Exploring the Biodiversity of a European NATURA 2000 Mediterranean Lagoon through eDNA Metabarcoding

Coastal lagoons are considered important habitats both for ecological functions and biodiversity worldwide. Thus, they provide relevant ecosystem services and valuable natural resources. However, coastal lagoons are highly susceptible to anthropogenic pressures that can cause biodiversity losses and...

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Main Authors: Valeria Specchia, Benedetta Saccomanno, Francesco Zangaro, Eftychia Tzafesta, Maurizio Pinna
Format: Article
Language:English
Published: MDPI AG 2022-11-01
Series:Diversity
Subjects:
Online Access:https://www.mdpi.com/1424-2818/14/11/991
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author Valeria Specchia
Benedetta Saccomanno
Francesco Zangaro
Eftychia Tzafesta
Maurizio Pinna
author_facet Valeria Specchia
Benedetta Saccomanno
Francesco Zangaro
Eftychia Tzafesta
Maurizio Pinna
author_sort Valeria Specchia
collection DOAJ
description Coastal lagoons are considered important habitats both for ecological functions and biodiversity worldwide. Thus, they provide relevant ecosystem services and valuable natural resources. However, coastal lagoons are highly susceptible to anthropogenic pressures that can cause biodiversity losses and require specific biomonitoring programs as well as management measures. In this research, we applied environmental DNA (eDNA) metabarcoding to investigate the biodiversity of a poorly known Mediterranean lagoon included in the European Natura 2000 Network. We used the cytochrome oxidase I (COI) gene marker to capture the entire biodiversity of this highly diversified aquatic coastal environment. With a low sampling effort and rapid laboratory practices, a large amount of valuable biodiversity data was generated and analyzed. Interestingly, this straightforward and broad molecular surveying of biodiversity unveiled a wide variety of taxonomic groups, such as benthic macroinvertebrates, zooplankton, phytoplankton, and macroalgae, which are frequently used as ecological indicators. We were able to detect species that were previously morphologically identified, as well as species never identified before. This research underlines the validity of eDNA metabarcoding in assessing the biodiversity in a poorly known and protected Mediterranean lagoon ecosystem, as well as in identifying the early warnings of environmental stressors. Finally, the research highlights the need to investigate multiple target genes and primers set for a larger analysis of specific species.
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spelling doaj.art-94c6dedc4fd3466099eae98afbdcd6012023-11-24T08:06:23ZengMDPI AGDiversity1424-28182022-11-01141199110.3390/d14110991Exploring the Biodiversity of a European NATURA 2000 Mediterranean Lagoon through eDNA MetabarcodingValeria Specchia0Benedetta Saccomanno1Francesco Zangaro2Eftychia Tzafesta3Maurizio Pinna4Department of Biological and Environmental Sciences and Technologies, DiSTeBA, University of Salento, Via Monteroni 165, 73100 Lecce, ItalyDepartment of Biological and Environmental Sciences and Technologies, DiSTeBA, University of Salento, Via Monteroni 165, 73100 Lecce, ItalyDepartment of Biological and Environmental Sciences and Technologies, DiSTeBA, University of Salento, Via Monteroni 165, 73100 Lecce, ItalyDepartment of Biological and Environmental Sciences and Technologies, DiSTeBA, University of Salento, Via Monteroni 165, 73100 Lecce, ItalyDepartment of Biological and Environmental Sciences and Technologies, DiSTeBA, University of Salento, Via Monteroni 165, 73100 Lecce, ItalyCoastal lagoons are considered important habitats both for ecological functions and biodiversity worldwide. Thus, they provide relevant ecosystem services and valuable natural resources. However, coastal lagoons are highly susceptible to anthropogenic pressures that can cause biodiversity losses and require specific biomonitoring programs as well as management measures. In this research, we applied environmental DNA (eDNA) metabarcoding to investigate the biodiversity of a poorly known Mediterranean lagoon included in the European Natura 2000 Network. We used the cytochrome oxidase I (COI) gene marker to capture the entire biodiversity of this highly diversified aquatic coastal environment. With a low sampling effort and rapid laboratory practices, a large amount of valuable biodiversity data was generated and analyzed. Interestingly, this straightforward and broad molecular surveying of biodiversity unveiled a wide variety of taxonomic groups, such as benthic macroinvertebrates, zooplankton, phytoplankton, and macroalgae, which are frequently used as ecological indicators. We were able to detect species that were previously morphologically identified, as well as species never identified before. This research underlines the validity of eDNA metabarcoding in assessing the biodiversity in a poorly known and protected Mediterranean lagoon ecosystem, as well as in identifying the early warnings of environmental stressors. Finally, the research highlights the need to investigate multiple target genes and primers set for a larger analysis of specific species.https://www.mdpi.com/1424-2818/14/11/991eDNA metabarcodingcytochrome oxidase I (COI)Aquatina LagoonEuropean Union NATURA 2000 Networkbiodiversity assessment
spellingShingle Valeria Specchia
Benedetta Saccomanno
Francesco Zangaro
Eftychia Tzafesta
Maurizio Pinna
Exploring the Biodiversity of a European NATURA 2000 Mediterranean Lagoon through eDNA Metabarcoding
Diversity
eDNA metabarcoding
cytochrome oxidase I (COI)
Aquatina Lagoon
European Union NATURA 2000 Network
biodiversity assessment
title Exploring the Biodiversity of a European NATURA 2000 Mediterranean Lagoon through eDNA Metabarcoding
title_full Exploring the Biodiversity of a European NATURA 2000 Mediterranean Lagoon through eDNA Metabarcoding
title_fullStr Exploring the Biodiversity of a European NATURA 2000 Mediterranean Lagoon through eDNA Metabarcoding
title_full_unstemmed Exploring the Biodiversity of a European NATURA 2000 Mediterranean Lagoon through eDNA Metabarcoding
title_short Exploring the Biodiversity of a European NATURA 2000 Mediterranean Lagoon through eDNA Metabarcoding
title_sort exploring the biodiversity of a european natura 2000 mediterranean lagoon through edna metabarcoding
topic eDNA metabarcoding
cytochrome oxidase I (COI)
Aquatina Lagoon
European Union NATURA 2000 Network
biodiversity assessment
url https://www.mdpi.com/1424-2818/14/11/991
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