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THE WATER COLUMN

机译:水柱

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The birch aquarium's Caribbean coral-reef display joins with the Indo-Pacific coral exhibit to create an entirely new visitor learning adventure. Classified in the Phylum Coelenterata (or Cnidaria), corals are closely related to jellies, anemones, and hydras. The round, cylindrical shaped bodies (polyps) of anemones and corals indicate their close relationship (Class Anthozoa). Unlike most anemones, coral polyps are small and often colonial, that is, connected to one another by a continuous sheet of living tissue. Reef-building "hard" or "stony" corals (Order Scleractinia) deposit a calcium carbonate skeleton beneath each polyp, thus forming a contiguous stony support throughout the colony, which is how reefs grow. Scleractinians have different growth forms; some spread (encrusting), others grow upright, and some branch. Tentacles surrounding the polyp's oral disk capture suspended material that is ingested. However, the major energy source for reef-building corals is derived from their symbiotic relationship with unicellular photosynthetic algae (zooxanthellae) living within cells lining the polyp.
机译:桦木水族馆的加勒比珊瑚礁展示与印度太平洋珊瑚展相结合,创造了一个全新的游客学习冒险之旅。珊瑚归类于Phylum Coelenterata(或Cnidaria)中,与果冻,海葵和九头蛇密切相关。海葵和珊瑚的圆形圆柱体(息肉)表明它们之间的亲密关系(Anthozoa类)。与大多数海葵不同,珊瑚息肉很小,通常是殖民地,也就是说,它们由连续的活体组织相互连接。造礁的“坚硬”或“坚硬”珊瑚(Scleractinia阶)在每个息肉下方沉积碳酸钙骨架,从而在整个菌落中形成连续的石质支撑,这就是珊瑚礁生长的方式。巩膜菌有不同的生长形式。有些蔓延(包裹),有些直立生长,有些分支。息肉口腔盘周围的触手捕获被摄入的悬浮物质。但是,造礁珊瑚的主要能源来自它们与生活在息肉内衬细胞内的单细胞光合藻类(共生黄藻)的共生关系。

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