| 单词 |
microbenthos |
| 释义 |
microbenthos, n. Zool.|ˈmaɪkrəʊˌbɛnθɒs|
[f. micro- + benthos n.]
The microfauna of the benthos; spec. bottom-dwelling marine organisms less than 0.1 mm long.
1942M. F. Mare in Jrnl. Marine Biol. Assoc. XXV. 519 A new terminology is needed, and these groups are here designated the macrobenthos, meiobenthos, and microbenthos. 1967Oceanogr. & Marine Biol. V. 501 According to Laubier, this endolithic fauna..includes not only several macrobenthonic species..but also an important animal microbenthos chiefly consisting of very small polychaetes..and harpacticoid copepods. 1988Nature 26 May 316/2 Biosedimentary structures attributable to the mat-building activities of prokaryotic microbenthos (‘stromatolites’).
Hence microˈbenthic a.
1974Biol. Abstr. LVIII. 1992/1 (title) Diet variation in oxygen production and uptake in a microbenthic littoral community of a nutrient-poor lake. 1975G. A. Cole Textbk. Limnol. iii. 44/1 The study of benthic forms has generally involved the use of sieves in separating organisms from the sediments... The macrobenthic forms are retained by the meshes of a sieve, while the microbenthic species pass through the interstices of a no. 40 screening device. |
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