| 单词 | algal mat |
| 释义 | > as lemmasalgal mat algal mat n. an assemblage of cyanobacteria (blue-green algae) or other photosynthetic microorganisms forming a dense flat mass, esp. on or within the surface layer of an aquatic sediment. ΚΠ 1915 Entomol. News 26 4 During the summer these forms oviposited mostly upon the weeds or algal mats out in the stream. 1961 G. K. Reid Ecol. Inland Waters & Estuaries xii. 236 Special habitats such as oyster reefs, mussel assemblages, and algal mats characteristically support proboscis worms as conspicuous members of the local communities. 1983 D. L. Baars Colorado Plateau i. 10 When the next layer of sediments is brought on the high tide and trapped and bound down by the algal mat, another lamina is produced. 2009 Sci. News 7 Nov. 24/1 (caption) The constant roiling of sediments prevents algal mats and sea grasses from becoming established. < as lemmas |
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