macrobenthosn.

Brit.

/ˌmakrəʊˈbɛnθɒs/, U.S.

/ˈˌmækroʊˈbɛnˌθɑs/

Origin: Formed within English, by compounding. Etymons: macro- comb. form, benthos n.

Etymology: < macro- comb. form + benthos n. Compare microbenthos n.

Ecology.

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.

ΘΚΠ

the world > animals > by habitat > [noun] > of a particular region (fauna) > of particular type

ophiology1815

inquiline1879

pilgrim1888

microfauna1895

topomorph1897

faunule1909

cryptozoa1911

epifauna1914

macrofauna1918

megafauna1927

macrobenthos1942

meiobenthos1942

microbenthos1942

meiofauna1950

megafauna1975

1942 M. F. Mare in Jrnl. Marine Biol. Assoc. 25 519 A new terminology is needed, and these groups are here designated the macrobenthos, meiobenthos, and microbenthos.

1973 Nature 30 Mar. 324/1 Meiobenthos has a much wider dissemination than macrobenthos within the sediments.

1985 Oceanogr. & Marine Biol. 23 586 The high productivity..resulted chiefly from the very high densities of meiofauna and..typical estuarine macrobenthos was restricted in both variety and density.

1997 Jrnl. Northwest Atlantic Fishery Sci. 21 65 Winter flounder were found to feed on 18 different genera of macrobenthos.

Derivatives

macroˈbenthic adj.

ΘΚΠ

the world > animals > by habitat > [adjective] > relating to fauna > relating to particular types of

cryptic1897

cryptobiotic1914

microfaunal1935

microbenthic1941

Ediacaran1961

macrobenthic1967

meiobenthic1969

Ediacarian1972

1967 Oceanogr. & Marine Biol. 5 477 The population of characteristic macrobenthic animals includes four species: O. radiata, Nerine cirratulus, the isopod Eurydice affinis and the small pelecypod Mesodesma corneum.

1988 Nature 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.

This entry has been updated (OED Third Edition, March 2000; most recently modified version published online March 2022).

单词	macrobenthos
释义	macrobenthosn. Brit. /ˌmakrəʊˈbɛnθɒs/, U.S. /ˈˌmækroʊˈbɛnˌθɑs/ Origin: Formed within English, by compounding. Etymons: macro- comb. form, benthos n. Etymology: < macro- comb. form + benthos n. Compare microbenthos n. Ecology. 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. ΘΚΠ the world > animals > by habitat > [noun] > of a particular region (fauna) > of particular type ophiology1815 inquiline1879 pilgrim1888 microfauna1895 topomorph1897 faunule1909 cryptozoa1911 epifauna1914 macrofauna1918 megafauna1927 macrobenthos1942 meiobenthos1942 microbenthos1942 meiofauna1950 megafauna1975 1942 M. F. Mare in Jrnl. Marine Biol. Assoc. 25 519 A new terminology is needed, and these groups are here designated the macrobenthos, meiobenthos, and microbenthos. 1973 Nature 30 Mar. 324/1 Meiobenthos has a much wider dissemination than macrobenthos within the sediments. 1985 Oceanogr. & Marine Biol. 23 586 The high productivity..resulted chiefly from the very high densities of meiofauna and..typical estuarine macrobenthos was restricted in both variety and density. 1997 Jrnl. Northwest Atlantic Fishery Sci. 21 65 Winter flounder were found to feed on 18 different genera of macrobenthos. Derivatives macroˈbenthic adj. ΘΚΠ the world > animals > by habitat > [adjective] > relating to fauna > relating to particular types of cryptic1897 cryptobiotic1914 microfaunal1935 microbenthic1941 Ediacaran1961 macrobenthic1967 meiobenthic1969 Ediacarian1972 1967 Oceanogr. & Marine Biol. 5 477 The population of characteristic macrobenthic animals includes four species: O. radiata, Nerine cirratulus, the isopod Eurydice affinis and the small pelecypod Mesodesma corneum. 1988 Nature 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. This entry has been updated (OED Third Edition, March 2000; most recently modified version published online March 2022). < n.1942
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