Showing papers on "Aquatic locomotion published in 2017"

On the rules for aquatic locomotion

Abstract: Why do most fish swim with a relatively constant tail-beat amplitude of approximately 20% of their body length while their speed is linearly correlated with their tail-beat flapping frequency? Scaling analysis and experiments show that this behavior is rooted in minimizing input power for swimming.

Aquatic and Terrestrial Locomotion

Abstract: This chapter considers three areas: anatomical modifications that facilitate movement on the land; fundamental movement patterns generated on land and in water; and locomotor strategies that allow successful movement in both aquatic and terrestrial habitats. It discusses the gaps in the current understanding of mudskipper locomotion and reflects on the broader aims to be drawn from studies of mudskipper anatomy and locomotor behaviors. In both aquatic and terrestrial environments, mudskippers are capable of multiple forms of locomotion that can be categorized into "sustained" and "burst" locomotor patterns. Sustained terrestrial locomotion of mudskippers is called "crutching" due to its superficial resemblance to a person walking on crutches. Mudskippers display kinematic patterns and morphology specially adapted for, and suited to, terrestrial locomotion. However, it is possible that functional trade-offs exist between aquatic and terrestrial locomotion such that these adaptations have occurred to the detriment of aquatic locomotion.

A survival guide for feeble fish

Abstract: As avid anglers we were always interested in the survival chances of fish in turbulent oceans. This paper addresses this question mathematically. We show that a fish with bounded aquatic locomotion speed can reach any point in the ocean if the fluid velocity is incompressible, bounded, and has small mean drift.