Exogenous nutrient inputs restructure phytoplankton community and ecological stoichiometry of Eastern Indian Ocean

Exogenous nutrient inputs increasingly impact the structure and function of marine food weds through abiotic and biotic ways. The influence of nutrient inputs from atmospheric depositions and intermediate seawater supply on the phytoplankton growth and stoichiometry was studied in the Eastern Indian...

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Autores principales: Yuping Zhou, Xue Yang, Ying Wang, Fangfang Li, Jiangtao Wang, Liju Tan
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Lenguaje:EN
Publicado: Elsevier 2021
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Acceso en línea:https://doaj.org/article/bdfbb3e0602441aa91df74fa9e9063f1
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spelling oai:doaj.org-article:bdfbb3e0602441aa91df74fa9e9063f12021-12-01T04:53:47ZExogenous nutrient inputs restructure phytoplankton community and ecological stoichiometry of Eastern Indian Ocean1470-160X10.1016/j.ecolind.2021.107801https://doaj.org/article/bdfbb3e0602441aa91df74fa9e9063f12021-08-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1470160X21004660https://doaj.org/toc/1470-160XExogenous nutrient inputs increasingly impact the structure and function of marine food weds through abiotic and biotic ways. The influence of nutrient inputs from atmospheric depositions and intermediate seawater supply on the phytoplankton growth and stoichiometry was studied in the Eastern Indian Ocean through multifactorial mesocosm experiments. Our results indicate that nitrogen inputs from atmospheric deposition and hydrodynamic processes did not only promote chlorophyll a biomass (5.3–58.52 μg·L-1) to increase the photosynthetically fixed carbon content but also generate a regime shift from picophytoplankton cyanobacteria to microphytoplankton diatom indicated by high relative abundance of microphytoplankton (>50%). These alternations of nutrient status and phytoplankton community structure reduced biodiversity of marine ecosystems (N-cultures, 0.18 to 0.56; control, 0.63) and generated the attendant C/N ratio of 5.6 ± 0.2 in cultures with nitrogen addition that was significantly lower than cultures with only phosphorus or iron addition. These results provide a thorough insight about the influence of nutrient inputs on marine biogeochemical cycle. Considering the universality of phytoplankton community alteration induced by exogenous nutrient inputs, integrating community compositions with phytoplankton stoichiometry may be helpful for clarify mechanisms of environment events impacting marine food weds.Yuping ZhouXue YangYing WangFangfang LiJiangtao WangLiju TanElsevierarticlePhytoplankton communityStoichiometryNitrogen inputBiodiversityC/N ratioEastern Indian OceanEcologyQH540-549.5ENEcological Indicators, Vol 127, Iss , Pp 107801- (2021)
institution DOAJ
collection DOAJ
language EN
topic Phytoplankton community
Stoichiometry
Nitrogen input
Biodiversity
C/N ratio
Eastern Indian Ocean
Ecology
QH540-549.5
spellingShingle Phytoplankton community
Stoichiometry
Nitrogen input
Biodiversity
C/N ratio
Eastern Indian Ocean
Ecology
QH540-549.5
Yuping Zhou
Xue Yang
Ying Wang
Fangfang Li
Jiangtao Wang
Liju Tan
Exogenous nutrient inputs restructure phytoplankton community and ecological stoichiometry of Eastern Indian Ocean
description Exogenous nutrient inputs increasingly impact the structure and function of marine food weds through abiotic and biotic ways. The influence of nutrient inputs from atmospheric depositions and intermediate seawater supply on the phytoplankton growth and stoichiometry was studied in the Eastern Indian Ocean through multifactorial mesocosm experiments. Our results indicate that nitrogen inputs from atmospheric deposition and hydrodynamic processes did not only promote chlorophyll a biomass (5.3–58.52 μg·L-1) to increase the photosynthetically fixed carbon content but also generate a regime shift from picophytoplankton cyanobacteria to microphytoplankton diatom indicated by high relative abundance of microphytoplankton (>50%). These alternations of nutrient status and phytoplankton community structure reduced biodiversity of marine ecosystems (N-cultures, 0.18 to 0.56; control, 0.63) and generated the attendant C/N ratio of 5.6 ± 0.2 in cultures with nitrogen addition that was significantly lower than cultures with only phosphorus or iron addition. These results provide a thorough insight about the influence of nutrient inputs on marine biogeochemical cycle. Considering the universality of phytoplankton community alteration induced by exogenous nutrient inputs, integrating community compositions with phytoplankton stoichiometry may be helpful for clarify mechanisms of environment events impacting marine food weds.
format article
author Yuping Zhou
Xue Yang
Ying Wang
Fangfang Li
Jiangtao Wang
Liju Tan
author_facet Yuping Zhou
Xue Yang
Ying Wang
Fangfang Li
Jiangtao Wang
Liju Tan
author_sort Yuping Zhou
title Exogenous nutrient inputs restructure phytoplankton community and ecological stoichiometry of Eastern Indian Ocean
title_short Exogenous nutrient inputs restructure phytoplankton community and ecological stoichiometry of Eastern Indian Ocean
title_full Exogenous nutrient inputs restructure phytoplankton community and ecological stoichiometry of Eastern Indian Ocean
title_fullStr Exogenous nutrient inputs restructure phytoplankton community and ecological stoichiometry of Eastern Indian Ocean
title_full_unstemmed Exogenous nutrient inputs restructure phytoplankton community and ecological stoichiometry of Eastern Indian Ocean
title_sort exogenous nutrient inputs restructure phytoplankton community and ecological stoichiometry of eastern indian ocean
publisher Elsevier
publishDate 2021
url https://doaj.org/article/bdfbb3e0602441aa91df74fa9e9063f1
work_keys_str_mv AT yupingzhou exogenousnutrientinputsrestructurephytoplanktoncommunityandecologicalstoichiometryofeasternindianocean
AT xueyang exogenousnutrientinputsrestructurephytoplanktoncommunityandecologicalstoichiometryofeasternindianocean
AT yingwang exogenousnutrientinputsrestructurephytoplanktoncommunityandecologicalstoichiometryofeasternindianocean
AT fangfangli exogenousnutrientinputsrestructurephytoplanktoncommunityandecologicalstoichiometryofeasternindianocean
AT jiangtaowang exogenousnutrientinputsrestructurephytoplanktoncommunityandecologicalstoichiometryofeasternindianocean
AT lijutan exogenousnutrientinputsrestructurephytoplanktoncommunityandecologicalstoichiometryofeasternindianocean
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