Diatom distribution in Holocene sediments from the northern West Caroline Basin (western equatorial Pacific) and their environmental significance
Diatoms are an important component of submarine biogenic sediments and often used for carrying out palaeoceanographical reconstructions. To understand the relationship between diatoms and environment in the western equatorial Pacific, diatoms from the Holocene sediments in the northern West Caroline...
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ftdoajarticles:oai:doaj.org/article:8f197846a5ce462693a354e2ddf0d315 2023-05-15T14:03:34+02:00 Diatom distribution in Holocene sediments from the northern West Caroline Basin (western equatorial Pacific) and their environmental significance Min Chen Guobiao Huang Jishang Xu Chengtao Wang Jizheng Xu Hongshuai Qi Aimei Zhang 2023-02-01T00:00:00Z https://doi.org/10.3389/fmars.2023.1110621 https://doaj.org/article/8f197846a5ce462693a354e2ddf0d315 EN eng Frontiers Media S.A. https://www.frontiersin.org/articles/10.3389/fmars.2023.1110621/full https://doaj.org/toc/2296-7745 2296-7745 doi:10.3389/fmars.2023.1110621 https://doaj.org/article/8f197846a5ce462693a354e2ddf0d315 Frontiers in Marine Science, Vol 10 (2023) diatom western equatorial Pacific environmental significance West Caroline Basin Holocene sediment Science Q General. Including nature conservation geographical distribution QH1-199.5 article 2023 ftdoajarticles https://doi.org/10.3389/fmars.2023.1110621 2023-02-12T01:29:25Z Diatoms are an important component of submarine biogenic sediments and often used for carrying out palaeoceanographical reconstructions. To understand the relationship between diatoms and environment in the western equatorial Pacific, diatoms from the Holocene sediments in the northern West Caroline Basin were selected for analysis. We made quantitative statistics on diatoms and divided diatom assemblages through cluster analysis. A total of 53 species or varieties of diatoms belonging to 22 genera were identified. The range of diatom abundance was 0-88,373 valves/g. The diatoms found were mainly oceanic warm-water species. Overall, Azpeitia nodulifera was the species with the highest contribution, followed by Hemidiscus cuneiformis and Thalassiosira pacifica with these three species together accounting for approximately 80% in this area. We identified four diatom groupings and divided the study area into three regions. Diatom assemblage I in the West Caroline Basin was mainly affected by the North Equatorial Counter Current (NECC), Antarctic Intermediate Water (AAIW) and upwelling, and the supply of nutrients was relatively high. Assemblage II in the West Caroline Ridge was less influenced by currents, and thus had lower abundance and species diversity than assemblage I. The complex diatom assemblages in the Yap Trench were probably controlled by Upper Circumpolar Deep Water (UCPW) and Lower Circumpolar Deep Water (LCPW). Article in Journal/Newspaper Antarc* Antarctic Directory of Open Access Journals: DOAJ Articles Antarctic Pacific Frontiers in Marine Science 10 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
diatom western equatorial Pacific environmental significance West Caroline Basin Holocene sediment Science Q General. Including nature conservation geographical distribution QH1-199.5 |
spellingShingle |
diatom western equatorial Pacific environmental significance West Caroline Basin Holocene sediment Science Q General. Including nature conservation geographical distribution QH1-199.5 Min Chen Guobiao Huang Jishang Xu Chengtao Wang Jizheng Xu Hongshuai Qi Aimei Zhang Diatom distribution in Holocene sediments from the northern West Caroline Basin (western equatorial Pacific) and their environmental significance |
topic_facet |
diatom western equatorial Pacific environmental significance West Caroline Basin Holocene sediment Science Q General. Including nature conservation geographical distribution QH1-199.5 |
description |
Diatoms are an important component of submarine biogenic sediments and often used for carrying out palaeoceanographical reconstructions. To understand the relationship between diatoms and environment in the western equatorial Pacific, diatoms from the Holocene sediments in the northern West Caroline Basin were selected for analysis. We made quantitative statistics on diatoms and divided diatom assemblages through cluster analysis. A total of 53 species or varieties of diatoms belonging to 22 genera were identified. The range of diatom abundance was 0-88,373 valves/g. The diatoms found were mainly oceanic warm-water species. Overall, Azpeitia nodulifera was the species with the highest contribution, followed by Hemidiscus cuneiformis and Thalassiosira pacifica with these three species together accounting for approximately 80% in this area. We identified four diatom groupings and divided the study area into three regions. Diatom assemblage I in the West Caroline Basin was mainly affected by the North Equatorial Counter Current (NECC), Antarctic Intermediate Water (AAIW) and upwelling, and the supply of nutrients was relatively high. Assemblage II in the West Caroline Ridge was less influenced by currents, and thus had lower abundance and species diversity than assemblage I. The complex diatom assemblages in the Yap Trench were probably controlled by Upper Circumpolar Deep Water (UCPW) and Lower Circumpolar Deep Water (LCPW). |
format |
Article in Journal/Newspaper |
author |
Min Chen Guobiao Huang Jishang Xu Chengtao Wang Jizheng Xu Hongshuai Qi Aimei Zhang |
author_facet |
Min Chen Guobiao Huang Jishang Xu Chengtao Wang Jizheng Xu Hongshuai Qi Aimei Zhang |
author_sort |
Min Chen |
title |
Diatom distribution in Holocene sediments from the northern West Caroline Basin (western equatorial Pacific) and their environmental significance |
title_short |
Diatom distribution in Holocene sediments from the northern West Caroline Basin (western equatorial Pacific) and their environmental significance |
title_full |
Diatom distribution in Holocene sediments from the northern West Caroline Basin (western equatorial Pacific) and their environmental significance |
title_fullStr |
Diatom distribution in Holocene sediments from the northern West Caroline Basin (western equatorial Pacific) and their environmental significance |
title_full_unstemmed |
Diatom distribution in Holocene sediments from the northern West Caroline Basin (western equatorial Pacific) and their environmental significance |
title_sort |
diatom distribution in holocene sediments from the northern west caroline basin (western equatorial pacific) and their environmental significance |
publisher |
Frontiers Media S.A. |
publishDate |
2023 |
url |
https://doi.org/10.3389/fmars.2023.1110621 https://doaj.org/article/8f197846a5ce462693a354e2ddf0d315 |
geographic |
Antarctic Pacific |
geographic_facet |
Antarctic Pacific |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Frontiers in Marine Science, Vol 10 (2023) |
op_relation |
https://www.frontiersin.org/articles/10.3389/fmars.2023.1110621/full https://doaj.org/toc/2296-7745 2296-7745 doi:10.3389/fmars.2023.1110621 https://doaj.org/article/8f197846a5ce462693a354e2ddf0d315 |
op_doi |
https://doi.org/10.3389/fmars.2023.1110621 |
container_title |
Frontiers in Marine Science |
container_volume |
10 |
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1766274266173538304 |