“Pleuston”的意思、由来-开放百科全书

词条

Pleuston

释义

Neuston
Distinction versus other aquatic life
References
External links

Pleuston are the organisms that live in the thin surface layer existing at the air-water interface of a body of water as their habitat.^[1] Examples include some cyanobacteria, some gastropods, the ferns Azolla and Salvinia and the seed plants Lemna, Wolffia, Pistia, Eichhornia crassipes and Hydrocharis. Some fungi and fungi-like protists may be ad.

Neuston

The term Neuston is used either:

As a synonym for Pleuston: hence, the collective term for the organisms that float on the top of water (epineuston) or live right under the surface (hyponeuston).
That subset of floating organisms that are microscopic^[2] or those that rely on surface tension to float.^[3] This is in comparison with the term pleuston, which is then its superset, including those organisms that float by buoyancy or are macroscopic.

Neustons, broadly defined, are made up of some species of fish (see flying fish^[4]), beetles (see whirligig beetle), protozoans, bacteria and spiders (see fishing spider and diving bell spider). Springtails in the genera Podura and Sminthurides are almost exclusively neustonic, while Hypogastrura species often aggregate on pond surfaces. Water striders such as Gerris are common examples of insects that supports their weight on water's surface tension. By extension, the term may also refer to non-organismal floating aggregations (see, e.g., Great Pacific Garbage Patch).

Distinction versus other aquatic life

Plankton (organisms that float or drift within the water) are distinguished from nekton (organisms that swim, powerfully, in the water), and benthos (organisms on the bottom of a body of water).

References

1. ^{{cite web|title=Pleuston|url=http://www.merriam-webster.com/dictionary/pleuston|work=Merriam-Webster Online}}
2. ^{{cite book|last=P. S. Liss, W. George N. Slinn|title=Air-sea exchange of gases and particles|isbn=978-90-277-1610-1|pages=148|date=1983-07-31}}
3. ^{{cite book|last=James H. Thorp, Alan P. Covich|title=Ecology and classification of North American freshwater invertebrates|isbn=978-0-12-690647-9|pages=34|date=2001-04-23}}
4. ^{{cite web|url=https://books.google.com/books?id=yHTGFh1jq6AC&pg=PA46|title=The Sea Surface and Global Change by P. S. Liss, Robert A. Duce|author=|date=|website=google.com|accessdate=9 June 2018}}

External links

{{cite web |url=http://www.britannica.com/eb/article-9055398/neuston |title=neuston - Britannica Online |accessdate=2007-11-13 |publisher=Encyclopædia Britannica}}

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