Metabolic shifts involved in the response to ocean acidification and warming in fish


Contact
Felix.Christopher.Mark [ at ] awi.de

Abstract

Hand in hand with ocean warming, ocean acidification is increasingly threatening life in the world’s oceans. This has sparked a growing number of studies of the effects of ocean acidification and warming on water breathing, ectotherm marine animals throughout the last decade. Amongst those species, fish have generally been regarded as reasonably tolerant towards ocean acidification, due to their well-developed capacities for ion- and pH-regulation. As a result, there are only a handful of physiological studies on ocean acidification effects in fish, and only very few studies have dealt with metabolic regulation at the cellular level. Yet, increased costs of acid-base regulation and metabolic rearrangements may either entail adjustments of the animal’s energy budget, leading to reduced growth and fecundity, or a higher total aerobic energy demand for the whole animal, reducing aerobic scope. In this presentation, I will focus on the current knowledge of the effects of ocean acidification and warming on the cellular metabolism and molecular regulation in various ontogenetic stages of marine fish of different biogeographic origin. I shall try to indicate capacities and bottlenecks for acclimation and discuss the consequences and limitations for the whole animal level with regard to population resilience.



Item Type
Conference (Invited talk)
Authors
Divisions
Primary Division
Programs
Primary Topic
Peer revision
Not peer-reviewed
Publication Status
Published
Event Details
SEB Annual Main Meeting 2013, 03 Jul 2013 - 06 Jul 2013, Valencia, Spain.
Eprint ID
37873
Cite as
Mark, F. C. (2013): Metabolic shifts involved in the response to ocean acidification and warming in fish , SEB Annual Main Meeting 2013, Valencia, Spain, 3 July 2013 - 6 July 2013 .


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