Diversity and co-occurrence networks of picoeukaryotes as a tool for indicating underlying environmental heterogeneity in the Western Pacific Ocean

Liu, Qian; Zhao, Qiannan; Jiang, Yong; Li, Yan; Zhang, Chenru; Li, Xianrong; Yu, Xiaowen; Huang, Liyang; Yang, Gui‐Peng; Chen, Hongtao; Tian, Jiwei

doi:10.1016/j.marenvres.2021.105376

Cited by 17 publications

(4 citation statements)

References 58 publications

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“…Although Micromonas was not significantly associated with a specific season according to IndVal, it was typically more abundant during winter as was most of its positively associated taxa. This also agrees with the preference of this genus for nutrient rich waters (Liu et al, 2021 ), since during winter the seawater column mixes and nutrients are returned to the surface waters.…”

Section: Discussionsupporting

confidence: 90%

Shared and contrasting associations in the dynamic nano‐ and picoplankton communities of two close but contrasting sites from the Bay of Biscay

Garate

Alonso‐Sáez

Revilla

et al. 2022

Environmental Microbiology

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Pico-and nanoplankton are key players in the marine ecosystems due to their implication in the biogeochemical cycles, nutrient recycling and the pelagic food webs. However, the specific dynamics and niches of most bacterial, archaeal and eukaryotic plankton remain unknown, as well as the interactions between them. Better characterization of these is critical for understanding and predicting ecosystem functioning under anthropogenic pressures. We used environmental DNA metabarcoding across a 6-year time series to explore the structure and seasonality of pico-and nanoplankton communities in two sites of the Bay of Biscay, one coastal and one offshore, and construct association networks to reveal potential keystone and connector taxa. Temporal trends in alpha diversity were similar between the two sites, and concurrent communities more similar than within the same site at different times. However, we found differences between the network topologies of the two sites, with both shared and site-specific keystones and connectors. For example, Micromonas, with lower abundance in the offshore site is a keystone here, indicating a stronger effect of associations such as resource competition. This study provides an example of how time series and association network analysis can reveal how similar communities may function differently despite being geographically close.

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Section: Discussionsupporting

confidence: 90%

Shared and contrasting associations in the dynamic nano‐ and picoplankton communities of two close but contrasting sites from the Bay of Biscay

Garate

Alonso‐Sáez

Revilla

et al. 2022

Environmental Microbiology

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“…Interactions between organisms contribute to the structure and function of the community and ecosystem. Although previous studies reported that abiotic factors strongly influence the dynamics of the community (Liu et al, 2021;Yu et al, 2022), others indicate that biotic interactions also play an important role (Steele et al, 2011;Gilbert et al, 2012;Chow et al, 2013). The strong correlation between organisms and the low explanatory capacity of abiotic factors for community composition suggest an essential role of biotic interactions as community-structuring factors in shallow waters, as previously proposed for planktonic communities in surface waters of Rıá de Vigo (Hernańdez-Ruiz et al, 2018;Joglar et al, 2021).…”

Section: Discussionmentioning

confidence: 73%

Co-occurrence and diversity patterns of benthonic and planktonic communities in a shallow marine ecosystem

et al. 2022

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Marine microorganisms are involved in a variety of biogeochemical cycles and live in diverse ecological communities where they interact with each other and with other organisms to guarantee ecosystem functions. The present study focused on a shallow marine environment located in Ría de Vigo (NW, Spain), where sediment and size-fractionated plankton samples were collected from 2016 to 2018. DNA metabarcoding was used to describe the eukaryote and prokaryote composition and diversity in sediments and plankton and to depict possible associations among the most frequent and abundant organisms by co-occurrence network analysis. High eukaryote and prokaryote diversity indices were obtained in all compartments. Significant differences among eukaryote and prokaryote communities were found between sediment and plankton samples, with a high percentage of exclusive operational taxonomic units (OTUs) associated with each compartment, especially from sediment. Despite these differences, shared taxa between water and sediment were also obtained, suggesting a relatively meaningful exchange of organisms between both environmental compartments. Significant co-occurrences were mainly obtained between prokaryotes (41%), followed by eukaryotes–prokaryotes (32%) and between eukaryotes (27%). The abundant and strong positive correlations between organisms, including representatives from the sediment and the water column, suggested an essential role of biotic interactions as community-structuring factors in shallow waters where beneficial associations likely prevail. This study provides a novel approach for the detailed description of the eukaryote and prokaryote diversity and co-occurrence patterns in a shallow marine area, including both the sediment and different water-size fractions. The high diversity obtained and the detection of predominantly coexisting interactions among organisms from sediment and the overlying water column suggest a movement of species between both habitats and therefore confirm the importance of integratively studying shallow marine ecosystems.

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“…The sampling map, temperature, and salinity diagrams were generated using ODV software ( 64 ). The PRIMER (v.7.0) software and R software were used to conduct the multivariate analyses of spatial patterns in the microbial communities ( 57 ).…”

Section: Methodsmentioning

confidence: 99%

Assembly and Network Stability of Planktonic Microorganisms under the Influence of Salinity Gradient: an Arctic Case Study from the Lena River Estuary to the Laptev Sea

Liu

Wang

et al. 2023

Microbiol Spectr

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Diversity and co-occurrence networks of picoeukaryotes as a tool for indicating underlying environmental heterogeneity in the Western Pacific Ocean

Cited by 17 publications

References 58 publications

Shared and contrasting associations in the dynamic nano‐ and picoplankton communities of two close but contrasting sites from the Bay of Biscay

Shared and contrasting associations in the dynamic nano‐ and picoplankton communities of two close but contrasting sites from the Bay of Biscay

Co-occurrence and diversity patterns of benthonic and planktonic communities in a shallow marine ecosystem

Assembly and Network Stability of Planktonic Microorganisms under the Influence of Salinity Gradient: an Arctic Case Study from the Lena River Estuary to the Laptev Sea

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