Nekton
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Nekton or necton is any aquatic organism that can actively and persistently propel itself through a water column without touching the bottom. They are generally aquatic animals with powerful tails and
Nekton (organisms that swim against water currents) can be contrasted with plankton (organisms that drift with water currents), neuston (organisms that live at the ocean surface) and benthos (organisms that live at the ocean floor)
Aerial view of Slapton Sands and northern part of Ley geograph.org.uk 1434412
Maldivesfish 2
Reynolds number
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In fluid dynamics, the Reynolds number is a dimensionless quantity that helps predict fluid flow patterns in different situations by measuring the ratio between inertial and viscous forces. At low Rey
Nekton
…active swimmers in a body of water, and the plankton that are passively carried along by the current. As a guideline, nektonic organisms have a high Reynolds number (greater than 1000) and planktonic organisms a low one (less than 10) . Some organisms begin their life cycle as planktonic eggs and larvae, and…
The plume from this candle flame transitions from laminar to turbulent.
George Stokes introduced Reynolds numbers.
The Brezina equation
Universal sedimentation equation — drag coefficient, a function of Reynolds number and shape factor, 2D diagram