belong to the interstitial fauna that has no significant impact on the vertical displacement of sediment particles and do not ingest the sediment. The presence of a benthic fauna as deep as 15 cm in the sediment indicates that the possibility of sediment disturbance by invertebrate activity cannot be dismissed in Lake Baikal. The effect of biological mixing is more limited in the deepest stations because the number of potential bioturbators is reduced, qualitatively as well as quantitatively. Located in the abyssal zone, Continent and Vydrino (but outside turbidites) deep stations appear to be most promising sediment records for tracking climate signal at high resolution. (C) 2004 Elsevier B.V. All rights reserved. Continent |
format |
Article in Journal/Newspaper |
author |
Martin, Patrick Boes, Xavier Goddeeris, Baudouin Fagel, Nathalie |
author_facet |
Martin, Patrick Boes, Xavier Goddeeris, Baudouin Fagel, Nathalie |
author_sort |
Martin, Patrick |
title |
A qualitative assessment of the influence of bioturbation in Lake Baikal sediments |
title_short |
A qualitative assessment of the influence of bioturbation in Lake Baikal sediments |
title_full |
A qualitative assessment of the influence of bioturbation in Lake Baikal sediments |
title_fullStr |
A qualitative assessment of the influence of bioturbation in Lake Baikal sediments |
title_full_unstemmed |
A qualitative assessment of the influence of bioturbation in Lake Baikal sediments |
title_sort |
qualitative assessment of the influence of bioturbation in lake baikal sediments |
publisher |
Elsevier Science Bv |
publishDate |
2005 |
url |
https://orbi.uliege.be/handle/2268/6215 https://orbi.uliege.be/bitstream/2268/6215/1/GPC05%20bioturbation%20baikal%20PM.pdf https://doi.org/10.1016/j.gloplacha.2004.11.012 |
genre |
Copepods Siberia |
genre_facet |
Copepods Siberia |
op_source |
Global and Planetary Change, 46 (1-4), 87-99 (2005-04) |
op_relation |
http://www.elsevier.com/wps/find/journaldescription.cws_home/503335/description urn:issn:0921-8181 https://orbi.uliege.be/handle/2268/6215 info:hdl:2268/6215 https://orbi.uliege.be/bitstream/2268/6215/1/GPC05%20bioturbation%20baikal%20PM.pdf doi:10.1016/j.gloplacha.2004.11.012 scopus-id:2-s2.0-18044367785 |
op_rights |
open access http://purl.org/coar/access_right/c_abf2 info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1016/j.gloplacha.2004.11.012 |
container_title |
Global and Planetary Change |
container_volume |
46 |
container_issue |
1-4 |
container_start_page |
87 |
op_container_end_page |
99 |
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1796933610056450048 |