Zooplankton vertical stratification in the East-pacific and Indian sectors of the Southern Ocean
Introduction In the Southern Ocean, the large-scale distribution of zooplankton, including their abundance and community composition from the epipelagic to the upper bathypelagic layers, remains poorly understood. This gap in knowledge limits our comprehension of their ecological and biogeochemical...
Published in: | Frontiers in Marine Science |
---|---|
Main Authors: | , , , , |
Other Authors: | |
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
Frontiers Media SA
2024
|
Subjects: | |
Online Access: | http://dx.doi.org/10.3389/fmars.2024.1274582 https://www.frontiersin.org/articles/10.3389/fmars.2024.1274582/full |
id |
crfrontiers:10.3389/fmars.2024.1274582 |
---|---|
record_format |
openpolar |
spelling |
crfrontiers:10.3389/fmars.2024.1274582 2024-09-30T14:44:00+00:00 Zooplankton vertical stratification in the East-pacific and Indian sectors of the Southern Ocean Liu, Yunzhe Wang, Yanqing Sun, Yongming Yang, Guang Swadling, Kerrie M. National Natural Science Foundation of China 2024 http://dx.doi.org/10.3389/fmars.2024.1274582 https://www.frontiersin.org/articles/10.3389/fmars.2024.1274582/full unknown Frontiers Media SA https://creativecommons.org/licenses/by/4.0/ Frontiers in Marine Science volume 11 ISSN 2296-7745 journal-article 2024 crfrontiers https://doi.org/10.3389/fmars.2024.1274582 2024-09-17T04:12:28Z Introduction In the Southern Ocean, the large-scale distribution of zooplankton, including their abundance and community composition from the epipelagic to the upper bathypelagic layers, remains poorly understood. This gap in knowledge limits our comprehension of their ecological and biogeochemical roles. Methods To better understand their community structure, depth-stratified zooplankton samples were collected from 0 to 1500 m during four summers in the East-Pacific and Indian sectors of the Southern Ocean. In addition, analysis of environmental drivers including temperature, salinity, dissolved oxygen, and chlorophyll a concentration, as well as water masses was conducted. Results Our study indicates that zooplankton diversity may be similar between the two sectors, while zooplankton abundance was higher in the East-Pacific sector during different sampling months and years. Moreover, zooplankton abundance decreased with depth in both sectors. Based on cluster analysis, zooplankton communities were generally divided by either the epipelagic or the deeper layers’ communities. In both sectors, the epipelagic layer was dominated by cyclopoid copepods, such as Oithona similis and Oncaea curvata , as well as calanoid copepods including Calanoides acutus , Rhincalanus gigas , and Ctenocalanus citer , while copepods and other taxa including Chaetognatha, Amphipoda, and Ostracoda, were important contributors to the deep layer communities. Discussion Our analysis revealed that water masses, combined with their physical characteristics such as specific temperature and salinity ranges and depth, along with biological factors such as chlorophyll a concentration, might be the most important drivers for structuring zooplankton communities from epipelagic to upper bathypelagic layer. Article in Journal/Newspaper Southern Ocean Copepods Frontiers (Publisher) Southern Ocean Pacific Indian Frontiers in Marine Science 11 |
institution |
Open Polar |
collection |
Frontiers (Publisher) |
op_collection_id |
crfrontiers |
language |
unknown |
description |
Introduction In the Southern Ocean, the large-scale distribution of zooplankton, including their abundance and community composition from the epipelagic to the upper bathypelagic layers, remains poorly understood. This gap in knowledge limits our comprehension of their ecological and biogeochemical roles. Methods To better understand their community structure, depth-stratified zooplankton samples were collected from 0 to 1500 m during four summers in the East-Pacific and Indian sectors of the Southern Ocean. In addition, analysis of environmental drivers including temperature, salinity, dissolved oxygen, and chlorophyll a concentration, as well as water masses was conducted. Results Our study indicates that zooplankton diversity may be similar between the two sectors, while zooplankton abundance was higher in the East-Pacific sector during different sampling months and years. Moreover, zooplankton abundance decreased with depth in both sectors. Based on cluster analysis, zooplankton communities were generally divided by either the epipelagic or the deeper layers’ communities. In both sectors, the epipelagic layer was dominated by cyclopoid copepods, such as Oithona similis and Oncaea curvata , as well as calanoid copepods including Calanoides acutus , Rhincalanus gigas , and Ctenocalanus citer , while copepods and other taxa including Chaetognatha, Amphipoda, and Ostracoda, were important contributors to the deep layer communities. Discussion Our analysis revealed that water masses, combined with their physical characteristics such as specific temperature and salinity ranges and depth, along with biological factors such as chlorophyll a concentration, might be the most important drivers for structuring zooplankton communities from epipelagic to upper bathypelagic layer. |
author2 |
National Natural Science Foundation of China |
format |
Article in Journal/Newspaper |
author |
Liu, Yunzhe Wang, Yanqing Sun, Yongming Yang, Guang Swadling, Kerrie M. |
spellingShingle |
Liu, Yunzhe Wang, Yanqing Sun, Yongming Yang, Guang Swadling, Kerrie M. Zooplankton vertical stratification in the East-pacific and Indian sectors of the Southern Ocean |
author_facet |
Liu, Yunzhe Wang, Yanqing Sun, Yongming Yang, Guang Swadling, Kerrie M. |
author_sort |
Liu, Yunzhe |
title |
Zooplankton vertical stratification in the East-pacific and Indian sectors of the Southern Ocean |
title_short |
Zooplankton vertical stratification in the East-pacific and Indian sectors of the Southern Ocean |
title_full |
Zooplankton vertical stratification in the East-pacific and Indian sectors of the Southern Ocean |
title_fullStr |
Zooplankton vertical stratification in the East-pacific and Indian sectors of the Southern Ocean |
title_full_unstemmed |
Zooplankton vertical stratification in the East-pacific and Indian sectors of the Southern Ocean |
title_sort |
zooplankton vertical stratification in the east-pacific and indian sectors of the southern ocean |
publisher |
Frontiers Media SA |
publishDate |
2024 |
url |
http://dx.doi.org/10.3389/fmars.2024.1274582 https://www.frontiersin.org/articles/10.3389/fmars.2024.1274582/full |
geographic |
Southern Ocean Pacific Indian |
geographic_facet |
Southern Ocean Pacific Indian |
genre |
Southern Ocean Copepods |
genre_facet |
Southern Ocean Copepods |
op_source |
Frontiers in Marine Science volume 11 ISSN 2296-7745 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3389/fmars.2024.1274582 |
container_title |
Frontiers in Marine Science |
container_volume |
11 |
_version_ |
1811645535766970368 |