No barrier to emergence of bathyal king crabs on the Antarctic shelf

Richard B. Aronson; Kathryn E. Smith; Stephanie C. Vos; James B. McClintock; Margaret O. Amsler; Per-Olav Moksnes; Daniel S. Ellis; Jeffrey Kaeli; Hanumant Singh; John W. Bailey; Jessica C. Schiferl; Robert van Woesik; Michael A. Martin; Brittan V. Steffel; Michelle E. Deal; Steven M. Lazarus; Jonathan N. Havenhand; Rasmus Swalethorp; Sanne Kjellerup; Sven Thatje

doi:10.1073/pnas.1513962112

No barrier to emergence of bathyal king crabs on the Antarctic shelf

Richard B. Aronson, Kathryn E. Smith, Stephanie C. Vos, James B. McClintock, Margaret O. Amsler, Per-Olav Moksnes, Daniel S. Ellis, Jeffrey Kaeli, Hanumant Singh, John W. Bailey, Jessica C. Schiferl, Robert van Woesik, Michael A. Martin, Brittan V. Steffel, Michelle E. Deal, Steven M. Lazarus, Jonathan N. Havenhand, Rasmus Swalethorp, Sanne Kjellerup, Sven Thatje

National Institute of Aquatic Resources

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Abstract

Significance For tens of millions of years, cold conditions have excluded shell-crushing fish and crustaceans from the continental shelf surrounding Antarctica. Rapid warming is now allowing predatory crustaceans to return. Our study of the continental slope off the western Antarctic Peninsula showed that abundant, predatory king crabs comprise a reproductively viable population at 841- to 2,266-m depth. Depth profiles of temperature, salinity, habitat structure, food availability, and predators indicate that there are no barriers to prevent king crabs from moving upward onto the outer shelf at 400–550 m. A cold-water barrier above 200 m could be breached within the next few decades. Emergence of king crabs on the shelf could have catastrophic consequences for the unique seafloor communities of Antarctica.

Original language	English
Journal	Proceedings of the National Academy of Sciences
Volume	112
Issue number	42
Pages (from-to)	12997-13002
ISSN	0027-8424
DOIs	https://doi.org/10.1073/pnas.1513962112
Publication status	Published - 2015

Keywords

Biological Sciences
Ecology

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Aronson, R. B., Smith, K. E., Vos, S. C., McClintock, J. B., Amsler, M. O., Moksnes, P.-O., Ellis, D. S., Kaeli, J., Singh, H., Bailey, J. W., Schiferl, J. C., van Woesik, R., Martin, M. A., Steffel, B. V., Deal, M. E., Lazarus, S. M., Havenhand, J. N., Swalethorp, R., Kjellerup, S., & Thatje, S. (2015). No barrier to emergence of bathyal king crabs on the Antarctic shelf. Proceedings of the National Academy of Sciences, 112(42), 12997-13002. https://doi.org/10.1073/pnas.1513962112

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title = "No barrier to emergence of bathyal king crabs on the Antarctic shelf",

abstract = "Significance For tens of millions of years, cold conditions have excluded shell-crushing fish and crustaceans from the continental shelf surrounding Antarctica. Rapid warming is now allowing predatory crustaceans to return. Our study of the continental slope off the western Antarctic Peninsula showed that abundant, predatory king crabs comprise a reproductively viable population at 841- to 2,266-m depth. Depth profiles of temperature, salinity, habitat structure, food availability, and predators indicate that there are no barriers to prevent king crabs from moving upward onto the outer shelf at 400–550 m. A cold-water barrier above 200 m could be breached within the next few decades. Emergence of king crabs on the shelf could have catastrophic consequences for the unique seafloor communities of Antarctica.",

keywords = "Biological Sciences, Ecology",

author = "Aronson, {Richard B.} and Smith, {Kathryn E.} and Vos, {Stephanie C.} and McClintock, {James B.} and Amsler, {Margaret O.} and Per-Olav Moksnes and Ellis, {Daniel S.} and Jeffrey Kaeli and Hanumant Singh and Bailey, {John W.} and Schiferl, {Jessica C.} and {van Woesik}, Robert and Martin, {Michael A.} and Steffel, {Brittan V.} and Deal, {Michelle E.} and Lazarus, {Steven M.} and Havenhand, {Jonathan N.} and Rasmus Swalethorp and Sanne Kjellerup and Sven Thatje",

year = "2015",

doi = "10.1073/pnas.1513962112",

language = "English",

volume = "112",

pages = "12997--13002",

journal = "Proceedings of the National Academy of Sciences",

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Aronson, RB, Smith, KE, Vos, SC, McClintock, JB, Amsler, MO, Moksnes, P-O, Ellis, DS, Kaeli, J, Singh, H, Bailey, JW, Schiferl, JC, van Woesik, R, Martin, MA, Steffel, BV, Deal, ME, Lazarus, SM, Havenhand, JN, Swalethorp, R, Kjellerup, S & Thatje, S 2015, 'No barrier to emergence of bathyal king crabs on the Antarctic shelf', Proceedings of the National Academy of Sciences, vol. 112, no. 42, pp. 12997-13002. https://doi.org/10.1073/pnas.1513962112

TY - JOUR

T1 - No barrier to emergence of bathyal king crabs on the Antarctic shelf

AU - Aronson, Richard B.

AU - Smith, Kathryn E.

AU - Vos, Stephanie C.

AU - McClintock, James B.

AU - Amsler, Margaret O.

AU - Moksnes, Per-Olav

AU - Ellis, Daniel S.

AU - Kaeli, Jeffrey

AU - Singh, Hanumant

AU - Bailey, John W.

AU - Schiferl, Jessica C.

AU - van Woesik, Robert

AU - Martin, Michael A.

AU - Steffel, Brittan V.

AU - Deal, Michelle E.

AU - Lazarus, Steven M.

AU - Havenhand, Jonathan N.

AU - Swalethorp, Rasmus

AU - Kjellerup, Sanne

AU - Thatje, Sven

PY - 2015

Y1 - 2015

N2 - Significance For tens of millions of years, cold conditions have excluded shell-crushing fish and crustaceans from the continental shelf surrounding Antarctica. Rapid warming is now allowing predatory crustaceans to return. Our study of the continental slope off the western Antarctic Peninsula showed that abundant, predatory king crabs comprise a reproductively viable population at 841- to 2,266-m depth. Depth profiles of temperature, salinity, habitat structure, food availability, and predators indicate that there are no barriers to prevent king crabs from moving upward onto the outer shelf at 400–550 m. A cold-water barrier above 200 m could be breached within the next few decades. Emergence of king crabs on the shelf could have catastrophic consequences for the unique seafloor communities of Antarctica.

AB - Significance For tens of millions of years, cold conditions have excluded shell-crushing fish and crustaceans from the continental shelf surrounding Antarctica. Rapid warming is now allowing predatory crustaceans to return. Our study of the continental slope off the western Antarctic Peninsula showed that abundant, predatory king crabs comprise a reproductively viable population at 841- to 2,266-m depth. Depth profiles of temperature, salinity, habitat structure, food availability, and predators indicate that there are no barriers to prevent king crabs from moving upward onto the outer shelf at 400–550 m. A cold-water barrier above 200 m could be breached within the next few decades. Emergence of king crabs on the shelf could have catastrophic consequences for the unique seafloor communities of Antarctica.

KW - Biological Sciences

KW - Ecology

U2 - 10.1073/pnas.1513962112

DO - 10.1073/pnas.1513962112

M3 - Journal article

C2 - 26417090

SN - 0027-8424

VL - 112

SP - 12997

EP - 13002

JO - Proceedings of the National Academy of Sciences

JF - Proceedings of the National Academy of Sciences

IS - 42

ER -

No barrier to emergence of bathyal king crabs on the Antarctic shelf

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