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Title: Evaluation of a eukaryote phylogenetic microarray for environmental monitoring of marine sediments
Authors: Lekang, Katrine; Lanzedn, Anders; Jonassen, Inge; Thompson, Eric; Troedsson, Christofer
Abstract: Increased exploitation of resources in sensitive marine ecosystems emphasizes the importance of knowledge regarding ecological impacts. However, current bio-monitoring practices are limited in terms of target-organisms and temporal resolution. Hence, developing new technologies is vital for enhanced ecosystem understanding. In this study, we have applied a prototype version of a phylogenetic microarray to assess the eukaryote community structures of marine sediments from an area with ongoing oil and gas drilling activity. The results were compared with data from both sequencing (metabarcoding) and morphology-based monitoring to evaluate whether microarrays were capable of detecting ecosystem disturbances. A significant correlation between microarray data and chemical pollution indicators, as well as sequencing-based results, was demonstrated, and several potential indicator organisms for pollution-associated parameters were identified, among them a large fraction of microorganisms not covered by traditional morphology-based monitoring. This suggests that microarrays have a potential in future environmental monitoring.
Issue Date: 2020
Type: Article
DOI: 10.1016/j.marpolbul.2020.111102
ISSN: 0025-326X
E-ISSN: 1879-3363
Funder: Research Council of NorwayResearch Council of Norway [190265/S40]
Appears in Publication types:Artículos científicos

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