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Artículo

Drivers of phytoplankton production and community structure in nutrient-poor estuaries receiving terrestrial organic inflow

Paczkowska, Joanna MariannaIcon ; Rowe, Owen F.; Figueroa, Daniela; Andersson, Agneta
Fecha de publicación: 10/2019
Editorial: Elsevier
Revista: Marine Environmental Research
ISSN: 0141-1136
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Biología Marina, Limnología

Resumen

The influence of nutrient availability and light conditions on phytoplankton size-structure, nutritional strategy and production was studied in a phosphorus-poor estuary in the northern Baltic Sea receiving humic-rich river water. The relative biomass of mixotrophic nanophytoplankton peaked in spring when heterotrophic bacterial production was high, while autotrophic microphytoplankton had their maximum in summer when primary production displayed highest values. Limiting substance (phosphorus) only showed small temporal variations, and the day light was at saturating levels all through the study period. We also investigated if the phytoplankton taxonomic richness influences the production. Structural equation modelling indicated that an increase of the taxonomic richness during the warm summer combined with slightly higher phosphorus concentration lead to increased resource use efficiency, which in turn caused higher phytoplankton biomass and primary production. Our results suggest that climate warming would lead to higher primary production in northerly shallow coastal areas, which are influenced by humic-rich river run-off from un-disturbed terrestrial systems.
Palabras clave: PHYTOPLANKTON , SIZE-STRUCTURE , PRIMARY PRODUCTION , AUTOTROPHY , MIXOTROPHY , TAXONOMIC RICHNESS , RESOURCE USE EFFICIENCY , COASTAL WATERS , PHOSPHORUS-POOR ESTUARIES
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Atribución-NoComercial-SinDerivadas 2.5 Argentina (CC BY-NC-ND 2.5 AR)
Identificadores
URI: http://hdl.handle.net/11336/119515
DOI: http://dx.doi.org/10.1016/j.marenvres.2019.104778
URL: https://www.sciencedirect.com/science/article/pii/S0141113619302132?via%3Dihub
Colecciones
Articulos(CESIMAR)
Articulos de CENTRO PARA EL ESTUDIO DE SISTEMAS MARINOS
Citación
Paczkowska, Joanna Marianna; Rowe, Owen F.; Figueroa, Daniela; Andersson, Agneta; Drivers of phytoplankton production and community structure in nutrient-poor estuaries receiving terrestrial organic inflow; Elsevier; Marine Environmental Research; 151; 10-2019; 1-10
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