| dbo:abstract |
Rhodoliths (from Greek for red rocks) are colorful, unattached calcareous nodules, composed of crustose, benthic marine red algae that resemble coral. Rhodolith beds create biogenic habitat for diverse benthic communities. The rhodolithic growth habit has been attained by a number of unrelated coralline red algae, organisms that deposit calcium carbonate within their cell walls to form hard structures or nodules that resemble beds of coral. Rhodoliths do not attach themselves to the rocky seabed. Rather, they roll like tumbleweeds along the seafloor until they become too large in size to be mobilised by the prevailing wave and current regime. They may then become incorporated into a semi-continuous algal mat or form an algal build-up. While corals are animals that are both autotrophic (photosynthesize via their symbionts) or heterotrophic (feeding on plankton), rhodoliths produce energy solely through photosynthesis (i.e. they can only grow and survive in the photic zone of the ocean). Scientists believe rhodoliths have been present in the world's oceans since at least the Eocene epoch, some 55 million years ago. (en) 藻礁是由藻類形成的礁岩或石塊。生長在海洋或淡水湖泊的大型底棲藻類死亡後鈣化的藻體遺骸，經過長時間與週遭表層無脊椎動物粘結或膠合，加上礦化作用所形成富含碳酸鈣的生物礁體，稱為藻礁。 目前發現的藻礁主要組成藻種有紅藻門的無節珊瑚藻（non-geniculate Coralline algae，例如臺灣的桃園藻礁。）及綠藻門的仙掌藻（Halimeda spp.，例如大堡礁和加勒比海的環礁部份組成。）。 (zh) |
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https://books.google.com/books%3Fid=9ec4DQAAQBAJ&printsec=frontcover&dq=%22Rhodolith/Ma%C3%ABrl+Beds:+A+Global+Perspective%22&hl=en&sa=X&ved=2ahUKEwjWse_8sf3qAhU8zzgGHWiACcEQ6AEwAHoECAQQAg%23v=onepage&q=%22Rhodolith%2FMa%C3%ABrl%20Beds%3A%20A%20Global%20Perspective%22&f=false |
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| rdfs:comment |
藻礁是由藻類形成的礁岩或石塊。生長在海洋或淡水湖泊的大型底棲藻類死亡後鈣化的藻體遺骸，經過長時間與週遭表層無脊椎動物粘結或膠合，加上礦化作用所形成富含碳酸鈣的生物礁體，稱為藻礁。 目前發現的藻礁主要組成藻種有紅藻門的無節珊瑚藻（non-geniculate Coralline algae，例如臺灣的桃園藻礁。）及綠藻門的仙掌藻（Halimeda spp.，例如大堡礁和加勒比海的環礁部份組成。）。 (zh) Rhodoliths (from Greek for red rocks) are colorful, unattached calcareous nodules, composed of crustose, benthic marine red algae that resemble coral. Rhodolith beds create biogenic habitat for diverse benthic communities. The rhodolithic growth habit has been attained by a number of unrelated coralline red algae, organisms that deposit calcium carbonate within their cell walls to form hard structures or nodules that resemble beds of coral. Scientists believe rhodoliths have been present in the world's oceans since at least the Eocene epoch, some 55 million years ago. (en) |
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Rhodolith (en) 藻礁 (zh) |
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