A global biogeographic regionalization of the benthic ocean

Maureaud, Aurore; Reygondeau, Gabriel; Ingenloff, Kate; Vigneron, Jessica G.; Watling, Les; Winner, Kevin; Jetz, Walter

doi:10.31219/osf.io/nkjvf

Cited by 2 publications

(1 citation statement)

References 68 publications

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“…In addition to the latitudinal regionalization of deep-sea fauna, there is a strong vertical component in the open ocean that is driven by differences in light penetration, temperature, hydrostatic pressure and current regimes, that produces a strong biogeographic pattern for the benthic ocean with enormous importance for its conservation (Maureaud et al 2023). Such depth regionalization was also fundamental in the differences across metazoan assemblages in our study, and many indicator species were signi cantly correlated to the three depth ranges analysed here.…”

Section: Biodiversity Of Sponge Vmes Estimated Through Sponge Nsdnamentioning

confidence: 99%

North Atlantic deep-sea benthic biodiversity unveiled through sponge natural sampler DNA

Riesgo,

Arias,

Gallego

et al. 2024

Preprint

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The deep sea remains the biggest challenge to biodiversity exploration, and anthropogenic disturbances extend well into this realm, calling for urgent management strategies. One of the most diverse, productive, and vulnerable ecosystems in the deep sea are sponge grounds. Currently, environmental DNA (eDNA) metabarcoding is revolutionising the field of biodiversity monitoring, yet complex deep-sea benthic ecosystems remain challenging to assess even with these novel technologies. Here, we evaluate the effectiveness of whole-community metabarcoding to characterise metazoan diversity in sponge grounds across the North Atlantic by leveraging the natural eDNA sampling properties of deep-sea sponges themselves. We sampled 97 sponge tissues from four species across four North-Atlantic biogeographic regions in the deep sea and screened them at the universal COI barcode region. We recovered unprecedented levels of taxonomic diversity per unit effort, especially across the phyla Chordata, Cnidaria, Echinodermata and Porifera, with at least 406 metazoan species. These assemblages identify strong spatial patterns in relation to both latitude and depth, and detect emblematic species currently employed as indicators for these vulnerable habitats. We unveil the remarkable performance of sponges as high-resolution natural samplers of environmental DNA from across the whole animal kingdom and illustrate their vast potential as accurate, low-impact biomonitoring solutions for highly diverse, vulnerable deep-sea ecosystems.

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Section: Biodiversity Of Sponge Vmes Estimated Through Sponge Nsdnamentioning

confidence: 99%

North Atlantic deep-sea benthic biodiversity unveiled through sponge natural sampler DNA

Riesgo,

Arias,

Gallego

et al. 2024

Preprint

View full text Add to dashboard Cite

show abstract

North Atlantic deep-sea benthic biodiversity unveiled through sponge natural sampler DNA

Gallego,

Arias,

Corral-Lou

et al. 2024

Commun Biol

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The deep-sea remains the biggest challenge to biodiversity exploration, and anthropogenic disturbances extend well into this realm, calling for urgent management strategies. One of the most diverse, productive, and vulnerable ecosystems in the deep sea are sponge grounds. Currently, environmental DNA (eDNA) metabarcoding is revolutionising the field of biodiversity monitoring, yet complex deep-sea benthic ecosystems remain challenging to assess even with these novel technologies. Here, we evaluate the effectiveness of whole-community metabarcoding to characterise metazoan diversity in sponge grounds across the North Atlantic by leveraging the natural eDNA sampling properties of deep-sea sponges themselves. We sampled 97 sponge tissues from four species across four North-Atlantic biogeographic regions in the deep sea and screened them using the universal COI barcode region. We recovered unprecedented levels of taxonomic diversity per unit effort, especially across the phyla Chordata, Cnidaria, Echinodermata and Porifera, with at least 406 metazoan species found in our study area. These assemblages identify strong spatial patterns in relation to both latitude and depth, and detect emblematic species currently employed as indicators for these vulnerable habitats. The remarkable performance of this approach in different species of sponges, in different biogeographic regions and across the whole animal kingdom, illustrates the vast potential of natural samplers as high-resolution biomonitoring solutions for highly diverse and vulnerable deep-sea ecosystems.

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A global biogeographic regionalization of the benthic ocean

Abstract: This project is related to the manuscript "A global biogeographic regionalization of the benthic ocean", by Aurore A. Maureaud, Gabriel Reygondeau, Kate Ingenloff, Jessiva G. Vigneron, Les Watling, Kevin Winner, Walter Jetz.

Cited by 2 publications

References 68 publications

North Atlantic deep-sea benthic biodiversity unveiled through sponge natural sampler DNA

North Atlantic deep-sea benthic biodiversity unveiled through sponge natural sampler DNA

North Atlantic deep-sea benthic biodiversity unveiled through sponge natural sampler DNA

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