On giant shoulders: how a seamount affects the microbialcommunity composition of seawater and sponges
Seamounts represent ideal systems to study the influence and interdependency of environmental gradients at a single geographic location. These topographic features represent a prominent habitat for various forms of life, including microbiota and macrobiota, spanning benthic as well as pelagic organi...
Published in: | Biogeosciences |
---|---|
Main Authors: | , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Copernicus Publications
2020
|
Subjects: | |
Online Access: | https://hdl.handle.net/11250/2755428 https://doi.org/10.5194/bg-17-3471-2020 |
id |
ftunivbergen:oai:bora.uib.no:11250/2755428 |
---|---|
record_format |
openpolar |
spelling |
ftunivbergen:oai:bora.uib.no:11250/2755428 2023-05-15T15:14:54+02:00 On giant shoulders: how a seamount affects the microbialcommunity composition of seawater and sponges Busch, Kathrin Hanz, Ulrike Mienis, Furu Mueller, Benjamin Franke, Andre Roberts, Emyr Martyn Tomas Rapp, Hans Tore Hentschel, Ute 2020 application/pdf https://hdl.handle.net/11250/2755428 https://doi.org/10.5194/bg-17-3471-2020 eng eng Copernicus Publications urn:issn:1726-4170 https://hdl.handle.net/11250/2755428 https://doi.org/10.5194/bg-17-3471-2020 cristin:1824648 Biogeosciences. 2020, 17 (13), 3471–3486. Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no Copyright Author(s) 2020. Biogeosciences 17 13 3471–3486 Journal article Peer reviewed 2020 ftunivbergen https://doi.org/10.5194/bg-17-3471-2020 2023-03-14T17:41:46Z Seamounts represent ideal systems to study the influence and interdependency of environmental gradients at a single geographic location. These topographic features represent a prominent habitat for various forms of life, including microbiota and macrobiota, spanning benthic as well as pelagic organisms. While it is known that seamounts are globally abundant structures, it still remains unclear how and to which extent the complexity of the sea floor is intertwined with the local oceanographic mosaic, biogeochemistry, and microbiology of a seamount ecosystem. Along these lines, the present study aimed to explore whether and to what extent seamounts can have an imprint on the microbial community composition of seawater and of sessile benthic invertebrates, sponges. For our high-resolution sampling approach of microbial diversity (16S rRNA gene amplicon sequencing) along with measurements of inorganic nutrients and other biogeochemical parameters, we focused on the Schulz Bank seamount ecosystem, a sponge ground ecosystem which is located on the Arctic Mid-Ocean Ridge. Seawater samples were collected at two sampling depths (mid-water, MW, and near-bed water, BW) from a total of 19 sampling sites. With a clustering approach we defined microbial microhabitats within the pelagic realm at Schulz Bank, which were mapped onto the seamount's topography and related to various environmental parameters (such as suspended particulate matter, SPM; dissolved inorganic carbon, DIC; silicate, SiO−4; phosphate, PO3−4; ammonia, NH+4; nitrate, NO2−3; nitrite, NO−2; depth; and dissolved oxygen, O2). The results of our study reveal a “seamount effect” (sensu stricto) on the microbial mid-water pelagic community at least 200 m above the sea floor. Further, we observed a strong spatial heterogeneity in the pelagic microbial landscape across the seamount, with planktonic microbial communities reflecting oscillatory and circulatory water movements, as well as processes of bentho-pelagic coupling. Depth, NO2−3, SiO−4, and O2 concentrations ... Article in Journal/Newspaper Arctic University of Bergen: Bergen Open Research Archive (BORA-UiB) Arctic Schulz Bank ENVELOPE(7.500,7.500,73.867,73.867) Biogeosciences 17 13 3471 3486 |
institution |
Open Polar |
collection |
University of Bergen: Bergen Open Research Archive (BORA-UiB) |
op_collection_id |
ftunivbergen |
language |
English |
description |
Seamounts represent ideal systems to study the influence and interdependency of environmental gradients at a single geographic location. These topographic features represent a prominent habitat for various forms of life, including microbiota and macrobiota, spanning benthic as well as pelagic organisms. While it is known that seamounts are globally abundant structures, it still remains unclear how and to which extent the complexity of the sea floor is intertwined with the local oceanographic mosaic, biogeochemistry, and microbiology of a seamount ecosystem. Along these lines, the present study aimed to explore whether and to what extent seamounts can have an imprint on the microbial community composition of seawater and of sessile benthic invertebrates, sponges. For our high-resolution sampling approach of microbial diversity (16S rRNA gene amplicon sequencing) along with measurements of inorganic nutrients and other biogeochemical parameters, we focused on the Schulz Bank seamount ecosystem, a sponge ground ecosystem which is located on the Arctic Mid-Ocean Ridge. Seawater samples were collected at two sampling depths (mid-water, MW, and near-bed water, BW) from a total of 19 sampling sites. With a clustering approach we defined microbial microhabitats within the pelagic realm at Schulz Bank, which were mapped onto the seamount's topography and related to various environmental parameters (such as suspended particulate matter, SPM; dissolved inorganic carbon, DIC; silicate, SiO−4; phosphate, PO3−4; ammonia, NH+4; nitrate, NO2−3; nitrite, NO−2; depth; and dissolved oxygen, O2). The results of our study reveal a “seamount effect” (sensu stricto) on the microbial mid-water pelagic community at least 200 m above the sea floor. Further, we observed a strong spatial heterogeneity in the pelagic microbial landscape across the seamount, with planktonic microbial communities reflecting oscillatory and circulatory water movements, as well as processes of bentho-pelagic coupling. Depth, NO2−3, SiO−4, and O2 concentrations ... |
format |
Article in Journal/Newspaper |
author |
Busch, Kathrin Hanz, Ulrike Mienis, Furu Mueller, Benjamin Franke, Andre Roberts, Emyr Martyn Tomas Rapp, Hans Tore Hentschel, Ute |
spellingShingle |
Busch, Kathrin Hanz, Ulrike Mienis, Furu Mueller, Benjamin Franke, Andre Roberts, Emyr Martyn Tomas Rapp, Hans Tore Hentschel, Ute On giant shoulders: how a seamount affects the microbialcommunity composition of seawater and sponges |
author_facet |
Busch, Kathrin Hanz, Ulrike Mienis, Furu Mueller, Benjamin Franke, Andre Roberts, Emyr Martyn Tomas Rapp, Hans Tore Hentschel, Ute |
author_sort |
Busch, Kathrin |
title |
On giant shoulders: how a seamount affects the microbialcommunity composition of seawater and sponges |
title_short |
On giant shoulders: how a seamount affects the microbialcommunity composition of seawater and sponges |
title_full |
On giant shoulders: how a seamount affects the microbialcommunity composition of seawater and sponges |
title_fullStr |
On giant shoulders: how a seamount affects the microbialcommunity composition of seawater and sponges |
title_full_unstemmed |
On giant shoulders: how a seamount affects the microbialcommunity composition of seawater and sponges |
title_sort |
on giant shoulders: how a seamount affects the microbialcommunity composition of seawater and sponges |
publisher |
Copernicus Publications |
publishDate |
2020 |
url |
https://hdl.handle.net/11250/2755428 https://doi.org/10.5194/bg-17-3471-2020 |
long_lat |
ENVELOPE(7.500,7.500,73.867,73.867) |
geographic |
Arctic Schulz Bank |
geographic_facet |
Arctic Schulz Bank |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Biogeosciences 17 13 3471–3486 |
op_relation |
urn:issn:1726-4170 https://hdl.handle.net/11250/2755428 https://doi.org/10.5194/bg-17-3471-2020 cristin:1824648 Biogeosciences. 2020, 17 (13), 3471–3486. |
op_rights |
Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no Copyright Author(s) 2020. |
op_doi |
https://doi.org/10.5194/bg-17-3471-2020 |
container_title |
Biogeosciences |
container_volume |
17 |
container_issue |
13 |
container_start_page |
3471 |
op_container_end_page |
3486 |
_version_ |
1766345291369283584 |