Temperature Stress and Coral Bleaching

Temperature Stress and Coral Bleaching
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温度压力和珊瑚白化

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发表时间:
2004
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通讯作者:
P. Jokiel
P. Jokiel
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作者:
P. Jokiel

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珊瑚礁是由动物伴侣和通常被称为虫黄藻的甲藻组成的共生体。这种微妙的结合只在热带浅海非常狭窄的环境条件范围内发挥作用(Wells 1957)。共生被认为是应对热带海洋水域极低浓度营养物质的一种手段(Muscatine和Porter 1977)。这种联系对双方都有好处。虫黄藻是珊瑚的初级生产者,为珊瑚宿主提供满足其能量需求至关重要的光合作用产物。作为回报,虫黄藻以废物代谢产物的形式从宿主那里获得生存空间和营养物质。共生体内的紧密循环有助于在珊瑚中观察到高生产力和钙化率(Falkowski等人。1984年)。
Reef corals are symbioses that consist of an animal partner and dinoflagellate algae commonly known as zooxanthellae. This delicate association functions only within a very narrow range of environmental conditions in shallow tropical seas (Wells 1957). The symbiosis is thought to have developed as a means of coping with very low concentrations of nutrients in tropical marine waters (Muscatine and Porter 1977). This association provides benefits to both partners. The zooxanthellae are primary producers and supply their coral hosts with photosynthetic products vital to meeting their energetic requirements. In return, the zooxanthellae receive living space and nutrients in the form of waste metabolic products from the host. The tight cycling within the symbioses facilitates the high productivity and calcification rates observed in corals (Falkowski et al. 1984).