Distribution of siphonophores in the Northwest Pacific Ocean and links to environmental conditions
Despite their abundance in marine ecosystems, studies on siphonophores are limited. In this study, 26 species of siphonophores in the Northwest Pacific Ocean were identified during multiple cruises of the R/V ISABU from 2018–2020, and various factors that may affect the occurrence of siphonophores,...
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Online Access: | http://dx.doi.org/10.3389/fmars.2023.1223477 https://www.frontiersin.org/articles/10.3389/fmars.2023.1223477/full |
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crfrontiers:10.3389/fmars.2023.1223477 2024-10-13T14:11:20+00:00 Distribution of siphonophores in the Northwest Pacific Ocean and links to environmental conditions Park, Nayeon Choi, Hyuntae Shin, Kyung-Hoon Lee, Wonchoel Ministry of Science and ICT, South Korea Ministry of Education Ministry of Oceans and Fisheries 2023 http://dx.doi.org/10.3389/fmars.2023.1223477 https://www.frontiersin.org/articles/10.3389/fmars.2023.1223477/full unknown Frontiers Media SA https://creativecommons.org/licenses/by/4.0/ Frontiers in Marine Science volume 10 ISSN 2296-7745 journal-article 2023 crfrontiers https://doi.org/10.3389/fmars.2023.1223477 2024-09-17T04:13:41Z Despite their abundance in marine ecosystems, studies on siphonophores are limited. In this study, 26 species of siphonophores in the Northwest Pacific Ocean were identified during multiple cruises of the R/V ISABU from 2018–2020, and various factors that may affect the occurrence of siphonophores, including water temperature, salinity, zooplankton biomass, and trophic niche were investigated. Statistical analysis revealed that the distribution of siphonophores and their biomass could be divided into two water mass groups, affected by the Kuroshio and Oyashio Currents. The species with high contributions to distinguishing the water mass groups (including Chelophyes contorta , Dimophyes arctica , Bassia bassensis , and Eudoxoides spiralis —mainly belonging to the Diphyidae) showed species-specific correlations with water temperature and salinity. This suggests that diphyids can be used as indicator species for currents and hydrological factors that influence water mass. The biomass of siphonophores exhibited a trend opposite to that of non-gelatinous zooplankton and showed no association with other gelatinous zooplankton. These results can be interpreted from an ecological niche perspective. Through nitrogen and carbon stable isotope analyses, the dietary sources of siphonophores could potentially overlap with those of chaetognaths or non-gelatinous zooplankton. Because the trophic position of siphonophores (2.4–3.2) also falls in the range of those of chaetognaths (2.8–3.4) and non-gelatinous zooplankton including copepods, euphausiids, and amphipods (2.4–3.5), diet competition with carnivorous mesozooplankton could be predicted. Considering that the diversity and biomass of most siphonophores are strongly positively correlated with water temperature and salinity, expansion of the Kuroshio Current is expected to lead to an increase in siphonophores in the Northwest Pacific in the future. The findings of this study are anticipated to provide novel insights into climate change prediction and response and enhance ... Article in Journal/Newspaper Zooplankton Copepods Frontiers (Publisher) Pacific Oyashio ENVELOPE(157.000,157.000,50.000,50.000) Frontiers in Marine Science 10 |
institution |
Open Polar |
collection |
Frontiers (Publisher) |
op_collection_id |
crfrontiers |
language |
unknown |
description |
Despite their abundance in marine ecosystems, studies on siphonophores are limited. In this study, 26 species of siphonophores in the Northwest Pacific Ocean were identified during multiple cruises of the R/V ISABU from 2018–2020, and various factors that may affect the occurrence of siphonophores, including water temperature, salinity, zooplankton biomass, and trophic niche were investigated. Statistical analysis revealed that the distribution of siphonophores and their biomass could be divided into two water mass groups, affected by the Kuroshio and Oyashio Currents. The species with high contributions to distinguishing the water mass groups (including Chelophyes contorta , Dimophyes arctica , Bassia bassensis , and Eudoxoides spiralis —mainly belonging to the Diphyidae) showed species-specific correlations with water temperature and salinity. This suggests that diphyids can be used as indicator species for currents and hydrological factors that influence water mass. The biomass of siphonophores exhibited a trend opposite to that of non-gelatinous zooplankton and showed no association with other gelatinous zooplankton. These results can be interpreted from an ecological niche perspective. Through nitrogen and carbon stable isotope analyses, the dietary sources of siphonophores could potentially overlap with those of chaetognaths or non-gelatinous zooplankton. Because the trophic position of siphonophores (2.4–3.2) also falls in the range of those of chaetognaths (2.8–3.4) and non-gelatinous zooplankton including copepods, euphausiids, and amphipods (2.4–3.5), diet competition with carnivorous mesozooplankton could be predicted. Considering that the diversity and biomass of most siphonophores are strongly positively correlated with water temperature and salinity, expansion of the Kuroshio Current is expected to lead to an increase in siphonophores in the Northwest Pacific in the future. The findings of this study are anticipated to provide novel insights into climate change prediction and response and enhance ... |
author2 |
Ministry of Science and ICT, South Korea Ministry of Education Ministry of Oceans and Fisheries |
format |
Article in Journal/Newspaper |
author |
Park, Nayeon Choi, Hyuntae Shin, Kyung-Hoon Lee, Wonchoel |
spellingShingle |
Park, Nayeon Choi, Hyuntae Shin, Kyung-Hoon Lee, Wonchoel Distribution of siphonophores in the Northwest Pacific Ocean and links to environmental conditions |
author_facet |
Park, Nayeon Choi, Hyuntae Shin, Kyung-Hoon Lee, Wonchoel |
author_sort |
Park, Nayeon |
title |
Distribution of siphonophores in the Northwest Pacific Ocean and links to environmental conditions |
title_short |
Distribution of siphonophores in the Northwest Pacific Ocean and links to environmental conditions |
title_full |
Distribution of siphonophores in the Northwest Pacific Ocean and links to environmental conditions |
title_fullStr |
Distribution of siphonophores in the Northwest Pacific Ocean and links to environmental conditions |
title_full_unstemmed |
Distribution of siphonophores in the Northwest Pacific Ocean and links to environmental conditions |
title_sort |
distribution of siphonophores in the northwest pacific ocean and links to environmental conditions |
publisher |
Frontiers Media SA |
publishDate |
2023 |
url |
http://dx.doi.org/10.3389/fmars.2023.1223477 https://www.frontiersin.org/articles/10.3389/fmars.2023.1223477/full |
long_lat |
ENVELOPE(157.000,157.000,50.000,50.000) |
geographic |
Pacific Oyashio |
geographic_facet |
Pacific Oyashio |
genre |
Zooplankton Copepods |
genre_facet |
Zooplankton Copepods |
op_source |
Frontiers in Marine Science volume 10 ISSN 2296-7745 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3389/fmars.2023.1223477 |
container_title |
Frontiers in Marine Science |
container_volume |
10 |
_version_ |
1812819036306669568 |