https://scholars.lib.ntu.edu.tw/handle/123456789/385802
標題: | Can resistant coral-Symbiodinium associations enable coral communities to survive climate change? A study of a site exposed to long-termhot water input | 作者: | Keshavmurthy, S. Meng, P.-J. Wang, J.-T. Kuo, C.-Y. Yang, S.-Y. Hsu, C.-M. Gan, C.-H. CHANG-FENG DAI Chen, C.A. |
關鍵字: | Acclimatization; Climate change; Coral reefs; Nuclear power plant; Symbiodinium type D1a | 公開日期: | 2014 | 卷: | 2014 | 期: | 1 | 來源出版物: | PeerJ | 摘要: | Climate change has led to a decline in the health of corals and coral reefs around the world. Studies have shown that, while some corals can cope with natural and anthropogenic stressors either through resistance mechanisms of coral hosts or through sustainable relationships with Symbiodinium clades or types, many coral species cannot. Here, we show that the corals present in a reef in southern Taiwan, and exposed to long-term elevated seawater temperatures due to the presence of a nuclear power plant outlet (NPP OL), are unique in terms of species and associated Symbiodinium types. At shallow depths (<3 m), eleven coral genera elsewhere in Kenting predominantly found with Symbiodinium types C1 and C3 (stress sensitive) were instead hosting Symbiodinium type D1a (stress tolerant) or a mixture of Symbiodinium type C1/C3/C21a/C15 and Symbiodinium type D1a. Of the 16 coral genera that dominate the local reefs, two that are apparently unable to associate with Symbiodinium type D1a are not present at NPP OL at depths of <3 m. Two other genera present at NPP OL and other locations host a specific type of Symbiodinium type C15. These data imply that coral assemblages may have the capacity to maintain their presence at the generic level against long-termdisturbances such as elevated seawater temperatures by acclimatization through successful association with a stress-tolerant Symbiodinium over time. However, at the community level it comes at the cost of some coral genera being lost, suggesting that species unable to associate with a stresstolerant Symbiodinium are likely to become extinct locally and unfavorable shifts in coral communities are likely to occur under the impact of climate change. © 2014 Keshavmurthy et al. |
URI: | http://www.scopus.com/inward/record.url?eid=2-s2.0-84899093182&partnerID=MN8TOARS http://scholars.lib.ntu.edu.tw/handle/123456789/385802 |
DOI: | 10.7717/peerj.327 | SDG/關鍵字: | hot water; sea water; acclimatization; article; climate change; controlled study; coral reef; DNA extraction; environmental change; global positioning system; nonhuman; nuclear power plant; polymerase chain reaction; restriction fragment length polymorphism; species distribution; Symbiodinium; warming; water temperature |
顯示於: | 海洋研究所 |
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