Remote, autonomous real-time monitoring of environmental DNA from commercial fish
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Remote, autonomous real-time monitoring of environmental DNA from commercial fish. / Hansen, Brian K.; Jacobsen, Magnus W.; Middelboe, Anne Lise; Preston, Christina M.; Marin, Roman; Bekkevold, Dorte; Knudsen, Steen W.; Møller, Peter R.; Nielsen, Einar E.
I: Scientific Reports, Bind 10, 13272, 2020.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Remote, autonomous real-time monitoring of environmental DNA from commercial fish
AU - Hansen, Brian K.
AU - Jacobsen, Magnus W.
AU - Middelboe, Anne Lise
AU - Preston, Christina M.
AU - Marin, Roman
AU - Bekkevold, Dorte
AU - Knudsen, Steen W.
AU - Møller, Peter R.
AU - Nielsen, Einar E.
PY - 2020
Y1 - 2020
N2 - Environmental DNA (eDNA) is increasingly used for monitoring marine organisms; however, offshore sampling and time lag from sampling to results remain problematic. In order to overcome these challenges a robotic sampler, a 2nd generation Environmental Sample Processor (ESP), was tested for autonomous analysis of eDNA from four commercial fish species in a 4.5 million liter mesocosm. The ESP enabled in situ analysis, consisting of water collection, filtration, DNA extraction and qPCR analysis, which allowed for real-time remote reporting and archival sample collection, consisting of water collection, filtration and chemical preservation followed by post-deployment laboratory analysis. The results demonstrate that the 2G ESP was able to consistently detect and quantify target molecules from the most abundant species (Atlantic mackerel) both in real-time and from the archived samples. In contrast, detection of low abundant species was challenged by both biological and technical aspects coupled to the ecology of eDNA and the 2G ESP instrumentation. Comparison of the in situ analysis and archival samples demonstrated variance, which potentially was linked to diel migration patterns of the Atlantic mackerel. The study demonstrates strong potential for remote autonomous in situ monitoring which open new possibilities for the field of eDNA and marine monitoring.
AB - Environmental DNA (eDNA) is increasingly used for monitoring marine organisms; however, offshore sampling and time lag from sampling to results remain problematic. In order to overcome these challenges a robotic sampler, a 2nd generation Environmental Sample Processor (ESP), was tested for autonomous analysis of eDNA from four commercial fish species in a 4.5 million liter mesocosm. The ESP enabled in situ analysis, consisting of water collection, filtration, DNA extraction and qPCR analysis, which allowed for real-time remote reporting and archival sample collection, consisting of water collection, filtration and chemical preservation followed by post-deployment laboratory analysis. The results demonstrate that the 2G ESP was able to consistently detect and quantify target molecules from the most abundant species (Atlantic mackerel) both in real-time and from the archived samples. In contrast, detection of low abundant species was challenged by both biological and technical aspects coupled to the ecology of eDNA and the 2G ESP instrumentation. Comparison of the in situ analysis and archival samples demonstrated variance, which potentially was linked to diel migration patterns of the Atlantic mackerel. The study demonstrates strong potential for remote autonomous in situ monitoring which open new possibilities for the field of eDNA and marine monitoring.
KW - QUANTIFICATION
U2 - 10.1038/s41598-020-70206-8
DO - 10.1038/s41598-020-70206-8
M3 - Journal article
C2 - 32764624
VL - 10
JO - Scientific Reports
JF - Scientific Reports
SN - 2045-2322
M1 - 13272
ER -
ID: 250488480