From Bacteria to Zooplankton: An Integrative Approach Revealing Regional Spatial Patterns During the Spring Phytoplankton Bloom in the Southern Bight of the North Sea

Plankton comprises a large diversity of organisms, from pico- to macro-sized classes, and spans several trophic levels, whose population dynamics are characterized by a high spatio-temporal variability. Studies integrating multiple plankton groups, in respect to size classes and trophic levels, are...

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Main Authors: Anaïs Aubert, Olivier Beauchard, Reinhoud de Blok, Luis Felipe Artigas, Koen Sabbe, Wim Vyverman, Luz Amadei Martínez, Klaas Deneudt, Arnaud Louchart, Jonas Mortelmans, Machteld Rijkeboer, Elisabeth Debusschere
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-07-01
Series:Frontiers in Marine Science
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fmars.2022.863996/full
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author Anaïs Aubert
Olivier Beauchard
Olivier Beauchard
Reinhoud de Blok
Reinhoud de Blok
Luis Felipe Artigas
Koen Sabbe
Wim Vyverman
Luz Amadei Martínez
Luz Amadei Martínez
Klaas Deneudt
Arnaud Louchart
Jonas Mortelmans
Machteld Rijkeboer
Elisabeth Debusschere
author_facet Anaïs Aubert
Olivier Beauchard
Olivier Beauchard
Reinhoud de Blok
Reinhoud de Blok
Luis Felipe Artigas
Koen Sabbe
Wim Vyverman
Luz Amadei Martínez
Luz Amadei Martínez
Klaas Deneudt
Arnaud Louchart
Jonas Mortelmans
Machteld Rijkeboer
Elisabeth Debusschere
author_sort Anaïs Aubert
collection DOAJ
description Plankton comprises a large diversity of organisms, from pico- to macro-sized classes, and spans several trophic levels, whose population dynamics are characterized by a high spatio-temporal variability. Studies integrating multiple plankton groups, in respect to size classes and trophic levels, are still rare, which hampers a more thorough description and elucidation of the full complexity of plankton dynamics. Here, we present a study on the spatial variability of five in-situ monitored plankton components, ranging from bacteria to meso-zooplankton, and using a complementary set of molecular, chemical and imaging tools, with samples obtained during the phytoplankton spring bloom in the hydrodynamically complex Southern Bight of the North Sea. We hypothesized that while generally recognized spatial gradients in e.g. salinity, turbidity and nutrients will have a strong impact on plankton spatial distribution patterns, interactions within the plankton compartment but also lag effects related to preceding bloom-related events will further modulate spatial structuring of the plankton. Our study indeed revealed an overriding imprint of regional factors on plankton distribution patterns. The dominant spatial pattern mainly reflected regional differences in dissolved inorganic nutrients and particulate matter concentrations related to differences in phytoplankton bloom timing between the two main regions of freshwater influence, the Thames and the Scheldt-Rhine-Meuse. A second major pattern corresponded to the expected nearshore-offshore gradient, with increasing influence of low turbidity and low nutrient Atlantic waters in the offshore stations. Environmental forcing on specific plankton groups and inter-plankton relationships also appeared to drive plankton distribution. Although the marine plankton comprises heterogeneous functional groups, this study shows that multiple planktonic ecosystem components can be parts of common spatial gradients and that often neglected small planktonic organisms can be key drivers of such gradients. These analytical outcomes open questions on regional and seasonal reproducibility of the highlighted gradients.
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spelling doaj.art-0939bb8bc4b24a3aa14d6ea2e85d15b72022-12-22T01:18:48ZengFrontiers Media S.A.Frontiers in Marine Science2296-77452022-07-01910.3389/fmars.2022.863996863996From Bacteria to Zooplankton: An Integrative Approach Revealing Regional Spatial Patterns During the Spring Phytoplankton Bloom in the Southern Bight of the North SeaAnaïs Aubert0Olivier Beauchard1Olivier Beauchard2Reinhoud de Blok3Reinhoud de Blok4Luis Felipe Artigas5Koen Sabbe6Wim Vyverman7Luz Amadei Martínez8Luz Amadei Martínez9Klaas Deneudt10Arnaud Louchart11Jonas Mortelmans12Machteld Rijkeboer13Elisabeth Debusschere14Marine Observation Center, Flanders Marine Institute (VLIZ), Oostende, BelgiumMarine Observation Center, Flanders Marine Institute (VLIZ), Oostende, BelgiumDepartment of Estuarine and Delta Systems, Netherlands Institute for Sea Research and Utrecht University, Yerseke, NetherlandsMarine Observation Center, Flanders Marine Institute (VLIZ), Oostende, BelgiumLaboratory of Protistology and Aquatic Ecology, Department of Biology, Ghent University, Ghent, BelgiumUniversité du Littoral Côte d’Opale, Univ. Lille, CNRS, UMR 8187, LOG, Laboratoire d’Océanologie et de Géosciences, Wimereux, FranceLaboratory of Protistology and Aquatic Ecology, Department of Biology, Ghent University, Ghent, BelgiumLaboratory of Protistology and Aquatic Ecology, Department of Biology, Ghent University, Ghent, BelgiumMarine Observation Center, Flanders Marine Institute (VLIZ), Oostende, BelgiumLaboratory of Protistology and Aquatic Ecology, Department of Biology, Ghent University, Ghent, BelgiumMarine Observation Center, Flanders Marine Institute (VLIZ), Oostende, BelgiumUniversité du Littoral Côte d’Opale, Univ. Lille, CNRS, UMR 8187, LOG, Laboratoire d’Océanologie et de Géosciences, Wimereux, FranceMarine Observation Center, Flanders Marine Institute (VLIZ), Oostende, BelgiumLaboratory for Hydrobiological Analysis, Rijkswaterstaat (RWS), Lelystad, NetherlandsMarine Observation Center, Flanders Marine Institute (VLIZ), Oostende, BelgiumPlankton comprises a large diversity of organisms, from pico- to macro-sized classes, and spans several trophic levels, whose population dynamics are characterized by a high spatio-temporal variability. Studies integrating multiple plankton groups, in respect to size classes and trophic levels, are still rare, which hampers a more thorough description and elucidation of the full complexity of plankton dynamics. Here, we present a study on the spatial variability of five in-situ monitored plankton components, ranging from bacteria to meso-zooplankton, and using a complementary set of molecular, chemical and imaging tools, with samples obtained during the phytoplankton spring bloom in the hydrodynamically complex Southern Bight of the North Sea. We hypothesized that while generally recognized spatial gradients in e.g. salinity, turbidity and nutrients will have a strong impact on plankton spatial distribution patterns, interactions within the plankton compartment but also lag effects related to preceding bloom-related events will further modulate spatial structuring of the plankton. Our study indeed revealed an overriding imprint of regional factors on plankton distribution patterns. The dominant spatial pattern mainly reflected regional differences in dissolved inorganic nutrients and particulate matter concentrations related to differences in phytoplankton bloom timing between the two main regions of freshwater influence, the Thames and the Scheldt-Rhine-Meuse. A second major pattern corresponded to the expected nearshore-offshore gradient, with increasing influence of low turbidity and low nutrient Atlantic waters in the offshore stations. Environmental forcing on specific plankton groups and inter-plankton relationships also appeared to drive plankton distribution. Although the marine plankton comprises heterogeneous functional groups, this study shows that multiple planktonic ecosystem components can be parts of common spatial gradients and that often neglected small planktonic organisms can be key drivers of such gradients. These analytical outcomes open questions on regional and seasonal reproducibility of the highlighted gradients.https://www.frontiersin.org/articles/10.3389/fmars.2022.863996/fullmarine planktonspatial distributionspring bloomplankton dynamicsabiotic factorsimaging-technique
spellingShingle Anaïs Aubert
Olivier Beauchard
Olivier Beauchard
Reinhoud de Blok
Reinhoud de Blok
Luis Felipe Artigas
Koen Sabbe
Wim Vyverman
Luz Amadei Martínez
Luz Amadei Martínez
Klaas Deneudt
Arnaud Louchart
Jonas Mortelmans
Machteld Rijkeboer
Elisabeth Debusschere
From Bacteria to Zooplankton: An Integrative Approach Revealing Regional Spatial Patterns During the Spring Phytoplankton Bloom in the Southern Bight of the North Sea
Frontiers in Marine Science
marine plankton
spatial distribution
spring bloom
plankton dynamics
abiotic factors
imaging-technique
title From Bacteria to Zooplankton: An Integrative Approach Revealing Regional Spatial Patterns During the Spring Phytoplankton Bloom in the Southern Bight of the North Sea
title_full From Bacteria to Zooplankton: An Integrative Approach Revealing Regional Spatial Patterns During the Spring Phytoplankton Bloom in the Southern Bight of the North Sea
title_fullStr From Bacteria to Zooplankton: An Integrative Approach Revealing Regional Spatial Patterns During the Spring Phytoplankton Bloom in the Southern Bight of the North Sea
title_full_unstemmed From Bacteria to Zooplankton: An Integrative Approach Revealing Regional Spatial Patterns During the Spring Phytoplankton Bloom in the Southern Bight of the North Sea
title_short From Bacteria to Zooplankton: An Integrative Approach Revealing Regional Spatial Patterns During the Spring Phytoplankton Bloom in the Southern Bight of the North Sea
title_sort from bacteria to zooplankton an integrative approach revealing regional spatial patterns during the spring phytoplankton bloom in the southern bight of the north sea
topic marine plankton
spatial distribution
spring bloom
plankton dynamics
abiotic factors
imaging-technique
url https://www.frontiersin.org/articles/10.3389/fmars.2022.863996/full
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