Phytoplankton dynamics in the Mar Menor, a Mediterranean coastal lagoon strongly impacted by eutrophication

The Mar Menor hypersaline coastal lagoon has suffered serious degradation in the last three decades attributable to nutrient pollution. In 2015, the lagoon experienced an intensive bloom of cyanobacteria that triggered a drastic change of its ecosystem. Our analyses indicate that phytoplankton in 2016-2021 did not present a seasonal variability pattern; the community was mainly dominated by diatoms and punctually reached abundance peaks above 107 cell L-1 along with chlorophyll a concentrations exceeding 20 & mu;g L-1. The predominant diatom genera during these blooms were different as well as the nutrient conditions under which they were produced. These high diatom abundances are unprecedented in the lagoon; in fact, our data indicate that the taxonomic composition, time variation patterns and cell abundance of phytoplankton in 2016-2021 differ notably in comparison to the data published before 2015. Consequently, our results support the finding that the trophic status of the lagoon has changed profoundly.

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Ouaissa S. Gomez-Jakobsen F. Yebra L. Ferrera I. Moreno-Ostos E. Belando M.D. Ruiz J.M. y Mercado J.M. Phytoplankton dynamics in the Mar Menor a Mediterranean coastal lagoon strongly impacted by eutrophication. Elsevier B.V., 2023. https://doi.org/10.1016/j.marpolbul.2023.115074

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Retrieved: 18 Dec 2025 02:07:19
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Basic information
Resource type Article
Date of creation 2024-11-05
Date of last revision 2024-11-05
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Metadata identifier 879a060a-212d-5b8f-b5ed-950e3eff70f8
Metadata language Spanish
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High-value dataset category Earth observation and environment
ISO 19115 topic category biota
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Bibliographic information
Name of the dataset creator Ouaissa, S., Gomez-Jakobsen, F., Yebra, L., Ferrera, I., Moreno-Ostos, E., Belando, M.D., Ruiz, J.M. y Mercado, J.M.
Name of the dataset editor Elsevier B.V.
Other identifier DOI: 10.1016/j.marpolbul.2023.115074
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Email of the dataset creator jesus.mercado@ieo.csic.es
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