Alpha and beta diversity patterns of polychaete assemblages across the nodule province of the eastern Clarion-Clipperton Fracture Zone (equatorial Pacific)

Bonifácio, Paulo; Martínez Arbizu, Pedro; Menot, Lénaïck

doi:https://doi.org/10.5194/bg-17-865-2020

Articles | Volume 17, issue 4

https://doi.org/10.5194/bg-17-865-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

Assessing environmental impacts of deep-sea mining...

https://doi.org/10.5194/bg-17-865-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 17, issue 4

Research article

|

20 Feb 2020

Research article |

| 20 Feb 2020

Alpha and beta diversity patterns of polychaete assemblages across the nodule province of the eastern Clarion-Clipperton Fracture Zone (equatorial Pacific)

Paulo Bonifácio, Pedro Martínez Arbizu, and Lénaïck Menot

Data sets

The polychaete fauna of the Clarion-Clipperton Fracture Zone from boxcore samples during SONNE cruise SO239 P. Bonifácio, L. Neal, E. Omnes, B. François, T. G. Dahlgren, and L. Menot https://doi.org/10.1594/PANGAEA.902860

Polychaete sequences from Clarion-Clipperton Fracture Zone sampled with box-corer during SONNE cruise SO239, BOLD P. Bonifácio https://doi.org/10.5883/DS-GKG001

Short summary

The patterns observed in the composition of polychaete assemblages were attributed to variations in food supply at the regional scale and nodule density at the local scale. The high levels of species replacement were mainly driven by rare species, leading to regional species pool estimates between 498 and 240 000 species. The high proportion of singletons seems reflect an under-sampling bias that is currently preventing the assessment of potential biodiversity loss due to nodule mining.