Light and photoacclimatization drive distinct differences between shallow and mesophotic coral communities
Light and photoacclimatization drive distinct differences between shallow and mesophotic coral communities
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光和光适应导致浅层和中光珊瑚群落之间的明显差异
DOI：
10.1002/ecs2.4200
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发表时间：
2022
期刊：
影响因子：
2.7
通讯作者：
Goodbody‐Gringley, Gretchen
中科院分区：
文献类型：
--
作者：
Carpenter, Gaby E.;Chequer, Alex D.;Weber, Sabrina;Mass, Tali;Goodbody‐Gringley, Gretchen
从浅海珊瑚礁到中光珊瑚礁的珊瑚物种的生态分布取决于光，而光在当地环境中差异很大。目前中光珊瑚生态系统的定义主要依靠 30 米的休闲水肺边界来定义群落的上限；然而，这个界限没有考虑当地条件和珊瑚物种的生理适应。利用原位底栖图像和叶绿素荧光测量，我们检查了小开曼岛浅层至中光礁区的物种分布和群落相似性，以及两种常见深度通才物种（Montastraea Cavernosa和Porites astreoides）的光适应情况。 Photoquadrat 图像分析显示，25 米至 35 米之间的珊瑚物种组合发生了显着变化，同时可用表面光下降了 30%，这表明光是珊瑚群落组成的关键驱动因素。两种珊瑚物种之间的不同深度的光适应模式存在显着差异，发现可用的表面光和光系统 II 中光化学的量子产率是每个物种丰度的重要决定因素。这些结果为小开曼岛广泛深度梯度上的珊瑚群落组成提供了宝贵的基线数据，这有助于提供越来越多的证据，以根据深度通才物种的光可用性和光适应潜力来设定中光珊瑚礁的上限。
The ecological distribution of coral species from shallow to mesophotic reefs is dependent on light, which varies drastically among local environments. Current definitions of mesophotic coral ecosystems primarily rely on a 30‐m recreational SCUBA boundary to define the upper limits of the community; however, this boundary does not consider local conditions and physiological adaptions of coral species. Using in situ benthic imagery and chlorophyll fluorescence measurements, we examined species distribution and community similarity, as well as photoacclimatization of two common depth‐generalist species (Montastraea cavernosaandPorites astreoides) across shallow to mesophotic reef zones at Little Cayman Island. Photoquadrat image analysis revealed a significant shift in coral species assemblages between 25 and 35 m, which was accompanied by a 30% drop in available surface light, suggesting light is a key driver of coral community composition. Patterns of photoacclimatization across depths differed significantly between the two coral species, with available surface light and the quantum yield of photochemistry in photosystem II found to be significant determinants of each species' abundance. These results provide valuable baseline data on coral community composition across a broad depth gradient in Little Cayman that can contribute to a growing body of evidence to set an upper boundary of mesophotic reefs based on light availability and photoacclimatization potential of depth‐generalist species.
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影响因子：
2.5
作者：
T. Mass;S. Einbinder;E. Brokovich;N. Shashar;R. Vago;J. Erez;Z. Dubinsky
通讯作者：
T. Mass;S. Einbinder;E. Brokovich;N. Shashar;R. Vago;J. Erez;Z. Dubinsky
伯利兹珊瑚礁共生甲藻的生态分布和比较光生物学：对珊瑚白化的潜在影响
DOI：
--
发表时间：
2006
期刊：
影响因子：
--
作者：
M. Warner;T. Lajeunesse;Jennifer D. Robison;Rebecca M. Thur
通讯作者：
Rebecca M. Thur
影响因子：
3.7
作者：
Manfrino C;Jacoby CA;Camp E;Frazer TK
通讯作者：
Frazer TK
影响因子：
2.5
作者：
Einbinder, Shai;Mass, Tali;Tchernov, Dan
通讯作者：
Tchernov, Dan
辐照度和珊瑚
DOI：
--
发表时间：
1990
期刊：
影响因子：
--
作者：
P. Falkowski;P. Jokiel;R. Kinzie
通讯作者：
R. Kinzie