Coral reefs – how they cope with global warming and ocean acidification


Contact
Claudio.Richter [ at ] awi.de

Abstract

Global warming and ocean acidification (OA) have increased over the last decades, affecting coral reefs in various ways. Temperature stress may disrupt the photosymbiosis between corals and their microalgal symbionts and lead to photoinhibition, bleaching and mortality of the corals. Decreases in pH and aragonite saturation may slow coral calcification and growth. Coral reefs may cope with global warming and OA both, on the organismal level, where adaptive bleaching may foster coral associations with heat-tolerant Symbiodinium clades, and on the ecosystem level, where coral communities may become dominated by less bleaching and OA-susceptible species. Here, I show that reef environments displaying high natural fluctuations in temperature and pH due to upwelling by internal waves are important refuges for corals in a changing world. Desert-enclosed shallow water reefs like the ones occuring in the Persian Gulf displaying large diurnal and seasonal variations in environmental conditions may harbour important preadaptations by corals to a changing climate.



Item Type
Conference (Invited talk)
Authors
Divisions
Primary Division
Programs
Primary Topic
Peer revision
Not peer-reviewed
Publication Status
Published
Event Details
Bilateral German-Iranian workshop on Response of coastal and pelagic marine ecosystems to environmental stressors in the Persian Gulf, 09 Jan 2017 - 12 Jan 2017, Kish Island, Iran.
Eprint ID
43421
Cite as
Richter, C. (2017): Coral reefs – how they cope with global warming and ocean acidification , Bilateral German-Iranian workshop on Response of coastal and pelagic marine ecosystems to environmental stressors in the Persian Gulf, Kish Island, Iran, 9 January 2017 - 12 January 2017 .


Share

Research Platforms
N/A

Campaigns


Actions
Edit Item Edit Item