Giant sponge grounds of Central Arctic seamounts are associated with extinct seep life

T. M. Morganti (), B. M. Slaby, A. Kluijver, K. Busch, U. Hentschel, J. J. Middelburg, H. Grotheer, G. Mollenhauer, J. Dannheim, H. T. Rapp, A. Purser and A. Boetius ()
Additional contact information
T. M. Morganti: Max Planck Institute for Marine Microbiology
B. M. Slaby: GEOMAR Helmholtz Centre for Ocean Research Kiel
A. Kluijver: Utrecht University, Department of Earth Sciences
K. Busch: GEOMAR Helmholtz Centre for Ocean Research Kiel
U. Hentschel: GEOMAR Helmholtz Centre for Ocean Research Kiel
J. J. Middelburg: Utrecht University, Department of Earth Sciences
H. Grotheer: Alfred Wegener Institute Helmholtz Center for Polar and Marine Research
G. Mollenhauer: University of Bremen
J. Dannheim: Alfred Wegener Institute Helmholtz Center for Polar and Marine Research
H. T. Rapp: University of Bergen, Department of Biological Sciences and K.G. Jebsen Centre for Deep-Sea Research
A. Purser: Alfred Wegener Institute Helmholtz Center for Polar and Marine Research
A. Boetius: Max Planck Institute for Marine Microbiology

Nature Communications, 2022, vol. 13, issue 1, 1-15

Abstract: Abstract The Central Arctic Ocean is one of the most oligotrophic oceans on Earth because of its sea-ice cover and short productive season. Nonetheless, across the peaks of extinct volcanic seamounts of the Langseth Ridge (87°N, 61°E), we observe a surprisingly dense benthic biomass. Bacteriosponges are the most abundant fauna within this community, with a mass of 460 g C m−2 and an estimated carbon demand of around 110 g C m−2 yr−1, despite export fluxes from regional primary productivity only sufficient to provide

Date: 2022
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DOI: 10.1038/s41467-022-28129-7

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