Table 1.

Physical properties of the plankton.

		lengths (mm)		velocity (m s−1)a
		major	minor
jumping plankton	Labidocera aestiva	1.7–4.6	0.62–2.0	0.6–1.1
non-jumping plankton	Daphnia magna	3.5	1.4	0.071
	Pseudodiaptomus salina	0.87–1.1	0.39–0.43	0.16–0.27
	Acartia tonsa	1.0	0.38	0.50

^aIt is estimated by the impact velocity for the jumping plankton and by the maximum swimming velocity for the non-jumping plankton.