A large population of king crabs in Palmer Deep on the west Antarctic Peninsula shelf and potential invasive impacts
Lithodid crabs (and other skeleton-crushing predators) may have been excluded from cold Antarctic continental shelf waters for more than 14 Myr. The west Antarctic Peninsula shelf is warming rapidly and has been hypothesized to be soon invaded by lithodids. A remotely operated vehicle survey in Palm...
Published in: | Proceedings of the Royal Society B: Biological Sciences |
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Language: | English |
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2011
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ftvliz:oai:oma.vliz.be:208373 2023-05-15T13:33:15+02:00 A large population of king crabs in Palmer Deep on the west Antarctic Peninsula shelf and potential invasive impacts Smith, C.R. Grange, L.J. Honig, D.L. Naudts, L. Huber, B. Guidi, L. Domack, E. 2011 http://www.vliz.be/nl/open-marien-archief?module=ref&refid=208373 en eng info:eu-repo/semantics/altIdentifier/wos/000299910400024 info:eu-repo/semantics/altIdentifier/doi/doi.org/10.1098/rspb.2011.1496 http://www.vliz.be/nl/open-marien-archief?module=ref&refid=208373 info:eu-repo/semantics/restrictedAccess %3Ci%3EProc.+-+Royal+Soc.,+Biol.+Sci.+279%281730%29%3C%2Fi%3E%3A+1017-1026.+%3Ca+href%3D%22https%3A%2F%2Fdx.doi.org%2F10.1098%2Frspb.2011.1496%22+target%3D%22_blank%22%3Ehttps%3A%2F%2Fdx.doi.org%2F10.1098%2Frspb.2011.1496%3C%2Fa%3E Invasive species Neolithodes Milne-Edwards and Bouvier 1894 Neolithodes yaldwyni PS Antarctica info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2011 ftvliz https://doi.org/10.1098/rspb.2011.1496 2022-05-01T09:33:18Z Lithodid crabs (and other skeleton-crushing predators) may have been excluded from cold Antarctic continental shelf waters for more than 14 Myr. The west Antarctic Peninsula shelf is warming rapidly and has been hypothesized to be soon invaded by lithodids. A remotely operated vehicle survey in Palmer Deep, a basin 120 km onto the Antarctic shelf, revealed a large, reproductive population of lithodids, providing the first evidence that king crabs have crossed the Antarctic shelf. DNA sequencing and morphology indicate the lithodid is Neolithodes yaldwyni Ahyong & Dawson, previously reported only from Ross Sea waters. We estimate a N. yaldwyni population density of 10 600 km -2 and a population size of 1.55 × 10 6 in Palmer Deep, a density similar to lithodid populations of commercial interest around Alaska and South Georgia. The lithodid occurred at depths of more than 850 m and temperatures of more than 1.4°C in Palmer Deep, and was not found in extensive surveys of the colder shelf at depths of 430–725 m. Where N. yaldwyni occurred, crab traces were abundant, megafaunal diversity reduced and echinoderms absent, suggesting that the crabs have major ecological impacts. Antarctic Peninsula shelf waters are warming at approximately 0.01°C yr -1 if N. yaldwyni is currently limited by cold temperatures, it could spread up onto the shelf (400–600 m depths) within 1–2 decades. The Palmer Deep N. yaldwyni population provides an important model for the potential invasive impacts of crushing predators on vulnerable Antarctic shelf ecosystems. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctica Ross Sea Alaska Flanders Marine Institute (VLIZ): Open Marine Archive (OMA) Antarctic Antarctic Peninsula Bouvier ENVELOPE(-68.133,-68.133,-67.233,-67.233) Palmer Deep ENVELOPE(-64.400,-64.400,-64.950,-64.950) Ross Sea The Antarctic Proceedings of the Royal Society B: Biological Sciences 279 1730 1017 1026 |
institution |
Open Polar |
collection |
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA) |
op_collection_id |
ftvliz |
language |
English |
topic |
Invasive species Neolithodes Milne-Edwards and Bouvier 1894 Neolithodes yaldwyni PS Antarctica |
spellingShingle |
Invasive species Neolithodes Milne-Edwards and Bouvier 1894 Neolithodes yaldwyni PS Antarctica Smith, C.R. Grange, L.J. Honig, D.L. Naudts, L. Huber, B. Guidi, L. Domack, E. A large population of king crabs in Palmer Deep on the west Antarctic Peninsula shelf and potential invasive impacts |
topic_facet |
Invasive species Neolithodes Milne-Edwards and Bouvier 1894 Neolithodes yaldwyni PS Antarctica |
description |
Lithodid crabs (and other skeleton-crushing predators) may have been excluded from cold Antarctic continental shelf waters for more than 14 Myr. The west Antarctic Peninsula shelf is warming rapidly and has been hypothesized to be soon invaded by lithodids. A remotely operated vehicle survey in Palmer Deep, a basin 120 km onto the Antarctic shelf, revealed a large, reproductive population of lithodids, providing the first evidence that king crabs have crossed the Antarctic shelf. DNA sequencing and morphology indicate the lithodid is Neolithodes yaldwyni Ahyong & Dawson, previously reported only from Ross Sea waters. We estimate a N. yaldwyni population density of 10 600 km -2 and a population size of 1.55 × 10 6 in Palmer Deep, a density similar to lithodid populations of commercial interest around Alaska and South Georgia. The lithodid occurred at depths of more than 850 m and temperatures of more than 1.4°C in Palmer Deep, and was not found in extensive surveys of the colder shelf at depths of 430–725 m. Where N. yaldwyni occurred, crab traces were abundant, megafaunal diversity reduced and echinoderms absent, suggesting that the crabs have major ecological impacts. Antarctic Peninsula shelf waters are warming at approximately 0.01°C yr -1 if N. yaldwyni is currently limited by cold temperatures, it could spread up onto the shelf (400–600 m depths) within 1–2 decades. The Palmer Deep N. yaldwyni population provides an important model for the potential invasive impacts of crushing predators on vulnerable Antarctic shelf ecosystems. |
format |
Article in Journal/Newspaper |
author |
Smith, C.R. Grange, L.J. Honig, D.L. Naudts, L. Huber, B. Guidi, L. Domack, E. |
author_facet |
Smith, C.R. Grange, L.J. Honig, D.L. Naudts, L. Huber, B. Guidi, L. Domack, E. |
author_sort |
Smith, C.R. |
title |
A large population of king crabs in Palmer Deep on the west Antarctic Peninsula shelf and potential invasive impacts |
title_short |
A large population of king crabs in Palmer Deep on the west Antarctic Peninsula shelf and potential invasive impacts |
title_full |
A large population of king crabs in Palmer Deep on the west Antarctic Peninsula shelf and potential invasive impacts |
title_fullStr |
A large population of king crabs in Palmer Deep on the west Antarctic Peninsula shelf and potential invasive impacts |
title_full_unstemmed |
A large population of king crabs in Palmer Deep on the west Antarctic Peninsula shelf and potential invasive impacts |
title_sort |
large population of king crabs in palmer deep on the west antarctic peninsula shelf and potential invasive impacts |
publishDate |
2011 |
url |
http://www.vliz.be/nl/open-marien-archief?module=ref&refid=208373 |
long_lat |
ENVELOPE(-68.133,-68.133,-67.233,-67.233) ENVELOPE(-64.400,-64.400,-64.950,-64.950) |
geographic |
Antarctic Antarctic Peninsula Bouvier Palmer Deep Ross Sea The Antarctic |
geographic_facet |
Antarctic Antarctic Peninsula Bouvier Palmer Deep Ross Sea The Antarctic |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica Ross Sea Alaska |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica Ross Sea Alaska |
op_source |
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op_relation |
info:eu-repo/semantics/altIdentifier/wos/000299910400024 info:eu-repo/semantics/altIdentifier/doi/doi.org/10.1098/rspb.2011.1496 http://www.vliz.be/nl/open-marien-archief?module=ref&refid=208373 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1098/rspb.2011.1496 |
container_title |
Proceedings of the Royal Society B: Biological Sciences |
container_volume |
279 |
container_issue |
1730 |
container_start_page |
1017 |
op_container_end_page |
1026 |
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1766040482823012352 |