Biogeochemical consequences of a changing Arctic shelf seafloor ecosystem

Christian  März; Felipe Sales de Freitas; Johan Faust; J Godbold; Sian Henley; Allyson Tessin; Geoffrey Abbott; Ruth L. Airs; Sandra Arndt; David Barnes; L Grange; N Gray; I Head; Katharine  Hendry; Robert Hilton; A Reed; S Ruhl; M Solan; T Souster; Mark Stevenson; Karen Tait; James Ward; S Widdicombe

doi:10.1007/s13280-021-01638-3

Biogeochemical consequences of a changing Arctic shelf seafloor ecosystem

Christian März^*, Felipe Sales de Freitas, Johan Faust, J Godbold, Sian Henley, Allyson Tessin, Geoffrey Abbott, Ruth L. Airs, Sandra Arndt, David Barnes, L Grange, N Gray, I Head, Katharine Hendry, Robert Hilton, A Reed, S Ruhl, M Solan, T Souster, Mark StevensonKaren Tait, James Ward, S Widdicombe

^*Corresponding author for this work

Research output: Contribution to journal › Article (Academic Journal) › peer-review

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Abstract

Unprecedented and dramatic transformations are occurring in the Arctic in response to climate change, but academic, public, and political discourse has disproportionately focussed on the most visible and direct aspects of change, including sea ice melt, permafrost thaw, the fate of charismatic megafauna, and the expansion of fisheries. Such narratives disregard the importance of less visible and indirect processes and, in particular, miss the substantive contribution of the shelf seafloor in regulating nutrients and sequestering carbon. Here, we summarise the biogeochemical functioning of the Arctic shelf seafloor before considering how climate change and regional adjustments to human activities may alter its biogeochemical and ecological dynamics, including ecosystem function, carbon burial, or nutrient recycling. We highlight the importance of the Arctic benthic system in mitigating climatic and anthropogenic change and, with a focus on the Barents Sea, offer some observations and our perspectives on future management and policy.

Original language	English
Pages (from-to)	370-382
Number of pages	13
Journal	AMBIO
Volume	51
Issue number	2
Early online date	9 Oct 2021
DOIs	https://doi.org/10.1007/s13280-021-01638-3
Publication status	Published - Feb 2022

Bibliographical note

Funding Information:
We thank the crew and participants of cruises JR16006, JR17007, and JR18006, RRS James Clark Ross , administrative and technical personnel that conducted analyses, and National Marine Facilities, Southampton and the British Antarctic Survey, Cambridge for logistical support. We are grateful to members and facilitators of the Changing Arctic Ocean Programme and the Nansen LEGACY Project for sharing findings and experiences. Supported by ?The Changing Arctic Ocean Seafloor (ChAOS)? Project (NE/N015894/1, 2017?2021), jointly funded by the Natural Environment Research Council (NERC) in the UK and the German Federal Ministry of Education and Research (BMBF). We also thank two anonymous reviewers and Guest Editor David Thomas for their comments which significantly improved the manuscript.

Funding Information:
We thank the crew and participants of cruises JR16006, JR17007, and JR18006, RRS James Clark Ross, administrative and technical personnel that conducted analyses, and National Marine Facilities, Southampton and the British Antarctic Survey, Cambridge for logistical support. We are grateful to members and facilitators of the Changing Arctic Ocean Programme and the Nansen LEGACY Project for sharing findings and experiences. Supported by ‘The Changing Arctic Ocean Seafloor (ChAOS)’ Project (NE/N015894/1, 2017–2021), jointly funded by the Natural Environment Research Council (NERC) in the UK and the German Federal Ministry of Education and Research (BMBF). We also thank two anonymous reviewers and Guest Editor David Thomas for their comments which significantly improved the manuscript.

Publisher Copyright:
© 2021, The Author(s).

Keywords

Arctic Ocean
biogeochemistry
carbon
ecology
nutrients
trawling

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The Changing Arctic Ocean Seafloor (ChAOS): Understanding its role as biogeochemical reactor for carbon and nutrients
Hendry, K. (Principal Investigator)
1/02/17 → 17/05/22
Project: Research

Early Diagenetic Silicon Cycling in a Changing Arctic Ocean
Ward, J. (Author), Hendry, K. (Supervisor), Arndt, S. (Supervisor) & März, C. (Supervisor), 21 Mar 2023
Student thesis: Doctoral Thesis › Doctor of Philosophy (PhD)

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März, C., Sales de Freitas, F., Faust, J., Godbold, J., Henley, S., Tessin, A., Abbott, G., Airs, R. L., Arndt, S., Barnes, D., Grange, L., Gray, N., Head, I., Hendry, K., Hilton, R., Reed, A., Ruhl, S., Solan, M., Souster, T., ... Widdicombe, S. (2022). Biogeochemical consequences of a changing Arctic shelf seafloor ecosystem. AMBIO, 51(2), 370-382. https://doi.org/10.1007/s13280-021-01638-3

@article{83df07f6332f47eca879370f25b15fee,

title = "Biogeochemical consequences of a changing Arctic shelf seafloor ecosystem",

abstract = "Unprecedented and dramatic transformations are occurring in the Arctic in response to climate change, but academic, public, and political discourse has disproportionately focussed on the most visible and direct aspects of change, including sea ice melt, permafrost thaw, the fate of charismatic megafauna, and the expansion of fisheries. Such narratives disregard the importance of less visible and indirect processes and, in particular, miss the substantive contribution of the shelf seafloor in regulating nutrients and sequestering carbon. Here, we summarise the biogeochemical functioning of the Arctic shelf seafloor before considering how climate change and regional adjustments to human activities may alter its biogeochemical and ecological dynamics, including ecosystem function, carbon burial, or nutrient recycling. We highlight the importance of the Arctic benthic system in mitigating climatic and anthropogenic change and, with a focus on the Barents Sea, offer some observations and our perspectives on future management and policy.",

keywords = "Arctic Ocean, biogeochemistry, carbon, ecology, nutrients, trawling",

author = "Christian M{\"a}rz and {Sales de Freitas}, Felipe and Johan Faust and J Godbold and Sian Henley and Allyson Tessin and Geoffrey Abbott and Airs, {Ruth L.} and Sandra Arndt and David Barnes and L Grange and N Gray and I Head and Katharine Hendry and Robert Hilton and A Reed and S Ruhl and M Solan and T Souster and Mark Stevenson and Karen Tait and James Ward and S Widdicombe",

note = "Funding Information: We thank the crew and participants of cruises JR16006, JR17007, and JR18006, RRS James Clark Ross , administrative and technical personnel that conducted analyses, and National Marine Facilities, Southampton and the British Antarctic Survey, Cambridge for logistical support. We are grateful to members and facilitators of the Changing Arctic Ocean Programme and the Nansen LEGACY Project for sharing findings and experiences. Supported by ?The Changing Arctic Ocean Seafloor (ChAOS)? Project (NE/N015894/1, 2017?2021), jointly funded by the Natural Environment Research Council (NERC) in the UK and the German Federal Ministry of Education and Research (BMBF). We also thank two anonymous reviewers and Guest Editor David Thomas for their comments which significantly improved the manuscript. Funding Information: We thank the crew and participants of cruises JR16006, JR17007, and JR18006, RRS James Clark Ross, administrative and technical personnel that conducted analyses, and National Marine Facilities, Southampton and the British Antarctic Survey, Cambridge for logistical support. We are grateful to members and facilitators of the Changing Arctic Ocean Programme and the Nansen LEGACY Project for sharing findings and experiences. Supported by {\textquoteleft}The Changing Arctic Ocean Seafloor (ChAOS){\textquoteright} Project (NE/N015894/1, 2017–2021), jointly funded by the Natural Environment Research Council (NERC) in the UK and the German Federal Ministry of Education and Research (BMBF). We also thank two anonymous reviewers and Guest Editor David Thomas for their comments which significantly improved the manuscript. Publisher Copyright: {\textcopyright} 2021, The Author(s).",

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März, C, Sales de Freitas, F, Faust, J, Godbold, J, Henley, S, Tessin, A, Abbott, G, Airs, RL, Arndt, S, Barnes, D, Grange, L, Gray, N, Head, I, Hendry, K, Hilton, R, Reed, A, Ruhl, S, Solan, M, Souster, T, Stevenson, M, Tait, K, Ward, J & Widdicombe, S 2022, 'Biogeochemical consequences of a changing Arctic shelf seafloor ecosystem', AMBIO, vol. 51, no. 2, pp. 370-382. https://doi.org/10.1007/s13280-021-01638-3

TY - JOUR

T1 - Biogeochemical consequences of a changing Arctic shelf seafloor ecosystem

AU - März, Christian

AU - Sales de Freitas, Felipe

AU - Faust, Johan

AU - Godbold, J

AU - Henley, Sian

AU - Tessin, Allyson

AU - Abbott, Geoffrey

AU - Airs, Ruth L.

AU - Arndt, Sandra

AU - Barnes, David

AU - Grange, L

AU - Gray, N

AU - Head, I

AU - Hendry, Katharine

AU - Hilton, Robert

AU - Reed, A

AU - Ruhl, S

AU - Solan, M

AU - Souster, T

AU - Stevenson, Mark

AU - Tait, Karen

AU - Ward, James

AU - Widdicombe, S

N1 - Funding Information: We thank the crew and participants of cruises JR16006, JR17007, and JR18006, RRS James Clark Ross , administrative and technical personnel that conducted analyses, and National Marine Facilities, Southampton and the British Antarctic Survey, Cambridge for logistical support. We are grateful to members and facilitators of the Changing Arctic Ocean Programme and the Nansen LEGACY Project for sharing findings and experiences. Supported by ?The Changing Arctic Ocean Seafloor (ChAOS)? Project (NE/N015894/1, 2017?2021), jointly funded by the Natural Environment Research Council (NERC) in the UK and the German Federal Ministry of Education and Research (BMBF). We also thank two anonymous reviewers and Guest Editor David Thomas for their comments which significantly improved the manuscript. Funding Information: We thank the crew and participants of cruises JR16006, JR17007, and JR18006, RRS James Clark Ross, administrative and technical personnel that conducted analyses, and National Marine Facilities, Southampton and the British Antarctic Survey, Cambridge for logistical support. We are grateful to members and facilitators of the Changing Arctic Ocean Programme and the Nansen LEGACY Project for sharing findings and experiences. Supported by ‘The Changing Arctic Ocean Seafloor (ChAOS)’ Project (NE/N015894/1, 2017–2021), jointly funded by the Natural Environment Research Council (NERC) in the UK and the German Federal Ministry of Education and Research (BMBF). We also thank two anonymous reviewers and Guest Editor David Thomas for their comments which significantly improved the manuscript. Publisher Copyright: © 2021, The Author(s).

PY - 2022/2

Y1 - 2022/2

N2 - Unprecedented and dramatic transformations are occurring in the Arctic in response to climate change, but academic, public, and political discourse has disproportionately focussed on the most visible and direct aspects of change, including sea ice melt, permafrost thaw, the fate of charismatic megafauna, and the expansion of fisheries. Such narratives disregard the importance of less visible and indirect processes and, in particular, miss the substantive contribution of the shelf seafloor in regulating nutrients and sequestering carbon. Here, we summarise the biogeochemical functioning of the Arctic shelf seafloor before considering how climate change and regional adjustments to human activities may alter its biogeochemical and ecological dynamics, including ecosystem function, carbon burial, or nutrient recycling. We highlight the importance of the Arctic benthic system in mitigating climatic and anthropogenic change and, with a focus on the Barents Sea, offer some observations and our perspectives on future management and policy.

AB - Unprecedented and dramatic transformations are occurring in the Arctic in response to climate change, but academic, public, and political discourse has disproportionately focussed on the most visible and direct aspects of change, including sea ice melt, permafrost thaw, the fate of charismatic megafauna, and the expansion of fisheries. Such narratives disregard the importance of less visible and indirect processes and, in particular, miss the substantive contribution of the shelf seafloor in regulating nutrients and sequestering carbon. Here, we summarise the biogeochemical functioning of the Arctic shelf seafloor before considering how climate change and regional adjustments to human activities may alter its biogeochemical and ecological dynamics, including ecosystem function, carbon burial, or nutrient recycling. We highlight the importance of the Arctic benthic system in mitigating climatic and anthropogenic change and, with a focus on the Barents Sea, offer some observations and our perspectives on future management and policy.

KW - Arctic Ocean

KW - biogeochemistry

KW - carbon

KW - ecology

KW - nutrients

KW - trawling

U2 - 10.1007/s13280-021-01638-3

DO - 10.1007/s13280-021-01638-3

M3 - Article (Academic Journal)

C2 - 34628602

SN - 1654-7209

VL - 51

SP - 370

EP - 382

JO - AMBIO

JF - AMBIO

IS - 2

ER -

Biogeochemical consequences of a changing Arctic shelf seafloor ecosystem

Abstract

Bibliographical note

Keywords

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The Changing Arctic Ocean Seafloor (ChAOS): Understanding its role as biogeochemical reactor for carbon and nutrients

Student theses

Early Diagenetic Silicon Cycling in a Changing Arctic Ocean

Cite this