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Long-term environmental tolerance of the non-indigenous Pacific oyster to expected contemporary climate change conditions

Long-term environmental tolerance of the non-indigenous Pacific oyster to expected contemporary climate change conditions
Long-term environmental tolerance of the non-indigenous Pacific oyster to expected contemporary climate change conditions
The current global redistribution of biota is often attributed to two main drivers: contemporary climate change (CCC) and non-indigenous species (NIS). Despite evidence of synergetic effects, however, studies assessing long-term effects of CCC conditions on NIS fitness remain rare. We examined the interactive effects of warming, ocean acidification and reduced salinity on the globally distributed marine NIS Magallana gigas (Pacific oyster) over a ten-month period. Growth, clearance and oxygen consumption rates were measured monthly to assess individual fitness. Lower salinity had a significant, permanent effect on M. gigas, reducing and increasing clearance and oxygen consumption rates, respectively. Neither predicted increases in seawater temperature nor reduced pH had a long-term physiological effect, indicating conditions predicted for 2100 will not affect adult physiology and survival. These results suggest that M. gigas will remain a globally successful NIS and predicted CCC will continue to facilitate their competitive dominance in the near future.
Climate change, Invasive species, Magallana gigas, Mesocosm, Multiple stresses, Seasonality
0141-1136
Pack, Kathryn E.
00558f1f-b79a-421e-8b18-c69524396c61
Rius, Marc
c4e88345-4b4e-4428-b4b2-37229155f68d
Mieszkowska, Nova
0024e8e8-9da9-49c5-ab13-31cd672cddc5
Pack, Kathryn E.
00558f1f-b79a-421e-8b18-c69524396c61
Rius, Marc
c4e88345-4b4e-4428-b4b2-37229155f68d
Mieszkowska, Nova
0024e8e8-9da9-49c5-ab13-31cd672cddc5

Pack, Kathryn E., Rius, Marc and Mieszkowska, Nova (2021) Long-term environmental tolerance of the non-indigenous Pacific oyster to expected contemporary climate change conditions. Marine Environmental Research, 164, [105226]. (doi:10.1016/j.marenvres.2020.105226).

Record type: Article

Abstract

The current global redistribution of biota is often attributed to two main drivers: contemporary climate change (CCC) and non-indigenous species (NIS). Despite evidence of synergetic effects, however, studies assessing long-term effects of CCC conditions on NIS fitness remain rare. We examined the interactive effects of warming, ocean acidification and reduced salinity on the globally distributed marine NIS Magallana gigas (Pacific oyster) over a ten-month period. Growth, clearance and oxygen consumption rates were measured monthly to assess individual fitness. Lower salinity had a significant, permanent effect on M. gigas, reducing and increasing clearance and oxygen consumption rates, respectively. Neither predicted increases in seawater temperature nor reduced pH had a long-term physiological effect, indicating conditions predicted for 2100 will not affect adult physiology and survival. These results suggest that M. gigas will remain a globally successful NIS and predicted CCC will continue to facilitate their competitive dominance in the near future.

Text
PACK_Long_term_tolerance_NIS_MER_final - Accepted Manuscript
Restricted to Repository staff only until 11 December 2021.
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More information

Accepted/In Press date: 28 November 2020
e-pub ahead of print date: 1 December 2020
Published date: 1 February 2021
Additional Information: Funding Information: We would like to thank the volunteers and interns who helped with the day-to-day maintenance of the mesocosm system, specifically Katherine McGregor and Michael Cooper for their help and enthusiasm, and Kevin Atkins for his technical support. We would also like to thank James Robbins for proof reading drafts of this paper. This work was supported by the Natural Environmental Research Council , United Kingdom [grant number NE/L002531/1 ]. Publisher Copyright: © 2020 Copyright: Copyright 2021 Elsevier B.V., All rights reserved.
Keywords: Climate change, Invasive species, Magallana gigas, Mesocosm, Multiple stresses, Seasonality

Identifiers

Local EPrints ID: 446938
URI: http://eprints.soton.ac.uk/id/eprint/446938
ISSN: 0141-1136
PURE UUID: 83c8c640-12ea-4846-bd11-0b0059eda715

Catalogue record

Date deposited: 26 Feb 2021 17:33
Last modified: 26 Nov 2021 00:03

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Contributors

Author: Kathryn E. Pack
Author: Marc Rius
Author: Nova Mieszkowska

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