Physical and Biogeochemical Factors Driving Spatially Heterogeneous Phytoplankton Blooms in Nearshore Waters of Santa Monica Bay, USA

Stauffer, Beth; Sukhatme, Gaurav S.; Caron, David A.

doi:10.1007/s12237-020-00704-5

Cited by 9 publications

(5 citation statements)

References 97 publications

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“…4.2) would act in addition to other physical factors that regulate plankton biomass accumulation and succession in the surface waters following upwelling (e.g. seed community abundance present in subsurface waters (Seegers et al 2015) that could not be included in this experimental set-up, such as dilution and mixing of water masses via regular tidal transport of water masses onshore (Stauffer et al, 2020).…”

Section: Consequences For Phytoplankton Succession and Productivity A...mentioning

confidence: 99%

Upwelled plankton community modulates surface bloom succession and nutrient availability in a natural plankton assemblage

Paul

Bach

Arı́stegui

et al. 2022

Preprint

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Abstract. Upwelling of nutrient rich waters into the sunlit surface layer of the ocean supports high primary productivity in Eastern Boundary Upwelling Systems (EBUS). However, subsurface waters not only contain macronutrients (N, P, Si) but also micronutrients, organic matter, and seed microbial communities that may modify the response to macronutrient inputs via upwelling. These additional factors are often neglected when investigating upwelling impacts on surface ocean productivity. Here, we investigated how different components of upwelled water (macronutrients, organic nutrients, seed communities) drive the response of surface plankton communities to upwelling in the Peruvian coastal zone. Results from our short term (10 days) study show that the most influential drivers in upwelled deep water are 1) the ratio of inorganic nutrients (NOx : PO43-) and 2) the microbial community present that can seed heterogeneity in phytoplankton succession and modify stoichiometry of residual inorganic nutrients after phytoplankton blooms. Hence, this study suggests that phytoplankton succession after upwelling is modified by factors other than the physical supply of inorganic nutrients. This would likely affect trophic transfer and overall productivity in these highly fertile marine ecosystems.

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Section: Consequences For Phytoplankton Succession and Productivity A...mentioning

confidence: 99%

Upwelled plankton community modulates surface bloom succession and nutrient availability in a natural plankton assemblage

Paul

Bach

Arı́stegui

et al. 2022

Preprint

View full text Add to dashboard Cite

show abstract

“…seed community abundance present in subsurface waters; Seegers et al, 2015). Such physical factors, such as dilution, mixing and horizontal transport of water masses via regular tidal transport onshore (Stauffer et al, 2020), could not be included in this experimental set-up.…”

Section: Consequences For Phytoplankton Succession and Productivity A...mentioning

confidence: 99%

Upwelled plankton community modulates surface bloom succession and nutrient availability in a natural plankton assemblage

et al. 2022

View full text Add to dashboard Cite

Abstract. Upwelling of nutrient-rich waters into the sunlit surface layer of the ocean supports high primary productivity in eastern boundary upwelling systems (EBUSs). However, subsurface waters contain not only macronutrients (N, P, Si) but also micronutrients, organic matter and seed microbial communities that may modify the response to macronutrient inputs via upwelling. These additional factors are often neglected when investigating upwelling impacts on surface ocean productivity. Here, we investigated how different components of upwelled water (macronutrients, organic nutrients and seed communities) drive the response of surface plankton communities to upwelling in the Peruvian coastal zone. Results from our short-term (10 d) study show that the most influential drivers in upwelled deep water are (1) the ratio of inorganic nutrients (NOx : PO43-) and (2) the microbial community present that can seed heterogeneity in phytoplankton succession and modify the stoichiometry of residual inorganic nutrients after phytoplankton blooms. Hence, this study suggests that phytoplankton succession after upwelling is modified by factors other than the physical supply of inorganic nutrients. This would likely affect trophic transfer and overall productivity in these highly fertile marine ecosystems.

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“…However, due to the increasingly and intensively anthropogenic activities around the bay ecosystems, currently, many coastal bay ecosystems are facing heterogeneous environmental issues (Lefcheck et al 2018;He and Silliman 2019). Existing studies indicate that eutrophication, environmental pollution, and harmful algal bloom have occurred frequently in many coastal bay ecosystems and caused a decrease in biodiversity, a collapse of living organisms, and an ecological imbalance (McLusky and Elliott 2004;Cloern and Jassby 2010;Stauffer et al 2020). The influence of heterogeneous environmental issues on marine planktonic community has been a hot issue in the field of bay environmental protection (Matear et al 2019).…”

Section: Introductionmentioning

confidence: 99%

Phosphate Enrichment Regulates the Interplay Between Deterministic and Stochastic Processes of Bacterioplankton Community Assembly in a Subtropical Bay Impacted by Thermal Discharge

Chen¹,

Wan²,

Ma³

et al. 2022

Preprint

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Increasing anthropogenic activities has caused intensive environmental issues and undesirable ecological impacts on coastal bay ecosystems. Bacterioplankton play critical roles in ecological functioning of the bay ecosystems, but much remains to be learned regarding the response of bacterioplankton community assembly to heterogeneous environmental issues in the bay ecosystems and its underlying mechanisms. In this study, we used the phylogenetic framework to analyze the bacterioplankton community assembly in the subtropical Daya Bay, where the habitats are connected by water flows and tides and their trophic status are subject to intensive environmental stress induced by human activities (e.g., thermal discharge and nutrient release from aquaculture). We found bacterioplankton community compositions (BCCs) among the sampling habitats in the Daya Bay showed obvious spatial heterogeneity. The spatial distributions of BCCs were significantly shaped by phosphate concentration among the examined environmental factors. We observed that between pairwise sampling habitats, the BCC dissimilarity significantly increased with the differences in seawater phosphate concentration. Compared with stochastic processes, phosphate enrichment imposed stronger effects of environmental filtering in determining bacterioplankton community assembly in the subtropical bay, and bacterioplankton communities tended to be higher phylogenetically clustered in more phosphate-enriched habitats. In summary, we propose that phosphate is a major environmental determinant in the subtropical Daya Bay impacted by thermal discharge and regulates the interplay between deterministic and stochastic processes underlying bacterioplankton community assembly.

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Physical and Biogeochemical Factors Driving Spatially Heterogeneous Phytoplankton Blooms in Nearshore Waters of Santa Monica Bay, USA

Cited by 9 publications

References 97 publications

Upwelled plankton community modulates surface bloom succession and nutrient availability in a natural plankton assemblage

Upwelled plankton community modulates surface bloom succession and nutrient availability in a natural plankton assemblage

Upwelled plankton community modulates surface bloom succession and nutrient availability in a natural plankton assemblage

Phosphate Enrichment Regulates the Interplay Between Deterministic and Stochastic Processes of Bacterioplankton Community Assembly in a Subtropical Bay Impacted by Thermal Discharge

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