Unravelling warming sensitivity across fish coastal life-cycle stages: from cellular biology to ecological patterns

Abstract

Event Abstract Back to Event Unravelling warming sensitivity across fish coastal life-cycle stages: from cellular biology to ecological patterns Diana S. Madeira1, 2*, Carolina Madeira3, Pedro M. Costa4, Catarina Vinagre3, Hans Poertner5 and Mário S. Diniz2 1 University of Aveiro, Biology, Portugal 2 Universidade Nova de Lisboa, Chemistry, Portugal 3 Universidade de Lisboa, MARE, Portugal 4 Universidade Nova de Lisboa, Life Sciences, Portugal 5 Alfred Wegener Institut Helmholtz Zentrum für Polar und Meeresforschung, Germany Accurate projections of global change impacts on biota are hampered due to the lack of eco-physiological data for the key life stages of a species. Here we experimentally tested the vulnerability of a demersal predatory fish (Sparus aurata) to ocean warming, focusing on larval, juvenile and adult life-stages that inhabit shallow coastal waters. We combined a set of organism level indicators (mortality; condition index) with cellular stress response end-points (hsp70, ubiquitin, antioxidant enzymes, lipid peroxidation and histopathology evaluation). The vulnerability of life cycle stages, defined by tissue damage and mortality can be ranked as larvae>adults >juveniles. Larvae were very sensitive to warming, showing reduced acclimation capacity that resulted in damage to muscle and kidneys and elevated mortality rates. Juvenile fish were the most resistant, inducing cyto-protective proteins that maintained the integrity of vital organs. Adults were sensitive to warming, showing greater tissue harm in vital organs (protein damage, inflammation) suggesting low plasticity. The effort to protect against thermal challenge differed between organs depending on developmental stage. The larval phase is a key developmental stage that will determine life cycle closure of demersal sea breams under projected ocean warming scenarios. Life-cycle assessments are crucial to understand global change impacts on biodiversity and improve conservation strategies. Acknowledgements MARESA, Fundação para a Ciência e a Tecnologia (FCT) [individual grants: senior researcher position to C.V. and P.M.C., SFRH/BD/80613/2011 to D.M.; SFRH/BPD/117491/2016 to D.M., SFRH/BD/92975/2013 to CM; project grants PTDC/MAR/119068/2010 and PTDC/AAG-REC/2139/2012], UCIBIO [FCT/MEC UID/Multi/04378/2013] and [POCI-01-0145-FEDER-00], MARE [FCT/MEC UID/MAR/04292/20], CESAM [FCT/MEC UID/AMB/50017/2013]. Keywords: temperature, phenotypic plasticity, Life-cycle, biomarkers, Climate Change, comparative physiology Conference: IMMR'18 | International Meeting on Marine Research 2018, Peniche, Portugal, 5 Jul - 6 Jul, 2018. Presentation Type: Poster Presentation Topic: Biodiversity, Conservation and Coastal Management Citation: Madeira DS, Madeira C, Costa PM, Vinagre C, Poertner H and Diniz MS (2019). Unravelling warming sensitivity across fish coastal life-cycle stages: from cellular biology to ecological patterns. Front. Mar. Sci. Conference Abstract: IMMR'18 | International Meeting on Marine Research 2018. doi: 10.3389/conf.FMARS.2018.06.00055 Copyright: The abstracts in this collection have not been subject to any Frontiers peer review or checks, and are not endorsed by Frontiers. They are made available through the Frontiers publishing platform as a service to conference organizers and presenters. The copyright in the individual abstracts is owned by the author of each abstract or his/her employer unless otherwise stated. Each abstract, as well as the collection of abstracts, are published under a Creative Commons CC-BY 4.0 (attribution) licence (https://creativecommons.org/licenses/by/4.0/) and may thus be reproduced, translated, adapted and be the subject of derivative works provided the authors and Frontiers are attributed. For Frontiers’ terms and conditions please see https://www.frontiersin.org/legal/terms-and-conditions. Received: 30 May 2018; Published Online: 07 Jan 2019. * Correspondence: Dr. Diana S Madeira, University of Aveiro, Biology, Aveiro, Portugal, 3830-565, Portugal, dianabmar@gmail.com Login Required This action requires you to be registered with Frontiers and logged in. To register or login click here. Abstract Info Abstract The Authors in Frontiers Diana S Madeira Carolina Madeira Pedro M Costa Catarina Vinagre Hans Poertner Mário S Diniz Google Diana S Madeira Carolina Madeira Pedro M Costa Catarina Vinagre Hans Poertner Mário S Diniz Google Scholar Diana S Madeira Carolina Madeira Pedro M Costa Catarina Vinagre Hans Poertner Mário S Diniz PubMed Diana S Madeira Carolina Madeira Pedro M Costa Catarina Vinagre Hans Poertner Mário S Diniz Related Article in Frontiers Google Scholar PubMed Abstract Close Back to top Javascript is disabled. Please enable Javascript in your browser settings in order to see all the content on this page.