Effects of ocean acidification over successive generations decrease resilience of larval European sea bass to ocean acidification and warming but juveniles could benefit from higher temperatures in the NE Atlantic
| Type | Article | ||||||||||||
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| Date | 2022-05 | ||||||||||||
| Language | English | ||||||||||||
| Author(s) | Howald Sarah 1, 2, Moyano Marta2, 3, Crespel Amélie4, Kuchenmüller Luis L.1, Cominassi Louise2, 5, Claireaux Guy4, 6, Peck Myron A.2, 7, Mark Felix C.1 |
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| Affiliation(s) | 1 : Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Integrative Ecophysiology, Bremerhaven, Germany 2 : Institute of Marine Ecosystem and Fisheries Science, Center for Earth System Research and Sustainability (CEN), University of Hamburg, Germany 3 : Center for Coastal Research, University of Agder, Postbox 422, 4604 Kristiansand, Norway 4 : Ifremer, LEMAR (UMR 6539), Laboratory of Adaptation, and Nutrition of Fish, Centre Ifremer de Bretagne, Plouzané, France 5 : Institute of Arctic Biology, University of Alaska, Fairbanks, PO Box 757000, Fairbanks, AK 99775, USA 6 : Université de Bretagne Occidentale, LEMAR (UMR 6539), Brest, France 7 : Coastal Systems (COS), Royal Netherlands Institute for Sea Research (NIOZ), Netherlands |
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| Source | Journal Of Experimental Biology (0022-0949) (The Company of Biologists), 2022-05 , Vol. 225 , N. 9 , P. jeb243802. (16p.) | ||||||||||||
| DOI | 10.1242/jeb.243802 | ||||||||||||
| WOS© Times Cited | 1 | ||||||||||||
| Keyword(s) | Dicentrarchus labrax, Performance, Multi-stressor effects, Metabolic rate, Larval growth, Juvenile growth, Teleost | ||||||||||||
| Abstract | European sea bass (Dicentrarchus labrax) is a large, economically important fish species with a long generation time whose long-term resilience to ocean acidification (OA) and warming (OW) is not clear. We incubated sea bass from Brittany (France) for two generations (>5 years in total) under ambient and predicted OA conditions (PCO2: 650 and 1700 µatm) crossed with ambient and predicted ocean OW conditions in F1 (temperature: 15-18°C and 20-23°C) to investigate the effects of climate change on larval and juvenile growth and metabolic rate. We found that in F1, OA as single stressor at ambient temperature did not affect larval or juvenile growth and OW increased developmental time and growth rates, but OAW decreased larval size at metamorphosis. Larval routine and juvenile standard metabolic rates were significantly lower in cold compared to warm conditioned fish and also lower in F0 compared to F1 fish. We did not find any effect of OA as a single stressor on metabolic rates. Juvenile PO2crit was not affected by OA or OAW in both generations. We discuss the potential underlying mechanisms resulting in the resilience of F0 and F1 larvae and juveniles to OA and in the beneficial effects of OW on F1 larval growth and metabolic rate, but on the other hand in the vulnerability of F1, but not F0 larvae to OAW. With regard to the ecological perspective, we conclude that recruitment of larvae and early juveniles to nursery areas might decrease under OAW conditions but individuals reaching juvenile phase might benefit from increased performance at higher temperatures. |
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