Metabarcoding analysis of trophic sources and linkages in the plankton community of the Kuroshio and neighboring waters

Abstract Trophic sources and pathways supporting early life stages are crucial for survival of forage fishes recruiting around the oligotrophic and unproductive Kuroshio. However, information is limited for the Kuroshio planktonic food web and its trophodynamics because of its high biodiversity. Her...

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Autores principales:	Toru Kobari, Yusuke Tokumo, Ibuki Sato, Gen Kume, Junya Hirai
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/2fc8f9db3a964d6d85e2c931d3bb129e
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spelling	oai:doaj.org-article:2fc8f9db3a964d6d85e2c931d3bb129e2021-12-05T12:14:37ZMetabarcoding analysis of trophic sources and linkages in the plankton community of the Kuroshio and neighboring waters10.1038/s41598-021-02083-82045-2322https://doaj.org/article/2fc8f9db3a964d6d85e2c931d3bb129e2021-12-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-02083-8https://doaj.org/toc/2045-2322Abstract Trophic sources and pathways supporting early life stages are crucial for survival of forage fishes recruiting around the oligotrophic and unproductive Kuroshio. However, information is limited for the Kuroshio planktonic food web and its trophodynamics because of its high biodiversity. Here, we explore trophic sources and linkages in the Kuroshio plankton community using metabarcoding analysis of gut-content DNA for 22 mesozooplankton groups. The major prey was dinoflagellates and calanoids for omnivorous groups, and calanoids and gelatinous organisms for carnivorous groups. Larvaceans and hydrozoans were the most frequently appeared prey for both omnivores and carnivores, whereas they were minor constituents of the available prey in water samples. Although calanoids overlapped as major prey items for both omnivores and carnivores because they were the most available, contributions from phytoplankton and gelatinous prey differed among taxonomic groups. Further analysis of the metabarcoding data showed that in addition to omnivorous copepods like calanoids, gelatinous groups like larvaceans and hydrozoans were important hubs in the planktonic food web with their multiple trophic linkages to many components. These findings suggest that gelatinous organisms are important as supplementary prey and provide evidence of niche segregation on trophic sources among mesozooplankton groups in the Kuroshio.Toru KobariYusuke TokumoIbuki SatoGen KumeJunya HiraiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Toru Kobari Yusuke Tokumo Ibuki Sato Gen Kume Junya Hirai Metabarcoding analysis of trophic sources and linkages in the plankton community of the Kuroshio and neighboring waters
description	Abstract Trophic sources and pathways supporting early life stages are crucial for survival of forage fishes recruiting around the oligotrophic and unproductive Kuroshio. However, information is limited for the Kuroshio planktonic food web and its trophodynamics because of its high biodiversity. Here, we explore trophic sources and linkages in the Kuroshio plankton community using metabarcoding analysis of gut-content DNA for 22 mesozooplankton groups. The major prey was dinoflagellates and calanoids for omnivorous groups, and calanoids and gelatinous organisms for carnivorous groups. Larvaceans and hydrozoans were the most frequently appeared prey for both omnivores and carnivores, whereas they were minor constituents of the available prey in water samples. Although calanoids overlapped as major prey items for both omnivores and carnivores because they were the most available, contributions from phytoplankton and gelatinous prey differed among taxonomic groups. Further analysis of the metabarcoding data showed that in addition to omnivorous copepods like calanoids, gelatinous groups like larvaceans and hydrozoans were important hubs in the planktonic food web with their multiple trophic linkages to many components. These findings suggest that gelatinous organisms are important as supplementary prey and provide evidence of niche segregation on trophic sources among mesozooplankton groups in the Kuroshio.
format	article
author	Toru Kobari Yusuke Tokumo Ibuki Sato Gen Kume Junya Hirai
author_facet	Toru Kobari Yusuke Tokumo Ibuki Sato Gen Kume Junya Hirai
author_sort	Toru Kobari
title	Metabarcoding analysis of trophic sources and linkages in the plankton community of the Kuroshio and neighboring waters
title_short	Metabarcoding analysis of trophic sources and linkages in the plankton community of the Kuroshio and neighboring waters
title_full	Metabarcoding analysis of trophic sources and linkages in the plankton community of the Kuroshio and neighboring waters
title_fullStr	Metabarcoding analysis of trophic sources and linkages in the plankton community of the Kuroshio and neighboring waters
title_full_unstemmed	Metabarcoding analysis of trophic sources and linkages in the plankton community of the Kuroshio and neighboring waters
title_sort	metabarcoding analysis of trophic sources and linkages in the plankton community of the kuroshio and neighboring waters
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/2fc8f9db3a964d6d85e2c931d3bb129e
work_keys_str_mv	AT torukobari metabarcodinganalysisoftrophicsourcesandlinkagesintheplanktoncommunityofthekuroshioandneighboringwaters AT yusuketokumo metabarcodinganalysisoftrophicsourcesandlinkagesintheplanktoncommunityofthekuroshioandneighboringwaters AT ibukisato metabarcodinganalysisoftrophicsourcesandlinkagesintheplanktoncommunityofthekuroshioandneighboringwaters AT genkume metabarcodinganalysisoftrophicsourcesandlinkagesintheplanktoncommunityofthekuroshioandneighboringwaters AT junyahirai metabarcodinganalysisoftrophicsourcesandlinkagesintheplanktoncommunityofthekuroshioandneighboringwaters
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Metabarcoding analysis of trophic sources and linkages in the plankton community of the Kuroshio and neighboring waters

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