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Title

Assessment of microbial plankton diversity as an ecological indicator in the NW Mediterranean coast

AuthorsFerrera, Isabel CSIC ORCID; Reñé, Albert CSIC ORCID ; Funosas, David; Camp, Jordi CSIC ORCID ; Massana, Ramon CSIC ORCID ; Gasol, Josep M. CSIC ORCID ; Garcés, Esther CSIC ORCID CVN
KeywordsPlankton diversity
High-throughput sequencing
Coastal marine monitoring
Ecological indicators
Anthropogenic pressures
Eutrophication
Issue DateNov-2020
PublisherElsevier
CitationMarine Pollution Bulletin 160: 111691 (2020)
AbstractHigh-throughput sequencing of microbial assemblages has been proposed as an alternative methodology to the traditional ones used in marine monitoring and environmental assessment. Here, we evaluated pico- and nanoplankton diversity as ecological indicators in NW Mediterranean coastal waters by comparing their diversity in samples subjected to varying degrees of continental pressures. Using metabarcoding of the 16S and 18S rRNA genes, we explored whether alphadiversity indices, abundance of Operational Taxonomic Units and taxonomic groups (and their ratios) provide information on the ecological quality of coastal waters. Our results revealed that only eukaryotic diversity metrics and a limited number of prokaryotic and eukaryotic taxa displayed potential in assessing continental influences in our surveyed area, resulting thus in a restrained potential of microbial plankton diversity as an ecological indicator. Therefore, incorporating microbial plankton diversity in environmental assessment could not always result in a significant improvement of current marine monitoring strategies
Description12 pages, 7 figures, 2 tables, supplementary material https://doi.org/10.1016/j.marpolbul.2020.111691
Publisher version (URL)https://doi.org/10.1016/j.marpolbul.2020.111691
URIhttp://hdl.handle.net/10261/222044
DOI10.1016/j.marpolbul.2020.111691
ISSN0025-326X
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