单词 | phytal |
释义 | phytaladj. Ecology. Of, relating to, or designating the parts of a lake or other body of water which are shallow enough to permit the growth of rooted green plants. ΘΚΠ the world > the earth > water > body of water > [adjective] > relating to shallow parts of body of water phytal1918 1918 R. A. Muttkowski in Trans. Wisconsin Acad. Sci., Arts & Lett. 19 378 The lake as a whole may be divided into three general regions,—the littoral, or phytal region; the aphytal region; and pelagic region. 1926 A. S. Pearse Animal Ecol. vi. 210 Muttkowski uses ‘littoral’ as synonymous with ‘phytal’.., but in very turbid lakes the phytal zone may be thinner than that of wave action, and in clear, small lakes it may be thicker. 1958 W. D. R. Hunter in R. Miller & J. Tivy Glasgow Region 107 (caption) Map of Loch Lomond showing the extent of water (less than 13 feet deep), which is shallow enough to permit the growth of rooted green plants, i.e. the potential phytal zone. 1973 Nature 8 June 342/1 Marine grasses would also have provided new sources of food for the macrofauna and microfauna and new means of dispersal for benthonic and phytal organisms. 1990 Jrnl. Zool. 220 197 Tiny opisthobranchs such as the Runcinidae or the Limapontiidae, which are herbivores living in the phytal zone, lack such accessory ganglia. This entry has been updated (OED Third Edition, March 2006; most recently modified version published online March 2022). < adj.1918 |
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