Biology of the king crab Paralomis birsteini on the continental slope off the western Antarctic Peninsula
Predatory king crabs (Lithodidae) structure benthic communities in their native habitats and cause shifts in the composition of benthic assemblages when introduced to new environments. Cold temperatures have apparently excluded skeleton-breaking predators from the continental shelf around Antarctica...
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ftsouthampton:oai:eprints.soton.ac.uk:412073 2023-07-30T03:57:59+02:00 Biology of the king crab Paralomis birsteini on the continental slope off the western Antarctic Peninsula Smith, K.E. Aronson, R.B. Thatje, Sven Lovrich, G.A. Amsler, M.O. Steffel, B.V. McClintock, J.B. 2017-06 text https://eprints.soton.ac.uk/412073/ https://eprints.soton.ac.uk/412073/1/Smith_PolarBiol_17.pdf en English eng https://eprints.soton.ac.uk/412073/1/Smith_PolarBiol_17.pdf Smith, K.E., Aronson, R.B., Thatje, Sven, Lovrich, G.A., Amsler, M.O., Steffel, B.V. and McClintock, J.B. (2017) Biology of the king crab Paralomis birsteini on the continental slope off the western Antarctic Peninsula. Polar Biology, 40 (11), 2313-2322. (doi:10.1007/s00300-017-2145-9 <http://dx.doi.org/10.1007/s00300-017-2145-9>). cc_by_4 Article PeerReviewed 2017 ftsouthampton https://doi.org/10.1007/s00300-017-2145-9 2023-07-09T22:16:19Z Predatory king crabs (Lithodidae) structure benthic communities in their native habitats and cause shifts in the composition of benthic assemblages when introduced to new environments. Cold temperatures have apparently excluded skeleton-breaking predators from the continental shelf around Antarctica for millions of years, but recent increases in sea temperatures off the western Antarctic Peninsula (WAP) may be allowing lithodids to return. Imaging surveys have revealed dense populations of the lithodid Paralomis birsteini (Macpherson 1988) living on the continental slope off the WAP, but the biology of these populations remains poorly understood. We collected 51 adult P. birsteini in a trapping study on the slope off Marguerite Bay, WAP from depths of 1200–1400 m. Of the 51 crabs, 42 were males and 9 were females. Four females were ovigerous, carrying eggs at various stages of development. Rates of parasitism and limb regeneration were comparable to populations of lithodids elsewhere in the world, although the proportion of limb loss was relatively high. The parasite Briarosaccus callosus was obvious in both males and females, with one individual bearing hyperparasites. Gill necrosis was also observed in several dissected males. The success of the contemporary populations on the Antarctic slope suggests they have the potential to expand upward to the continental shelf. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctica Polar Biology University of Southampton: e-Prints Soton Antarctic Antarctic Peninsula Macpherson ENVELOPE(155.833,155.833,-82.483,-82.483) Marguerite ENVELOPE(141.378,141.378,-66.787,-66.787) Marguerite Bay ENVELOPE(-68.000,-68.000,-68.500,-68.500) The Antarctic Polar Biology 40 11 2313 2322 |
institution |
Open Polar |
collection |
University of Southampton: e-Prints Soton |
op_collection_id |
ftsouthampton |
language |
English |
description |
Predatory king crabs (Lithodidae) structure benthic communities in their native habitats and cause shifts in the composition of benthic assemblages when introduced to new environments. Cold temperatures have apparently excluded skeleton-breaking predators from the continental shelf around Antarctica for millions of years, but recent increases in sea temperatures off the western Antarctic Peninsula (WAP) may be allowing lithodids to return. Imaging surveys have revealed dense populations of the lithodid Paralomis birsteini (Macpherson 1988) living on the continental slope off the WAP, but the biology of these populations remains poorly understood. We collected 51 adult P. birsteini in a trapping study on the slope off Marguerite Bay, WAP from depths of 1200–1400 m. Of the 51 crabs, 42 were males and 9 were females. Four females were ovigerous, carrying eggs at various stages of development. Rates of parasitism and limb regeneration were comparable to populations of lithodids elsewhere in the world, although the proportion of limb loss was relatively high. The parasite Briarosaccus callosus was obvious in both males and females, with one individual bearing hyperparasites. Gill necrosis was also observed in several dissected males. The success of the contemporary populations on the Antarctic slope suggests they have the potential to expand upward to the continental shelf. |
format |
Article in Journal/Newspaper |
author |
Smith, K.E. Aronson, R.B. Thatje, Sven Lovrich, G.A. Amsler, M.O. Steffel, B.V. McClintock, J.B. |
spellingShingle |
Smith, K.E. Aronson, R.B. Thatje, Sven Lovrich, G.A. Amsler, M.O. Steffel, B.V. McClintock, J.B. Biology of the king crab Paralomis birsteini on the continental slope off the western Antarctic Peninsula |
author_facet |
Smith, K.E. Aronson, R.B. Thatje, Sven Lovrich, G.A. Amsler, M.O. Steffel, B.V. McClintock, J.B. |
author_sort |
Smith, K.E. |
title |
Biology of the king crab Paralomis birsteini on the continental slope off the western Antarctic Peninsula |
title_short |
Biology of the king crab Paralomis birsteini on the continental slope off the western Antarctic Peninsula |
title_full |
Biology of the king crab Paralomis birsteini on the continental slope off the western Antarctic Peninsula |
title_fullStr |
Biology of the king crab Paralomis birsteini on the continental slope off the western Antarctic Peninsula |
title_full_unstemmed |
Biology of the king crab Paralomis birsteini on the continental slope off the western Antarctic Peninsula |
title_sort |
biology of the king crab paralomis birsteini on the continental slope off the western antarctic peninsula |
publishDate |
2017 |
url |
https://eprints.soton.ac.uk/412073/ https://eprints.soton.ac.uk/412073/1/Smith_PolarBiol_17.pdf |
long_lat |
ENVELOPE(155.833,155.833,-82.483,-82.483) ENVELOPE(141.378,141.378,-66.787,-66.787) ENVELOPE(-68.000,-68.000,-68.500,-68.500) |
geographic |
Antarctic Antarctic Peninsula Macpherson Marguerite Marguerite Bay The Antarctic |
geographic_facet |
Antarctic Antarctic Peninsula Macpherson Marguerite Marguerite Bay The Antarctic |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica Polar Biology |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica Polar Biology |
op_relation |
https://eprints.soton.ac.uk/412073/1/Smith_PolarBiol_17.pdf Smith, K.E., Aronson, R.B., Thatje, Sven, Lovrich, G.A., Amsler, M.O., Steffel, B.V. and McClintock, J.B. (2017) Biology of the king crab Paralomis birsteini on the continental slope off the western Antarctic Peninsula. Polar Biology, 40 (11), 2313-2322. (doi:10.1007/s00300-017-2145-9 <http://dx.doi.org/10.1007/s00300-017-2145-9>). |
op_rights |
cc_by_4 |
op_doi |
https://doi.org/10.1007/s00300-017-2145-9 |
container_title |
Polar Biology |
container_volume |
40 |
container_issue |
11 |
container_start_page |
2313 |
op_container_end_page |
2322 |
_version_ |
1772820603668004864 |