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

MARINE POLLUTION BULLETIN

卷:160

Article

Ferrera, Isabel^1,2  Rene, Albert¹  Funosas, David¹  Camp, Jordi¹  Massana, Ramon¹  Gasol, Josep M.¹  Garces, Esther¹ 

[1] CSIC, Dept Biol Marina & Oceanog, Inst Ciencies Mar, Barcelona, Catalunya, Spain

[2] Inst Espanol Oceanog, Ctr Oceanog Malaga, Malaga, Spain

关键词: Plankton diversity;    High-throughput sequencing;    Coastal marine monitoring;    Ecological indicators;    Anthropogenic pressures;    Eutrophication;   

DOI  :  10.1016/j.marpolbul.2020.111691

来源: Elsevier

【 摘 要 】

High-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 nano-plankton 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.

【 授权许可】

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