While by definition plankton is free floating, zooplankton ha been known to move in predictable patterns.
Abstract: The composition and distribution of demersal zooplankton assemblages in the Brisbane River estuary (Queensland, Australia)...
Define zooplankton. zooplankton synonyms, zooplankton pronunciation, zooplankton translation
Habitat Selection by Demersal Nekton: Analysis of Videotape Data.
Definition of zooplankton. : plankton composed of animals. zooplanktonic.
Demersal zooplankton are taxonornically dis-tinct from the holozooplankton. Demersal zooplankton were captured in greater numbers at night and over sand sub-strates.
Demersal fish live and feed on or near the bottom of seas or lakes (the demersal zone). They occupy the sea floors and lake beds, which usually consist of mud, sand, gravel or rocks. In coastal waters they are found on or near the continental shelf...
demersal: Merriam-Webster's Collegiate Dictionary.
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Biophysical Interactions and Zooplankton Ecology.
81zooplankton (i = 3), pelagic fish (i = 4), demersal fish (i = 5). In total, the biomass evolution. 82can be written as follows