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Thermal adaptations in deep-sea hydrothermal vent and shallow-water shrimp

Thermal adaptations in deep-sea hydrothermal vent and shallow-water shrimp
Thermal adaptations in deep-sea hydrothermal vent and shallow-water shrimp
The hydrothermal vent shrimp Mirocaris fortunata is commonly exposed to acute thermal gradients and rapid fluctuations in water temperature. The shallow-water shrimp Palaemonetes varians experiences less acute but similar magnitude fluctuations in its thermal regime. Acute respiratory response to temperature shock, and temperature preference was assessed for both species. Oxygen consumption rates were assessed across the natural temperature range reported for M. fortunata. Rates increased with temperature for both species. P. varians had a significantly higher rate of oxygen consumption than M. fortunata at all temperatures except 4°C. The rate of increase in oxygen consumption with increasing temperature was also significantly greater for P. varians. M. fortunata selected a significantly higher temperature than P. varians. Mirocaris fortunata maintains its metabolism at a more stable rate, which is likely an adaptation to acute changes in temperatures occurring at hydrothermal vents.
temperature adaptation, physiology, chemosynthetic environment, palaemonetes, mirocaris
0967-0645
234-239
Smith, Felix
cf46c155-fc53-49aa-9f0f-f7fd41743d59
Brown, Alastair
909f34db-bc9c-403f-ba8f-31aee1c00161
Mestre, Nelia C.
af51d167-71b2-41b5-b46c-8b1b785dfc8d
Reed, Adam J.
ec734ee2-469c-4259-91d6-4abcfbe65e3b
Thatje, Sven
f1011fe3-1048-40c0-97c1-e93b796e6533
Smith, Felix
cf46c155-fc53-49aa-9f0f-f7fd41743d59
Brown, Alastair
909f34db-bc9c-403f-ba8f-31aee1c00161
Mestre, Nelia C.
af51d167-71b2-41b5-b46c-8b1b785dfc8d
Reed, Adam J.
ec734ee2-469c-4259-91d6-4abcfbe65e3b
Thatje, Sven
f1011fe3-1048-40c0-97c1-e93b796e6533

Smith, Felix, Brown, Alastair, Mestre, Nelia C., Reed, Adam J. and Thatje, Sven (2013) Thermal adaptations in deep-sea hydrothermal vent and shallow-water shrimp. [in special issue: Deep-Sea Biodiversity and Life History Processes] Deep Sea Research Part II: Topical Studies in Oceanography, 92, 234-239. (doi:10.1016/j.dsr2.2012.12.003).

Record type: Article

Abstract

The hydrothermal vent shrimp Mirocaris fortunata is commonly exposed to acute thermal gradients and rapid fluctuations in water temperature. The shallow-water shrimp Palaemonetes varians experiences less acute but similar magnitude fluctuations in its thermal regime. Acute respiratory response to temperature shock, and temperature preference was assessed for both species. Oxygen consumption rates were assessed across the natural temperature range reported for M. fortunata. Rates increased with temperature for both species. P. varians had a significantly higher rate of oxygen consumption than M. fortunata at all temperatures except 4°C. The rate of increase in oxygen consumption with increasing temperature was also significantly greater for P. varians. M. fortunata selected a significantly higher temperature than P. varians. Mirocaris fortunata maintains its metabolism at a more stable rate, which is likely an adaptation to acute changes in temperatures occurring at hydrothermal vents.

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e-pub ahead of print date: 7 December 2012
Published date: August 2013
Keywords: temperature adaptation, physiology, chemosynthetic environment, palaemonetes, mirocaris
Organisations: Ocean and Earth Science, Ocean Biochemistry & Ecosystems

Identifiers

Local EPrints ID: 343604
URI: http://eprints.soton.ac.uk/id/eprint/343604
ISSN: 0967-0645
PURE UUID: ce77a522-fd28-4b18-865e-237eed60968c

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Date deposited: 09 Oct 2012 08:27
Last modified: 23 Sep 2019 18:55

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Contributors

Author: Felix Smith
Author: Alastair Brown
Author: Nelia C. Mestre
Author: Adam J. Reed
Author: Sven Thatje

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