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首页> 外文期刊>Russian journal of marine biology >Coral-Algal Competition on Damaged Reefs
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Coral-Algal Competition on Damaged Reefs

机译：珊瑚-藻类在珊瑚礁上的竞争

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Natural and anthropogenic catastrophes occurred at the end of the previous and in the beginning of the current centuries at the coral reefs of the World Ocean, and their consequences for the tropical shelf ecosystems have been described based on published data and our own investigations. It has been shown that in recent decades coral populations on reefs of tropical and subtropical regions of the World Ocean have been reduced by 80%, and in some areas have completely vanished. The biodiversity of reef ecosystems has been considerably reduced. The main reason for such changes is a1-2℃ increase in the temperature of surface waters in comparison with the monthly mean temperature in the hot season. The fate of the damaged coral reefs is under discussion. It is thought that in clean waters partially damaged coral reefs can recover, whereas in waters polluted as the result of human activity they collapse. The rate of coral reef restoration depends on the hydrological and hydrochemical conditions, frequency of natural calamities and competitive interrelation of algae and corals on the damaged sites of coral reefs. The nature of competitive interrelation between algae and corals is considered, viz., the dynamics of obliteration of damaged and dead coral colonies by various algal species, mechanisms of competitive interrelation, effects of the environment on the competitive ability of corals and algae, the internal and external conditions for victory in competitive activity. It has been suggested that coral reefs can be restored through temporary transformation into a vegetable reef. In the absence of natural calamities damaged reefs can be clearly restored to their original or altered state over several decades, but only in clean waters.
机译：自然和人为的灾难在上个世纪末和本世纪初在世界海洋的珊瑚礁发生，根据公开的数据和我们自己的调查描述了它们对热带陆架生态系统的后果。研究表明，在最近几十年中，世界海洋热带和亚热带地区的珊瑚礁上的珊瑚种群减少了80％，在某些地区已经完全消失。珊瑚礁生态系统的生物多样性已大大减少。造成这种变化的主要原因是与炎热季节的月平均温度相比，地表水温度升高了1-2℃。受损珊瑚礁的命运正在讨论中。人们认为，在干净的水中，部分受损的珊瑚礁可以恢复，而在由于人类活动而受到污染的水中，它们会倒塌。珊瑚礁的恢复速度取决于水文和水化学条件，自然灾害的发生频率以及藻类和珊瑚在珊瑚礁受损地点的竞争性相互关系。藻类和珊瑚之间竞争性相互关系的性质被认为是，各种藻类物种消除受损和死去的珊瑚群落的动力学，竞争性相互关系的机制，环境对珊瑚和藻类竞争能力的影响，内部以及赢得竞争活动的外部条件。已经提出，可以通过暂时转变为菜礁来恢复珊瑚礁。在没有自然灾害的情况下，受损的珊瑚礁可以在几十年内清晰地恢复到原始状态或变化状态，但只能在干净的水中进行。

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