Factors Determining the Resilience of Coral Reefs to Eutrophication: A Review and Conceptual Model
Factors Determining the Resilience of Coral Reefs to Eutrophication: A Review and Conceptual Model
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DOI：
10.1007/978-94-007-0114-4_28
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发表时间：
2011-01-01
期刊：
影响因子：
--
通讯作者：
Fabricius, Katharina E.
中科院分区：
文献类型：
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作者：
Fabricius, Katharina E.
富营养化和沉积物增加使世界各地许多沿海珊瑚礁严重退化。本章回顾了富营养化对珊瑚礁生态的主要影响，以及决定珊瑚礁暴露、抵抗力和恢复力的珊瑚礁特性，表明富营养化通过营养物富集、浑浊导致的光损失以及沉积导致的表面特性的窒息和改变来影响珊瑚礁。这些变化导致营养结构的变化，减少珊瑚的补充和多样性，珊瑚被大型藻类取代，以及更频繁地爆发吃珊瑚的棘冠海星。最容易因污染而退化的珊瑚礁和地区是较深的珊瑚礁斜坡、位于冲刷不良地点并被浅海底包围的珊瑚礁、经常受到干扰的珊瑚礁以及食草鱼类丰度低的珊瑚礁。本章最后提出了水质与近岸珊瑚礁状况之间主要联系的概念模型。
Eutrophication and increased sedimentation have severely degraded many coastal coral reefs around the world. This chapter reviews the main impacts of eutrophication on the ecology of coral reefs and the properties of reefs that determine their exposure, resistance, and resilience to it. It shows that eutrophication affects coral reefs by way of nutrient enrichment, light loss from turbidity, and the smothering and alteration of surface properties from sedimentation. These changes lead to changes in trophic structures, reduced coral recruitment and diversity, the replacement of corals by macroalgae, and more frequent outbreaks of coral-eating crown-of-thorns starfish. The reefs and areas most susceptible to degradation from pollution are deeper reef slopes, reefs located in poorly flushed locations and surrounded by a shallow sea floor, frequently disturbed reefs, and reefs with low abundances of herbivorous fishes. The chapter concludes with a conceptual model of the main links between water quality and the condition of inshore coral reefs.