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The effects of temperature and pressure acclimation on the temperature and pressure tolerance of the shallow-water shrimp Palaemonetes varians

The effects of temperature and pressure acclimation on the temperature and pressure tolerance of the shallow-water shrimp Palaemonetes varians
The effects of temperature and pressure acclimation on the temperature and pressure tolerance of the shallow-water shrimp Palaemonetes varians
Anthropogenic effects on marine ecosystems (e.g. hypoxia, warming) at and beyond continental margins are assumed to affect physiological and biochemical boundaries to species’ distributions, potentially leading to habitat contraction across depth. Whether or not shallow-water benthic invertebrates are capable of undergoing depth related migrations in response to such perturbations remains largely unknown. The few studies available have focused solely on whether colonisation of deep waters may be ongoing and on the ability of shallow-water species to tolerate low temperatures and high hydrostatic pressures: two physical parameters, which are thought to limit the depth range of a species. Those studies did not consider the effects of acclimation to low temperature and, especially, acclimation to high hydrostatic pressure on pressure tolerance. We demonstrate that acclimation to both low temperature (5 °C) and to high hydrostatic pressure (10 MPa) increase the pressure tolerance within the shallow-water shrimp Palaemonetes varians. Previous studies have demonstrated the impressive temperature and pressure tolerance of this shallow-water shrimp. Here, we provide evidence that a shallow-water species may acclimate to low temperature and high pressure and show greater pressure tolerance, suggesting that shallow-water organisms may be able to rapidly - and potentially stepwise - acclimate to the low temperature and high pressure conditions typical of the deep sea. These findings are of importance for understanding phylogenetic development from shallow- to deep-water species and the processes behind past, present, and future bathymetric range shifts in species.
0025-3162
697-709
New, P.
07b007e6-f054-4781-816b-a47972166006
Brown, Alastair
909f34db-bc9c-403f-ba8f-31aee1c00161
Oliphant, A.
12f0f0af-41bc-470c-bb59-e9d70192c5f7
Burchell, P.
2c5eeb3a-66dd-4e9b-8c76-4d967187fccc
Smith, A.
f115f8cb-6c76-444b-ba80-7a1d54276da8
Thatje, S.
f1011fe3-1048-40c0-97c1-e93b796e6533
New, P.
07b007e6-f054-4781-816b-a47972166006
Brown, Alastair
909f34db-bc9c-403f-ba8f-31aee1c00161
Oliphant, A.
12f0f0af-41bc-470c-bb59-e9d70192c5f7
Burchell, P.
2c5eeb3a-66dd-4e9b-8c76-4d967187fccc
Smith, A.
f115f8cb-6c76-444b-ba80-7a1d54276da8
Thatje, S.
f1011fe3-1048-40c0-97c1-e93b796e6533

New, P., Brown, Alastair, Oliphant, A., Burchell, P., Smith, A. and Thatje, S. (2014) The effects of temperature and pressure acclimation on the temperature and pressure tolerance of the shallow-water shrimp Palaemonetes varians. Marine Biology, 161, 697-709. (doi:10.1007/s00227-013-2371-9).

Record type: Article

Abstract

Anthropogenic effects on marine ecosystems (e.g. hypoxia, warming) at and beyond continental margins are assumed to affect physiological and biochemical boundaries to species’ distributions, potentially leading to habitat contraction across depth. Whether or not shallow-water benthic invertebrates are capable of undergoing depth related migrations in response to such perturbations remains largely unknown. The few studies available have focused solely on whether colonisation of deep waters may be ongoing and on the ability of shallow-water species to tolerate low temperatures and high hydrostatic pressures: two physical parameters, which are thought to limit the depth range of a species. Those studies did not consider the effects of acclimation to low temperature and, especially, acclimation to high hydrostatic pressure on pressure tolerance. We demonstrate that acclimation to both low temperature (5 °C) and to high hydrostatic pressure (10 MPa) increase the pressure tolerance within the shallow-water shrimp Palaemonetes varians. Previous studies have demonstrated the impressive temperature and pressure tolerance of this shallow-water shrimp. Here, we provide evidence that a shallow-water species may acclimate to low temperature and high pressure and show greater pressure tolerance, suggesting that shallow-water organisms may be able to rapidly - and potentially stepwise - acclimate to the low temperature and high pressure conditions typical of the deep sea. These findings are of importance for understanding phylogenetic development from shallow- to deep-water species and the processes behind past, present, and future bathymetric range shifts in species.

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Published date: 2014
Organisations: Ocean Biochemistry & Ecosystems, Southampton Marine & Maritime Institute

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Local EPrints ID: 360363
URI: http://eprints.soton.ac.uk/id/eprint/360363
ISSN: 0025-3162
PURE UUID: 9189445d-aceb-49b8-848e-276102185571

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Date deposited: 05 Dec 2013 17:17
Last modified: 19 Jul 2019 21:21

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