Environmental DNA helps reveal reef shark distribution across a remote archipelago

Nicholas Dunn,David J. Curnick,Chris Carbone,Aaron B. Carlisle,Taylor K. Chapple,Rosalie Dowell,Francesco Ferretti,David M.P. Jacoby,Robert J. Schallert,Margaux Steyaert,David M. Tickler,Michael J. Williamson,Barbara A. Block,Vincent Savolainen

ECOLOGICAL INDICATORS（2023）

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摘要

•Species-specific quantitative PCR assays were developed for two reef shark species.•Environmental DNA samples were taken from a remote archipelago in the Indian Ocean.•Both species were detected consistently around a highly protected atoll.•There was sporadic detection around atolls experiencing illegal fishing activity.•eDNA detection did not correlate with concurrent visual survey results or with historical telemetry hotspots.

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关键词

eDNA,Elasmobranch,Illegal fishing,Quantitative PCR,Acoustic telemetry,Underwater visual census

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