Tavakoli-Kolour Parviz, Sinniger Frederic, Morita Masaya, Hazraty-Kari Sanaz, Nakamura Takashi, Harii Saki
Sesoko Station, Tropical Biosphere Research Center, University of the Ryukyus, Okinawa, Japan.
Sesoko Station, Tropical Biosphere Research Center, University of the Ryukyus, Okinawa, Japan.
Mar Pollut Bull. 2023 Dec;197:115792. doi: 10.1016/j.marpolbul.2023.115792. Epub 2023 Nov 18.
Global warming harms coral reefs. Mesophotic coral reef ecosystems (MCEs) have been suggested to serve as refugia for shallow reefs. Information on the adaptation potential of shallow corals at MCEs is a prerequisite for understanding the refuge potential of MCEs. In this study, we investigated the photoacclimation potential of four shallow coral species transplanted at different depths over 1 year. The results showed that the corals-Pocillopora damicornis, Porites cylindrica, and Turbinaria reniformis-survived and acclimated to a wide range of light regimes at the depths of 5, 20, and 40 m. However, Acropora tenuis survived only at 5 and 20 m depth and showed significant morphological alteration at 20 m depth. Our results indicate that shallow corals have substantial plasticity with respect to depth changes. Changes in photosynthetic performance and phenotypic plasticity within these coral species may act as a buffer for depth-related changes and as modulators of evolutionary responses.
全球变暖对珊瑚礁造成危害。中光层珊瑚礁生态系统（MCEs）被认为可作为浅海珊瑚礁的避难所。了解MCEs中浅海珊瑚的适应潜力是理解MCEs避难潜力的前提条件。在本研究中，我们调查了4种浅海珊瑚物种在不同深度移植1年后的光适应潜力。结果表明，鹿角杯形珊瑚、柱孔珊瑚和肾形涡轮珊瑚在5米、20米和40米深度能够存活并适应广泛的光照条件。然而，细枝鹿角珊瑚仅在5米和20米深度存活，且在20米深度出现了显著的形态变化。我们的结果表明，浅海珊瑚在深度变化方面具有很大的可塑性。这些珊瑚物种光合作用性能的变化和表型可塑性可能作为与深度相关变化的缓冲以及进化反应的调节因素。
