The global depth range of marine fishes and their genetic coverage for environmental DNA metabarcoding.

ABSTRACT: The bathymetric and geographical distribution of marine species represent a key information in biodiversity conservation. Yet, deep-sea ecosystems are among the least explored on Earth and are increasingly impacted by human activities. Environmental DNA (eDNA) metabarcoding has emerged as a promising method to study fish biodiversity but applications to the deep-sea are still scarce. A major limitation in the application of eDNA metabarcoding is the incompleteness of species sequences available in public genetic databases which reduces the extent of detected species. This incompleteness by depth is still unknown. Here, we built the global bathymetric and geographical distribution of 10,826 actinopterygian and 960 chondrichthyan fish species. We assessed their genetic coverage by depth and

SUBMITTER: Duhamet A 

PROVIDER: S-EPMC9846838 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature