| 单词 | plankton recorder | 
| 释义 | > as lemmasplankton recorder   plankton recorder  n. a modification of the plankton indicator in which the filter is in the form of a continuously moving roll. ΘΚΠ the world > life > biology > collection or conservation of natural specimens > 			[noun]		 > equipment for collecting or preserving > of marine life keer-drag1836 plankton net1902 plankton indicator1925 plankton recorder1926 1926    A. C. Hardy in  Nature 30 Oct. 631/1  				Whilst on the Discovery expedition I have been experimenting with such an instrument, which I am calling the Continuous Plankton Recorder... It is a development of the simple Plankton Indicator.., but in place of the silk netting discs, which had to be reloaded for each sample, I have substituted a long continuously moving roll operated by a propellor turned by the water through which it is towed. 1975    D. H. Cushing Marine Ecol. & Fisheries viii. 166  				The plankton recorder survey..is based on monthly samples from fixed merchant ship lines across the North Sea. 1992    Jrnl. Plankton Res. 14 513  				The data presented came from a larger set of five plankton recorder collections of zooplankton. < as lemmas | 
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