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

Pack, KE, Rius, M and Mieszkowska, N 2021 Long-term environmental tolerance of the non-indigenous Pacific oyster to expected contemporary climate change conditions. Marine Environmental Research, 164, 105226. https://doi.org/10.1016/j.marenvres.2020.105226

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Abstract/Summary

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.

Item Type:	Publication - Article
Additional Keywords:	Climate change Invasive species Magallana gigas Mesocosm Multiple stresses Seasonality
Subjects:	Marine Sciences
Divisions:	Marine Biological Association of the UK > Ocean Biology
Depositing User:	Emily Smart
Date made live:	08 Oct 2021 14:50
Last Modified:	09 Feb 2024 16:50
URI:	https://plymsea.ac.uk/id/eprint/9416

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