A form of dragnet having a very small mesh towards the end, used by zoologists for collecting small fishes and other marine animals.
| 单词 | θ20437 |
| 释义 | the world > life > biology > collection or conservation of natural specimens > [noun] > equipment for collecting or preserving > of marine life (6) keer-drag1836 A form of dragnet having a very small mesh towards the end, used by zoologists for collecting small fishes and other marine animals. plankton net1902 a very fine net used to collect samples of plankton or other very small organisms. plankton indicator1925 an apparatus that is towed behind a ship containing a filtering device by means of which the concentration of plankton can be estimated. plankton recorder1926 a modification of the plankton indicator in which the filter is in the form of a continuously moving roll. Subcategories:— part of (1) — specimens captured (1) |
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