Long-axis twisting during locomotion of elongate fishes

@article{Donatelli2017LongaxisTD,
  title={Long-axis twisting during locomotion of elongate fishes},
  author={Cassandra M. Donatelli and Adam P. Summers and Eric D. Tytell},
  journal={Journal of Experimental Biology},
  year={2017},
  volume={220},
  pages={3632 - 3640}
}
ABSTRACT Fish live in a complex world and must actively adapt their swimming behavior to a range of environments. Most studies of swimming kinematics focus on two-dimensional properties related to the bending wave that passes from head to tail. However, fish also twist their bodies three dimensionally around their longitudinal axis as the bending wave passes down the body. We measured and characterized this movement, which we call ‘wobble’, in six species of elongate fishes (Anoplarchus… 

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References

SHOWING 1-10 OF 50 REFERENCES

Undulatory Locomotion in Elongate Aquatic Vertebrates: Anguilliform Swimming since Sir James Gray

To better understand the variability within this phylogenetically widespread mode of locomotion, recent work on the swimming kinematics of elongate fishes, salamanders and snakes is reviewed.

Pectoral Fin Locomotion in Fishes: Testing Drag-based Models Using Three-dimensional Kinematics

Three-dimensional analysis of pectoral fin propulsion in the largemouth bass revealed that bass fin kinematics are much more complex than expected on a rowing model of drag-based propulsion, and that the pectora fins may produce drag- based thrust even during protraction.

Median fin function in bluegill sunfish Lepomis macrochirus: streamwise vortex structure during steady swimming

  • E. Tytell
  • Biology, Physics
    Journal of Experimental Biology
  • 2006
This study analyzes flow in the transverse plane at a range of positions around bluegill sunfish Lepomis macrochirus, from the trailing edges of the dorsal and anal fins to the near wake, and proposes a three-dimensional structure of the vortex wake in which vortices from the caudal notch are elongated by the dorso-ventral cupping motion of the tail.

Function of the Caudal Fin During Locomotion in Fishes: Kinematics, Flow Visualization, and Evolutionary Patterns1

Two experimental approaches are reviewed which promise to provide new insights into the function and evolution of the caudal fin: three-dimensional kinematic analysis, and quantitative flow measurements in the wake of freely-swimming fishes using digital particle image velocimetry (DPIV).

Mechanical control of swimming speed: stiffness and axial wave form in undulating fish models

On the basis of the mechanical control of swimming speed in model sunfish, it is predicted that, in order to swim at fast speeds, live sunfish increase the flexural stiffness of their bodies by a factor of two relative to their passive body stiffness.

A review of fish swimming mechanics and behaviour in altered flows

  • J. Liao
  • Environmental Science, Biology
    Philosophical Transactions of the Royal Society B: Biological Sciences
  • 2007
New data are presented here which show that behaviour changes in altered flows when either the lateral line or vision is blocked, showing that fish rely on multi-modal sensory inputs to negotiate complex flow environments.

Aquatic vertebrate locomotion: wakes from body waves.

The phase relationship between the Tailbeat cycle and the inflection point cycle can be used as a first approximation of the phase between the proto-vortex and the tailbeat cycle, which determines the interaction between body and tail vortices, which are shed when the tail changes direction.

Fish larvae exploit edge vortices along their dorsal and ventral fin folds to propel themselves

It is concluded that propulsion in larval fish partly relies on unsteady high-intensity vortices along the upper and lower edges of the fin fold, providing a functional explanation for the omnipresence of thefin fold in bony-fish larvae.

The hydrodynamics of eel swimming

The hydrodynamics of American eels swimming steadily at 1.4 L s-1 are examined and it is inferred that the lack of downstream flow results from a spatial and temporal balance of momentum removal and thrust generated along the body, due to the relatively uniform shape of eels.

Effects of non-uniform stiffness on the swimming performance of a passively-flexing, fish-like foil model.

The combination of non-uniform stiffness distributions and 0° angle of attack pitching program was better able to reproduce the kinematics of freely-swimming fish, resulting in high self-propelled speeds at low costs of transport and large thrust coefficients at relatively high efficiency.