You have already added 0 works in your ORCID record related to the merged Research product.
Impacts of reduced inorganic N:P ratio on three distinct plankton communities in the Humboldt upwelling system
The ratio of inorganic nitrogen to phosphorus (NP) is projected to decrease in the Eastern Boundary Upwelling Systems (EBUS) due to warming of the surface waters. In an enclosure experiment, we employed two levels of inorganic NP ratios (10 and 5) for three distinct plankton communities collected along the coast of central Chile (33°S). The primary effect of the NP treatment was related to different concentrations of NO3, which directly influenced the biomass of phytoplankton. In addition, low inorganic NP ratio reduced the seston NP and Chl a-C ratios, and there were some effects on the plankton community composition, e.g., benefitting Synechococcus spp. in some communities. One of the communities was clearly top-down controlled and trophic transfer to grazers was up to 5.8% during the 12 day experiment. Overall, the initial, natural plankton community composition was more important for seston stoichiometry and trophic transfer than the manipulation of the inorganic NP ratio, highlighting the importance of plankton community structure for marine ecosystem functioning. © 2019, The Author(s).
Financial support for this study came from the EU FP7 research infrastructure initiative ASSEMBLE (grant agreement no. 227799). Further support came from the Academy of Finland (decision no 259164) and the Walter and Andrée de Nottbeck foundation (KS and TC). The InFlux cytometer was purchased with financing by the FONDEQUIP program (grant EQM130267, CONICYT).
Peer reviewed
Microsoft Academic Graph classification: Trophic level Phytoplankton Ecology Plankton Seston Community structure Synechococcus biology.organism_classification biology Upwelling Biomass (ecology) Environmental science Ecosystem Environmental chemistry
Medical Subject Headings: fungi
Biomass, Chile, Upwelling, Engraulis ringens, Ecology, Aquatic Science, Ecology, Evolution, Behavior and Systematics, Biomass, Chile, Upwelling, Engraulis ringens, [SDV.EE.BIO]Life Sciences [q-bio]/Ecology, environment/Bioclimatology, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography, HYDROGRAPHIC CONDITIONS, INTERANNUAL VARIABILITY, NATURAL ASSEMBLAGES, NITROGEN-FIXATION, NUTRIENT, ORGANIC-MATTER, PHOSPHORUS, PHYTOPLANKTON, STOICHIOMETRY, TROPICAL PACIFIC, 1181 Ecology, evolutionary biology
Biomass, Chile, Upwelling, Engraulis ringens, Ecology, Aquatic Science, Ecology, Evolution, Behavior and Systematics, Biomass, Chile, Upwelling, Engraulis ringens, [SDV.EE.BIO]Life Sciences [q-bio]/Ecology, environment/Bioclimatology, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography, HYDROGRAPHIC CONDITIONS, INTERANNUAL VARIABILITY, NATURAL ASSEMBLAGES, NITROGEN-FIXATION, NUTRIENT, ORGANIC-MATTER, PHOSPHORUS, PHYTOPLANKTON, STOICHIOMETRY, TROPICAL PACIFIC, 1181 Ecology, evolutionary biology
Microsoft Academic Graph classification: Trophic level Phytoplankton Ecology Plankton Seston Community structure Synechococcus biology.organism_classification biology Upwelling Biomass (ecology) Environmental science Ecosystem Environmental chemistry
Medical Subject Headings: fungi
7017
Aldunate M, De la Iglesia R, Bertagnolli AD, Ulloa O (2018) Oxygen modulates bacterial community composition in the coastal upwelling waters of central Chile. Deep Sea Res Part II Top Stud Oceanogr. https://doi.org/10.1016/j.dsr2.2018.02.001
Alonso-Sáez L, Unanue M, Latatu A, Azua I, Ayo B, Artolozaga I, Iriberri J (2009) Changes in marine prokaryotic community induced by varying types of dissolved organic matter and subsequent grazing pressure. J Plankton Res 31:1373-1383
Anabalón V, Morales C, Escribano R, Varas MA (2007) The contribution of nano-and micro-planktonic assemblages in the surface layer (0-30 m) under diferent hydrographic conditions in the upwelling area of Concepción, central Chile. Prog Oceanogr 75:396-414
Anabalón V, Morales C, González H, Menschel E, Schneider W, Hormazabal S, Valencia L, Escribano R (2016) Micro-phytoplankton community structure in the coastal upwelling zone of concepción (central Chile): annual and inter-annual fluctuations in a highly dynamic environment. Prog Oceanogr 149:174-188
Anderson MJ (2001) A new method for non-parametric multivariate analysis of variance. Austral Ecol 26:32-46
Anderson MJ (2006) Distance-based tests for homogeneity of multivariate dispersions. Biometrics 62:245-253
Anderson MJ, Ellingsen KE, McArdle BH (2006) Multivariate dispersion as a measure of beta diversity. Ecol Lett 9:683-693
Anderson M, Gorley RN, Clarke RK (2008) Permanova + for primer: guide to software and statistical methods. PPRIMER-E, Plymouth
Atlas EL, Gordon L, Hager S, Park PK (1971) A practical manual for use of the Technicon Autoanalyzer in seawater nutrient analyses. Oregon State University, Department of Oceanography, Corvallis
Brochier T, Lett C, Fréon P (2011) Investigating the 'northern Humboldt paradox'from model comparisons of small pelagic fish reproductive strategies in eastern boundary upwelling ecosystems. Fish Fish 12:94-109 [OpenAIRE]
- Academy of Finland (AKA)
- 259164
- University of Chile Chile
- Marine Research Centre Maldives
- Finnish Environmental Institute Finland
- Departamento de Ecología
- Spanish National Research Council Spain
- Departamento de Zoologia
- Finnish Environment Institute Finland
- Université Paris Diderot France
- University of Helsinki Finland
- Pontificia Universidad Católica de Chile Chile
- Finnish Environment Institute
- Finnish Environmental Institute
- Departamento de Economia
The ratio of inorganic nitrogen to phosphorus (NP) is projected to decrease in the Eastern Boundary Upwelling Systems (EBUS) due to warming of the surface waters. In an enclosure experiment, we employed two levels of inorganic NP ratios (10 and 5) for three distinct plankton communities collected along the coast of central Chile (33°S). The primary effect of the NP treatment was related to different concentrations of NO3, which directly influenced the biomass of phytoplankton. In addition, low inorganic NP ratio reduced the seston NP and Chl a-C ratios, and there were some effects on the plankton community composition, e.g., benefitting Synechococcus spp. in some communities. One of the communities was clearly top-down controlled and trophic transfer to grazers was up to 5.8% during the 12 day experiment. Overall, the initial, natural plankton community composition was more important for seston stoichiometry and trophic transfer than the manipulation of the inorganic NP ratio, highlighting the importance of plankton community structure for marine ecosystem functioning. © 2019, The Author(s).
Financial support for this study came from the EU FP7 research infrastructure initiative ASSEMBLE (grant agreement no. 227799). Further support came from the Academy of Finland (decision no 259164) and the Walter and Andrée de Nottbeck foundation (KS and TC). The InFlux cytometer was purchased with financing by the FONDEQUIP program (grant EQM130267, CONICYT).
Peer reviewed