Role of nutrients and temperature in shaping distinct summer phytoplankton and microzooplankton population dynamics in the western North Pacific and Bering Sea
Abstract 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 le...
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crwiley:10.1002/lno.12300 2024-10-13T14:01:20+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 http://dx.doi.org/10.1002/lno.12300 https://onlinelibrary.wiley.com/doi/pdf/10.1002/lno.12300 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/lno.12300 https://aslopubs.onlinelibrary.wiley.com/doi/pdf/10.1002/lno.12300 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Limnology and Oceanography volume 68, issue 3, page 649-665 ISSN 0024-3590 1939-5590 journal-article 2023 crwiley https://doi.org/10.1002/lno.12300 2024-09-17T04:44:55Z Abstract 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 Wiley Online Library Bering Sea Pacific Anadyr ENVELOPE(177.510,177.510,64.734,64.734) Anadyr’ ENVELOPE(176.233,176.233,64.882,64.882) Limnology and Oceanography 68 3 649 665 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Abstract 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 |
spellingShingle |
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 |
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 |
publisher |
Wiley |
publishDate |
2023 |
url |
http://dx.doi.org/10.1002/lno.12300 https://onlinelibrary.wiley.com/doi/pdf/10.1002/lno.12300 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/lno.12300 https://aslopubs.onlinelibrary.wiley.com/doi/pdf/10.1002/lno.12300 |
long_lat |
ENVELOPE(177.510,177.510,64.734,64.734) ENVELOPE(176.233,176.233,64.882,64.882) |
geographic |
Bering Sea Pacific Anadyr Anadyr’ |
geographic_facet |
Bering Sea Pacific Anadyr Anadyr’ |
genre |
Anadyr Anadyr' Bering Sea Kamchatka Subarctic |
genre_facet |
Anadyr Anadyr' Bering Sea Kamchatka Subarctic |
op_source |
Limnology and Oceanography volume 68, issue 3, page 649-665 ISSN 0024-3590 1939-5590 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
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 |
_version_ |
1812809652887355392 |