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Adaptations to hydrothermal vent life in Kiwa tyleri, a new species of yeti crab from the East Scotia Ridge, Antarctica

Adaptations to hydrothermal vent life in Kiwa tyleri, a new species of yeti crab from the East Scotia Ridge, Antarctica
Adaptations to hydrothermal vent life in Kiwa tyleri, a new species of yeti crab from the East Scotia Ridge, Antarctica
Hydrothermal vents in the Southern Ocean are the physiologically most isolated chemosynthetic environments known. Here, we describe Kiwa tyleri sp. nov., the first species of yeti crab known from the Southern Ocean. Kiwa tyleri belongs to the family Kiwaidae and is the visually dominant macrofauna of two known vent sites situated on the northern and southern segments of the East Scotia Ridge. The species is known to depend on primary productivity by chemosynthetic bacteria and resides at the warm-eurythermal vent environment for most of its life; its short-range distribution away from vents (few metres) is physiologically constrained by the stable, cold waters of the surrounding Southern Ocean. Kiwa tyleri has been shown to present differential life history adaptations in response to this contrasting thermal environment. Morphological adaptations specific to life in warm-eurythermal waters, as found on – or in close proximity of – vent chimneys, are discussed in comparison with adaptations seen in the other two known members of the family (K. hirsuta, K. puravida), which show a preference for low temperature chemosynthetic environments.
1932-6203
Thatje, Sven
f1011fe3-1048-40c0-97c1-e93b796e6533
Marsh, Leigh
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Roterman, Christopher Nicolai
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Mavrogordato, Mark N.
f3e0879b-118a-463a-a130-1c890e9ab547
Linse, Katrin
74d7ddc0-74a1-4777-ac1d-3f39ae1935ad
Thatje, Sven
f1011fe3-1048-40c0-97c1-e93b796e6533
Marsh, Leigh
b9d089aa-91e4-4a2e-b716-a7352616c6a2
Roterman, Christopher Nicolai
ccc2d5ad-f3bd-42db-914f-3ec3dc1fd00f
Mavrogordato, Mark N.
f3e0879b-118a-463a-a130-1c890e9ab547
Linse, Katrin
74d7ddc0-74a1-4777-ac1d-3f39ae1935ad

Thatje, Sven, Marsh, Leigh, Roterman, Christopher Nicolai, Mavrogordato, Mark N. and Linse, Katrin (2015) Adaptations to hydrothermal vent life in Kiwa tyleri, a new species of yeti crab from the East Scotia Ridge, Antarctica. PLoS ONE, 10 (6). (doi:10.1371/journal.pone.0127621).

Record type: Article

Abstract

Hydrothermal vents in the Southern Ocean are the physiologically most isolated chemosynthetic environments known. Here, we describe Kiwa tyleri sp. nov., the first species of yeti crab known from the Southern Ocean. Kiwa tyleri belongs to the family Kiwaidae and is the visually dominant macrofauna of two known vent sites situated on the northern and southern segments of the East Scotia Ridge. The species is known to depend on primary productivity by chemosynthetic bacteria and resides at the warm-eurythermal vent environment for most of its life; its short-range distribution away from vents (few metres) is physiologically constrained by the stable, cold waters of the surrounding Southern Ocean. Kiwa tyleri has been shown to present differential life history adaptations in response to this contrasting thermal environment. Morphological adaptations specific to life in warm-eurythermal waters, as found on – or in close proximity of – vent chimneys, are discussed in comparison with adaptations seen in the other two known members of the family (K. hirsuta, K. puravida), which show a preference for low temperature chemosynthetic environments.

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e-pub ahead of print date: 24 June 2015
Published date: June 2015
Organisations: Ocean and Earth Science

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Local EPrints ID: 376354
URI: https://eprints.soton.ac.uk/id/eprint/376354
ISSN: 1932-6203
PURE UUID: c7570023-26df-45f2-841b-d528397b4e9a

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Date deposited: 17 Apr 2015 14:58
Last modified: 28 Aug 2019 18:43

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Contributors

Author: Sven Thatje
Author: Leigh Marsh
Author: Christopher Nicolai Roterman
Author: Katrin Linse

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