Role of nutrients and temperature in shaping distinct summer phytoplankton and microzooplankton population dynamics in the western North Pacific and Bering Sea
Phytoplankton growth and microzooplankton grazing are two critical processes in marine food webs, but they remain understudied in the vast area of the subarctic western Pacific and the Bering Sea. In this study, we measured phytoplankton growth and microzooplankton grazing rates in these less-explor...
Published in: | Limnology and Oceanography |
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2023
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Online Access: | https://strathprints.strath.ac.uk/83741/ https://strathprints.strath.ac.uk/83741/1/Liu_etal_LO_2023_Role_of_nutrients_and_temperature_in_shaping_distinct_summer.pdf https://doi.org/10.1002/lno.12300 |
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ftustrathclyde:oai:strathprints.strath.ac.uk:83741 2024-05-19T07:28:23+00:00 Role of nutrients and temperature in shaping distinct summer phytoplankton and microzooplankton population dynamics in the western North Pacific and Bering Sea Liu, Kailin Nishioka, Jun Chen, Bingzhang Suzuki, Koji Cheung, Shunyan Lu, Yanhong Wu, Huijun Liu, Hongbin 2023-03-01 text https://strathprints.strath.ac.uk/83741/ https://strathprints.strath.ac.uk/83741/1/Liu_etal_LO_2023_Role_of_nutrients_and_temperature_in_shaping_distinct_summer.pdf https://doi.org/10.1002/lno.12300 en eng https://strathprints.strath.ac.uk/83741/1/Liu_etal_LO_2023_Role_of_nutrients_and_temperature_in_shaping_distinct_summer.pdf Liu, Kailin <https://strathprints.strath.ac.uk/view/author/1380513.html> and Nishioka, Jun and Chen, Bingzhang <https://strathprints.strath.ac.uk/view/author/1197924.html> and Suzuki, Koji and Cheung, Shunyan and Lu, Yanhong and Wu, Huijun and Liu, Hongbin (2023 <https://strathprints.strath.ac.uk/view/year/2023.html>) Role of nutrients and temperature in shaping distinct summer phytoplankton and microzooplankton population dynamics in the western North Pacific and Bering Sea. Limnology and Oceanography <https://strathprints.strath.ac.uk/view/publications/Limnology_and_Oceanography.html>, 68 (3). pp. 649-665. ISSN 0024-3590 strath_1 Oceanography Article PeerReviewed 2023 ftustrathclyde https://doi.org/10.1002/lno.12300 2024-05-01T00:22:06Z Phytoplankton growth and microzooplankton grazing are two critical processes in marine food webs, but they remain understudied in the vast area of the subarctic western Pacific and the Bering Sea. In this study, we measured phytoplankton growth and microzooplankton grazing rates in these less-explored regions to demonstrate their spatial patterns and investigate underlying mechanisms driving the planktonic food web dynamics. Our results showed that the phytoplankton growth in these regions was determined by nutrient availability and temperature. In the high-nutrient, low-chlorophyll regions (HNLC), iron availability was the primary factor limiting phytoplankton growth. In contrast, phytoplankton growth in the Gulf of Anadyr and Kamchatka Strait was mainly limited by inorganic nitrogen exhausted by the summer blooms. We found that microzooplankton grazing rate was affected by temperature and prey availability, highlighting the positive effect of temperature. Strong top-down control on phytoplankton by microzooplankton in the Gulf of Anadyr and Kamchatka Strait indicated an active microbial food web with high turnover rates. In contrast, the decoupling of phytoplankton growth and microzooplankton grazing in the HNLC regions illustrates a weak role of microzooplankton in the marine food web. These results indicated different food web structures in the areas with and without riverine iron input. By revealing the roles of temperature and nutrient or prey availability in regulating the spatial variability of plankton rates, we expect that the plankton will respond differently to ocean warming between the HNLC and coastal regions of the subarctic Pacific due to different nutrient conditions. Our study helps understand how marine plankton will respond to environmental changes at high latitudes. Article in Journal/Newspaper Anadyr Anadyr' Bering Sea Kamchatka Subarctic University of Strathclyde Glasgow: Strathprints Limnology and Oceanography 68 3 649 665 |
institution |
Open Polar |
collection |
University of Strathclyde Glasgow: Strathprints |
op_collection_id |
ftustrathclyde |
language |
English |
topic |
Oceanography |
spellingShingle |
Oceanography Liu, Kailin Nishioka, Jun Chen, Bingzhang Suzuki, Koji Cheung, Shunyan Lu, Yanhong Wu, Huijun Liu, Hongbin Role of nutrients and temperature in shaping distinct summer phytoplankton and microzooplankton population dynamics in the western North Pacific and Bering Sea |
topic_facet |
Oceanography |
description |
Phytoplankton growth and microzooplankton grazing are two critical processes in marine food webs, but they remain understudied in the vast area of the subarctic western Pacific and the Bering Sea. In this study, we measured phytoplankton growth and microzooplankton grazing rates in these less-explored regions to demonstrate their spatial patterns and investigate underlying mechanisms driving the planktonic food web dynamics. Our results showed that the phytoplankton growth in these regions was determined by nutrient availability and temperature. In the high-nutrient, low-chlorophyll regions (HNLC), iron availability was the primary factor limiting phytoplankton growth. In contrast, phytoplankton growth in the Gulf of Anadyr and Kamchatka Strait was mainly limited by inorganic nitrogen exhausted by the summer blooms. We found that microzooplankton grazing rate was affected by temperature and prey availability, highlighting the positive effect of temperature. Strong top-down control on phytoplankton by microzooplankton in the Gulf of Anadyr and Kamchatka Strait indicated an active microbial food web with high turnover rates. In contrast, the decoupling of phytoplankton growth and microzooplankton grazing in the HNLC regions illustrates a weak role of microzooplankton in the marine food web. These results indicated different food web structures in the areas with and without riverine iron input. By revealing the roles of temperature and nutrient or prey availability in regulating the spatial variability of plankton rates, we expect that the plankton will respond differently to ocean warming between the HNLC and coastal regions of the subarctic Pacific due to different nutrient conditions. Our study helps understand how marine plankton will respond to environmental changes at high latitudes. |
format |
Article in Journal/Newspaper |
author |
Liu, Kailin Nishioka, Jun Chen, Bingzhang Suzuki, Koji Cheung, Shunyan Lu, Yanhong Wu, Huijun Liu, Hongbin |
author_facet |
Liu, Kailin Nishioka, Jun Chen, Bingzhang Suzuki, Koji Cheung, Shunyan Lu, Yanhong Wu, Huijun Liu, Hongbin |
author_sort |
Liu, Kailin |
title |
Role of nutrients and temperature in shaping distinct summer phytoplankton and microzooplankton population dynamics in the western North Pacific and Bering Sea |
title_short |
Role of nutrients and temperature in shaping distinct summer phytoplankton and microzooplankton population dynamics in the western North Pacific and Bering Sea |
title_full |
Role of nutrients and temperature in shaping distinct summer phytoplankton and microzooplankton population dynamics in the western North Pacific and Bering Sea |
title_fullStr |
Role of nutrients and temperature in shaping distinct summer phytoplankton and microzooplankton population dynamics in the western North Pacific and Bering Sea |
title_full_unstemmed |
Role of nutrients and temperature in shaping distinct summer phytoplankton and microzooplankton population dynamics in the western North Pacific and Bering Sea |
title_sort |
role of nutrients and temperature in shaping distinct summer phytoplankton and microzooplankton population dynamics in the western north pacific and bering sea |
publishDate |
2023 |
url |
https://strathprints.strath.ac.uk/83741/ https://strathprints.strath.ac.uk/83741/1/Liu_etal_LO_2023_Role_of_nutrients_and_temperature_in_shaping_distinct_summer.pdf https://doi.org/10.1002/lno.12300 |
genre |
Anadyr Anadyr' Bering Sea Kamchatka Subarctic |
genre_facet |
Anadyr Anadyr' Bering Sea Kamchatka Subarctic |
op_relation |
https://strathprints.strath.ac.uk/83741/1/Liu_etal_LO_2023_Role_of_nutrients_and_temperature_in_shaping_distinct_summer.pdf Liu, Kailin <https://strathprints.strath.ac.uk/view/author/1380513.html> and Nishioka, Jun and Chen, Bingzhang <https://strathprints.strath.ac.uk/view/author/1197924.html> and Suzuki, Koji and Cheung, Shunyan and Lu, Yanhong and Wu, Huijun and Liu, Hongbin (2023 <https://strathprints.strath.ac.uk/view/year/2023.html>) Role of nutrients and temperature in shaping distinct summer phytoplankton and microzooplankton population dynamics in the western North Pacific and Bering Sea. Limnology and Oceanography <https://strathprints.strath.ac.uk/view/publications/Limnology_and_Oceanography.html>, 68 (3). pp. 649-665. ISSN 0024-3590 |
op_rights |
strath_1 |
op_doi |
https://doi.org/10.1002/lno.12300 |
container_title |
Limnology and Oceanography |
container_volume |
68 |
container_issue |
3 |
container_start_page |
649 |
op_container_end_page |
665 |
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1799472635819589632 |