2021
DOI: 10.1111/faf.12553
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Sifting environmental DNA metabarcoding data sets for rapid reconstruction of marine food webs

Abstract: Marine ecosystems are changing rapidly due to ocean warming, overfishing and a raft of other anthropogenic impacts. Such changes are expected to disrupt productivity dynamics and alter marine food webs, with likely negative consequences for ecosystem services. It is, therefore, essential to devise and implement methods that can rapidly and inexpensively monitor changes in the marine food web structure. Unfortunately, conventional methods for surveying marine food webs are typically laborious, expensive and oft… Show more

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Cited by 26 publications
(19 citation statements)
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“…One example is sharks, of which several species are endangered and difficult to monitor due to their elusiveness and high mobility. An elasmobranch-specific metabarcoding assay was proven effective in characterizing shark diversity around Reunion Island (Mariani et al, 2021) and detecting temporal fluctuations during the study period. Great white shark (Carcharodon carcharias) eDNA was also identified in the open ocean (Truelove;Andruszkiewicz & Block, 2019), showing the potential for eDNA to be used in concert with visual surveys to eventually replace invasive capture-based techniques.…”
Section: The Elusive Rare and Endangered: Edna As A Non-invasive Methodsmentioning
confidence: 99%
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“…One example is sharks, of which several species are endangered and difficult to monitor due to their elusiveness and high mobility. An elasmobranch-specific metabarcoding assay was proven effective in characterizing shark diversity around Reunion Island (Mariani et al, 2021) and detecting temporal fluctuations during the study period. Great white shark (Carcharodon carcharias) eDNA was also identified in the open ocean (Truelove;Andruszkiewicz & Block, 2019), showing the potential for eDNA to be used in concert with visual surveys to eventually replace invasive capture-based techniques.…”
Section: The Elusive Rare and Endangered: Edna As A Non-invasive Methodsmentioning
confidence: 99%
“…When applied to an ecosystem over time, eDNA analyses may also allow for the identification of potential indicator species for different ecosystem states. D'Alessandro and Mariani (2021) proposed a novel method for reconstructing trophic networks based on DNA metabarcoding datasets of marine communities, combined with a literature review to identify all possible consumer-resource interactions. With this approach of simplified and rapid food web reconstructions, the authors were able to identify noteworthy features of food webs, which can be used to make predictions about impacts of environmental changes, NIS, and loss of keystone species.…”
Section: Edna For Food Web Reconstructions Network Analyses and Ecosy...mentioning
confidence: 99%
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“…Alternatively, molecular advancements with the analysis of trace DNA from environmental samples (i.e., environmental DNA or 'eDNA') have provided researchers and managers the ability to scale up documentation and monitoring of such relationships, and to do so at increased spatiotemporal frequencies with more cost effectiveness (see Figure 1). Methodological development for the application of eDNA has rapidly evolved from presence/absence detection of organisms (Ficetola et al, 2008) and abundance quantification of eDNA signals (Taberlet et al, 2012), to the detection of whole communities (Deiner et al, 2021) and even their trophic interactions (Thomsen & Sigsgaard, 2019;D'Alessandro & Mariani 2021). Indeed, eDNA-based methods have experienced a sharp adoption in different fields such as conservation biology (e.g., detection of endangered or invasive species; Piaggio et al, 2014;Stewart et al 2017), ecological biomonitoring in terrestrial and aquatic ecosystem (e.g., environmental health monitoring; Xie et al, 2017), wildlife forensics (Allwood et al, 2020), wildlife disease monitoring (Barnes et al, 2020), and animal behaviour (Nichols et al, 2015).…”
Section: Introductionmentioning
confidence: 99%
“…Methodological development for the sampling and sequencing of eDNA has rapidly evolved from presence/absence detection of organisms (Ficetola et al, 2008) and the abundance and quantification data of eDNA signals (Taberlet et al, 2012), to the detection of the whole communities , and even their trophic interactions (Thomsen & Sigsgaard, 2019;D'Alessandro & Mariani 2021). Indeed, eDNA-based methods have seen a sharp increase in adoption (Veilleux et al, 2021) and development into different fields, such as conservation biology (e.g., detection of endangered or invasive species; Piaggio et al, 2014;Stewart et al 2017), ecological biomonitoring in terrestrial and aquatic ecosystem (e.g., environmental health monitoring; Xie et al, 2017), wildlife forensics (Allwood et al, 2020), wildlife disease monitoring (Barnes et al, 2020), and animal behavior (Nichols et al, 2015).…”
Section: Introductionmentioning
confidence: 99%