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Deep-sea ecosystems of the North Atlantic Ocean: discovery, status, function and future challenges

Deep-sea ecosystems of the North Atlantic Ocean: discovery, status, function and future challenges
Deep-sea ecosystems of the North Atlantic Ocean: discovery, status, function and future challenges

The North Atlantic is an ocean basin with a diversity of deep-sea ecosystems. Here we provide a summary of the topography and oceanography of the North Atlantic including the Gulf of Mexico and Caribbean Sea, provide a brief overview of the history of scientific research therein, and review the current status of knowledge of each of 18 pelagic and benthic deep-sea ecosystems, with a particular focus on knowledge gaps. We analyse biodiversity data records across the North Atlantic and highlight spatial data gaps that could provide important foci for future expeditions. We note particular data gaps in EEZs of nations within and bordering the Caribbean Sea. Our data provide a baseline against which progress can be tracked into the future. We review human impacts caused by fishing, shipping, mineral extraction, introduction of substances, and climate change, and provide an overview of international, regional and national measures to protect ecosystems. We recommend that scientific research in the deep sea should focus on increasing knowledge of the distribution and the connectivity of key species and habitats, and increasing our understanding of the processes leading to the delivery of ecosystem services. These three pillars - distribution, connectivity, ecosystem function - will provide the knowledge required to implement conservation and management measures to ensure that any deep-sea development in the future is sustainable. Infrastructure and capacity are unevenly distributed and implementation of strategies that will lead to more equitable deep-sea science is required to ensure that essential science can be delivered.

Connectivity, Deep sea, Ecosystem services, Marine policy, North Atlantic
0967-0637
Allcock, A. Louise
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Amon, Diva J.
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Bridges, Amelia E.H.
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Copley, Jonathan T.
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Cordes, Erik
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Cortés, Jorge
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Croquer, Aldo
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Foster, Nicola L.
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Frutos, Inmaculada
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Gasbarro, Ryan
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Gates, Andrew R.
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Gomes, Marta
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Goodwin, Lucy V.M.
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Horton, Tammy
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Hourigan, Thomas
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Hoving, Henk Jan
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Jones, Daniel O.B.
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Joshi, Siddhi
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Kingon, Kelly C.
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Lörz, Anne Nina
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Martins, Ana
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Merten, Véronique
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Metaxas, Anna
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Milligan, Rosanna J.
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Molodtsova, Tina N.
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Morato, Telmo
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et al.
Allcock, A. Louise
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Amon, Diva J.
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Bridges, Amelia E.H.
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Colaço, Ana
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Escobar-Briones, Elva
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Hilário, Ana
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Howell, Kerry L.
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Mestre, Nélia C.
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Muller-Karger, Frank E.
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Priede, Imants G.
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Snelgrove, Paul V.R.
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Sealey, Kathleen Sullivan
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Xavier, Joana R.
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Addamo, Anna M.
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Amaro, Teresa
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Bandara, Gayathra
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Brix, Saskia
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Cambronero-Solano, Sergio
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Cedeño – Posso, Cristina
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Copley, Jonathan T.
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Cordes, Erik
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Cortés, Jorge
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Croquer, Aldo
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Cuvelier, Daphne
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Davies, Jaime S.
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Durden, Jennifer M.
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Esquete, Patricia
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Foster, Nicola L.
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Frutos, Inmaculada
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Gasbarro, Ryan
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Gates, Andrew R.
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Gomes, Marta
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Goodwin, Lucy V.M.
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Horton, Tammy
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Hourigan, Thomas
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Hoving, Henk Jan
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Jones, Daniel O.B.
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Joshi, Siddhi
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Kingon, Kelly C.
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Lörz, Anne Nina
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Martins, Ana
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Merten, Véronique
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Metaxas, Anna
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Milligan, Rosanna J.
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Molodtsova, Tina N.
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Morato, Telmo
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Morrissey, Declan
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Allcock, A. Louise, Amon, Diva J. and Bridges, Amelia E.H. , et al. (2025) Deep-sea ecosystems of the North Atlantic Ocean: discovery, status, function and future challenges. Deep-Sea Research Part I: Oceanographic Research Papers, 226, [104580]. (doi:10.1016/j.dsr.2025.104580).

Record type: Review

Abstract

The North Atlantic is an ocean basin with a diversity of deep-sea ecosystems. Here we provide a summary of the topography and oceanography of the North Atlantic including the Gulf of Mexico and Caribbean Sea, provide a brief overview of the history of scientific research therein, and review the current status of knowledge of each of 18 pelagic and benthic deep-sea ecosystems, with a particular focus on knowledge gaps. We analyse biodiversity data records across the North Atlantic and highlight spatial data gaps that could provide important foci for future expeditions. We note particular data gaps in EEZs of nations within and bordering the Caribbean Sea. Our data provide a baseline against which progress can be tracked into the future. We review human impacts caused by fishing, shipping, mineral extraction, introduction of substances, and climate change, and provide an overview of international, regional and national measures to protect ecosystems. We recommend that scientific research in the deep sea should focus on increasing knowledge of the distribution and the connectivity of key species and habitats, and increasing our understanding of the processes leading to the delivery of ecosystem services. These three pillars - distribution, connectivity, ecosystem function - will provide the knowledge required to implement conservation and management measures to ensure that any deep-sea development in the future is sustainable. Infrastructure and capacity are unevenly distributed and implementation of strategies that will lead to more equitable deep-sea science is required to ensure that essential science can be delivered.

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1-s2.0-S0967063725001384-main - Version of Record
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Accepted/In Press date: 22 August 2025
e-pub ahead of print date: 28 August 2025
Published date: 24 October 2025
Keywords: Connectivity, Deep sea, Ecosystem services, Marine policy, North Atlantic

Identifiers

Local EPrints ID: 507338
URI: http://eprints.soton.ac.uk/id/eprint/507338
ISSN: 0967-0637
PURE UUID: e6962f4b-1386-458b-a670-0fba4b850d22
ORCID for Jonathan T. Copley: ORCID iD orcid.org/0000-0003-3333-4325

Catalogue record

Date deposited: 04 Dec 2025 17:55
Last modified: 05 Dec 2025 02:33

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Contributors

Author: A. Louise Allcock
Author: Diva J. Amon
Author: Amelia E.H. Bridges
Author: Ana Colaço
Author: Elva Escobar-Briones
Author: Ana Hilário
Author: Kerry L. Howell
Author: Nélia C. Mestre
Author: Frank E. Muller-Karger
Author: Imants G. Priede
Author: Paul V.R. Snelgrove
Author: Kathleen Sullivan Sealey
Author: Joana R. Xavier
Author: Anna M. Addamo
Author: Teresa Amaro
Author: Gayathra Bandara
Author: Narissa Bax
Author: Andreia Braga-Henriques
Author: Angelika Brandt
Author: Saskia Brix
Author: Sergio Cambronero-Solano
Author: Cristina Cedeño – Posso
Author: Erik Cordes
Author: Jorge Cortés
Author: Aldo Croquer
Author: Daphne Cuvelier
Author: Jaime S. Davies
Author: Jennifer M. Durden
Author: Patricia Esquete
Author: Nicola L. Foster
Author: Inmaculada Frutos
Author: Ryan Gasbarro
Author: Andrew R. Gates
Author: Marta Gomes
Author: Lucy V.M. Goodwin
Author: Tammy Horton
Author: Thomas Hourigan
Author: Henk Jan Hoving
Author: Daniel O.B. Jones
Author: Siddhi Joshi
Author: Kelly C. Kingon
Author: Anne Nina Lörz
Author: Ana Martins
Author: Véronique Merten
Author: Anna Metaxas
Author: Rosanna J. Milligan
Author: Tina N. Molodtsova
Author: Telmo Morato
Author: Declan Morrissey
Corporate Author: et al.

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