出典:Wiktionary
出典:『Wiktionary』 (2025/12/23 22:38 UTC 版)
Borrowed from German Plankton, coined by German zoologist and marine biologist Victor Hensen. By surface analysis, Ancient Greek πλαγκτός (planktós, “drifter”) + -on. Ultimately from Ancient Greek πλαγκτόν (planktón, “drifting”), neuter nominative of πλαγκτός (planktós), from πλάζομαι (plázomai, “to wander, drift”), from πλάζω (plázō, “to cause to wander, drive astray”). By surface analysis, plankt- + -on.
plankton (usually uncountable, plural planktons or plankton)
出典:Wikipedia
出典:『Wikipedia』 (2011/07/01 20:01 UTC 版)
Plankton (singular plankter) are any drifting organisms (animals, plants, archaea, or bacteria) that inhabit the pelagic zone of oceans, seas, or bodies of fresh water. Plankton are defined by their ecological niche rather than phylogenetic or taxonomic classification. They provide a crucial source of food to larger, more familiar aquatic organisms such as fish and cetacea.