Dancing for food in the deep sea: bacterial farming by a new species of Yeti crab.

Vent and seep animals harness chemosynthetic energy to thrive far from the sun's energy. While symbiont-derived energy fuels many taxa, vent crustaceans have remained an enigma; these shrimps, crabs, and barnacles possess a phylogenetically distinct group of chemosynthetic bacterial epibionts,...

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Main Authors: Andrew R Thurber, William J Jones, Kareen Schnabel
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2011-01-01
Series:PLoS ONE
Online Access:https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/22140426/?tool=EBI
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author Andrew R Thurber
William J Jones
Kareen Schnabel
author_facet Andrew R Thurber
William J Jones
Kareen Schnabel
author_sort Andrew R Thurber
collection DOAJ
description Vent and seep animals harness chemosynthetic energy to thrive far from the sun's energy. While symbiont-derived energy fuels many taxa, vent crustaceans have remained an enigma; these shrimps, crabs, and barnacles possess a phylogenetically distinct group of chemosynthetic bacterial epibionts, yet the role of these bacteria has remained unclear. We test whether a new species of Yeti crab, which we describe as Kiwa puravida n. sp, farms the epibiotic bacteria that it grows on its chelipeds (claws), chelipeds that the crab waves in fluid escaping from a deep-sea methane seep. Lipid and isotope analyses provide evidence that epibiotic bacteria are the crab's main food source and K. puravida n. sp. has highly-modified setae (hairs) on its 3(rd) maxilliped (a mouth appendage) which it uses to harvest these bacteria. The ε- and γ- proteobacteria that this methane-seep species farms are closely related to hydrothermal-vent decapod epibionts. We hypothesize that this species waves its arm in reducing fluid to increase the productivity of its epibionts by removing boundary layers which may otherwise limit carbon fixation. The discovery of this new species, only the second within a family described in 2005, stresses how much remains undiscovered on our continental margins.
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spelling doaj.art-973fd78297d54b56a0af1ea0d59502902022-12-21T21:46:52ZengPublic Library of Science (PLoS)PLoS ONE1932-62032011-01-01611e2624310.1371/journal.pone.0026243Dancing for food in the deep sea: bacterial farming by a new species of Yeti crab.Andrew R ThurberWilliam J JonesKareen SchnabelVent and seep animals harness chemosynthetic energy to thrive far from the sun's energy. While symbiont-derived energy fuels many taxa, vent crustaceans have remained an enigma; these shrimps, crabs, and barnacles possess a phylogenetically distinct group of chemosynthetic bacterial epibionts, yet the role of these bacteria has remained unclear. We test whether a new species of Yeti crab, which we describe as Kiwa puravida n. sp, farms the epibiotic bacteria that it grows on its chelipeds (claws), chelipeds that the crab waves in fluid escaping from a deep-sea methane seep. Lipid and isotope analyses provide evidence that epibiotic bacteria are the crab's main food source and K. puravida n. sp. has highly-modified setae (hairs) on its 3(rd) maxilliped (a mouth appendage) which it uses to harvest these bacteria. The ε- and γ- proteobacteria that this methane-seep species farms are closely related to hydrothermal-vent decapod epibionts. We hypothesize that this species waves its arm in reducing fluid to increase the productivity of its epibionts by removing boundary layers which may otherwise limit carbon fixation. The discovery of this new species, only the second within a family described in 2005, stresses how much remains undiscovered on our continental margins.https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/22140426/?tool=EBI
spellingShingle Andrew R Thurber
William J Jones
Kareen Schnabel
Dancing for food in the deep sea: bacterial farming by a new species of Yeti crab.
PLoS ONE
title Dancing for food in the deep sea: bacterial farming by a new species of Yeti crab.
title_full Dancing for food in the deep sea: bacterial farming by a new species of Yeti crab.
title_fullStr Dancing for food in the deep sea: bacterial farming by a new species of Yeti crab.
title_full_unstemmed Dancing for food in the deep sea: bacterial farming by a new species of Yeti crab.
title_short Dancing for food in the deep sea: bacterial farming by a new species of Yeti crab.
title_sort dancing for food in the deep sea bacterial farming by a new species of yeti crab
url https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/22140426/?tool=EBI
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