Impacts of ocean warming and acidification on the energy budget of three commercially important fish species

• Published in: Conservation Physiology
• Main Authors: Moreira, José M., Mendes, Ana Candeias, Maulvault, Ana Luísa, Marques, António, Rosa, Rui, Pousão-Ferreira, Pedro, Sousa, Tânia, Anacleto, Patrícia, Marques, Gonçalo M.
• Other Authors: DQ - Departamento de Química, UCIBIO - Applied Molecular Biosciences Unit
• Format: Article in Journal/Newspaper
• Language: English
• Published: 2022
• Subjects: climate change; Dynamic Energy Budget; fish metabolism; ocean acidification; ocean warming; Physiology; Ecological Modelling; Nature and Landscape Conservation; Management; Monitoring; Policy and Law; SDG 13 - Climate Action; SDG 14 - Life Below Water; Bia; Ocean acidification
• Online Access: http://hdl.handle.net/10362/150285; https://doi.org/10.1093/conphys/coac048

Funding This study was supported by the project FISHBUDGET -Effects of climate change on marine fish energy budgets (PTDC/BIA-BMA/28630/2017) from the Portuguese Foundation for Science and Technology (FCT). FCT also supported the contract of Patrícia Anacleto in the framework of the CEECIND 2017 (CEECIND/01739/2017). Acknowledgments This study benefited from the strategic project UIDB/04292/2020 awarded to MARE and through project LA/P/0069/2020 granted to the Associate Laboratory ARNET funded by the FCT/Ministério da Ciência, Tecnologia e Ensino Superior (MCTES), and through other national funds (UIDB/50006/2020). The authors thank the Sparos, Lda company for providing the fish feed, and Olhão Pilot Fish Farming Station team (EPPO-IPMA) for providing the juvenile fish for trials. Publisher Copyright: © 2022 The Author(s). Published by Oxford University Press and the Society for Experimental Biology. A mechanistic model based on Dynamic Energy Budget (DEB) theory was developed to predict the combined effects of ocean warming, acidification and decreased food availability on growth and reproduction of three commercially important marine fish species: white seabream (Diplodus sargus), zebra seabream (Diplodus cervinus) and Senegalese sole (Solea senegalensis). Model simulations used a parameter set for each species, estimated by the Add-my-Pet method using data from laboratory experiments complemented with bibliographic sources. An acidification stress factor was added as a modifier of the somatic maintenance costs and estimated for each species to quantify the effect of a decrease in pH from 8.0 to 7.4 (white seabream) or 7.7 (zebra seabream and Senegalese sole). The model was used to project total length of individuals along their usual lifespan and number of eggs produced by an adult individual within one year, under different climate change scenarios for the end of the 21st century. For the Intergovernmental Panel on Climate Change SSP5-8.5, ocean warming led to higher growth rates during the first years of ...