| 单词 | limnetic |
| 释义 | limnetic, a.|lɪmˈnɛtɪk|
[f. Gr. λιµνήτ-ης living in marshes + -ic.]
Of, pertaining to, or living in the open part of a freshwater lake or pond, away from the margin or bottom.
1899G. C. Whipple Microsc. Drinking-Water viii. 105 The limnetic or pelagic organisms are those that make their home in the open water. They float or swim freely and are drifted about by every current... Then there are organisms that may be said to be facultative limnetic forms, that is, they are sedentary or free-swimming at will. 1903Amer. Naturalist XXXVII. 503 This work is in the main an extension of Häcker's earlier papers.. on the autonomy of the male and female pronuclei and of their derivatives in the development of limnetic Copepods. 1923Ecology IV. 372 (heading) Limnetic A[ssociation]. 1955C. C. Davis Marine & Fresh-Water Plankton i. 11 Horizontally, the relatively shallow area close to shore, characterized by rooted emergent or floating vegetation, is called the littoral region, while the region of open water is known as the limnetic (or pelagic) region... The limnetic region is much more extensive than the littoral in most lakes. 1957G. E. Hutchinson Treat. Limnol. I. i. 19 The region has had a long limnetic history and has contained large tectonic lakes since the middle Tertiary. |
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