论文部分内容阅读
根据国外最新文献,综述了富营养化对珊瑚礁生态系统影响的研究进展情况,这些进展主要包括:(1)对珊瑚生长及其共生虫黄藻的影响(如对珊瑚钙化作用、组织生长、虫黄藻的密度及其光合作用等的影响);(2)对珊瑚繁殖和补充的影响(包括对珊瑚的生育、受精、胚胎和幼虫的发展及其幼虫的附着等的影响);(3)对珊瑚疾病的影响(如对白化现象、疾病的易感性和病菌的适应性等的影响);(4)对珊瑚礁生态系统群落结构演替的影响(如刺激造礁藻的生长或者促进珊瑚礁不常见的营养性藻类变成优势种)。同时指出了一些该领域未来研究的重点,包括(1)珊瑚共生系对富营养化的长期性响应机制;(2)结合同位素技术和叶绿素荧光技术研究外部富营养化对珊瑚共生系碳、氮循环的影响;(3)富营养化对珊瑚繁殖和补充不同阶段的影响机制;(4)加强珊瑚病毒细菌的种类、结构研究,从基因这个微观的角度来研究富营养化对珊瑚疾病的影响机制;(5)富营养化与草食动物对珊瑚礁群落结构产生的耦合效应研究;(6)指示珊瑚礁生态系统富营养化的生物化学指标研究等。
According to the latest literature abroad, the progress of research on the effects of eutrophication on coral reef ecosystems are reviewed. These advances include: (1) the effects on coral growth and its symbiont zooxanthellae (such as coral calcification, tissue growth, The density of xanthophylls and their photosynthesis, etc.); (2) the effects on coral reproduction and replenishment (including effects on coral fertility, fertilization, development of embryos and larvae and their larval attachment); (3) (Eg albinism, disease susceptibility and pathogen suitability); (4) the impact on the succession of coral reef ecosystem structure (eg stimulating the growth of reef algae or promoting coral reefs The common nutrient algae become the dominant species). At the same time, some key points of future research in this field are pointed out, including (1) the long-term response mechanism of coral symbionts to eutrophication; (2) the combination of isotope techniques and chlorophyll fluorescence techniques to study the influence of external eutrophication on coral symbiotic carbon and nitrogen (3) the mechanism of eutrophication on the different stages of coral reproduction and replenishment; (4) the study on the species and structure of coral virus bacteria and the impact of eutrophication on coral diseases from the microscopic point of view of genes Mechanisms; (5) Coupling effects of eutrophication and herbivores on the structure of coral reef communities; (6) Biochemical indicators that indicate eutrophication of coral reef ecosystems.