| 释义 |
macrobenthos n.|mækrəʊˈbɛnθɒs|
[f. macro- + benthos n.]
The macrofauna of the benthos; spec. the organisms at or near the sea floor or a lake bed with a length of at least 1 mm.
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. 1973Nature 30 Mar. 324/1 Meiobenthos has a much wider dissemination than macrobenthos within the sediments. 1985Oceanogr. & Marine Biol. XXIII. 586 The high productivity..resulted chiefly from the very high densities of meiofauna and..typical estuarine macrobenthos was restricted in both variety and density.
Hence macroˈbenthic a.
1967Oceanogr. & Marine Biol. V. 477 The population of characteristic macrobenthic animals includes four species: O. radiata, Nerine cirratulus, the isopod Eurydice affinis and the small pelecypod Mesodesma corneum. 1988Nature 6 Oct. 535/1 The two active vent fields..are all devoid of the luxuriant macrobenthic communities that have become the hallmark of analogous mid-oceanic ridge sites studied to date. |