๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Migration Dynamics of Fish Schools in Heterothermal Environments

โœ Scribed by Hiro-Sato Niwa

Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
337 KB
Volume
193
Category
Article
ISSN
0022-5193

No coin nor oath required. For personal study only.

โœฆ Synopsis

A mechanistic theory is presented to illustrate the ecologically scaled behavior of highly organized fish schools, which is principally controlled by thermal structure of the habitat. Starting from the equation governing the schooling dynamics of fish, and incorporating the hypothesized memory mechanism of thermal history into the model of klinokinesis, a mathematical formalism is developed which relates the individual processes of perception of temperature-gradients to the thermoregulatory migration of schools. The migration dynamics of schools in heterothermal environments is formulated as the modified Fick's law of diffusion in the presence of external potential field, which gives the advection-telegraph equation in combination with the continuity equation. A behavioral basis for the environmental potential function is proposed, which has been postulated ad hoc as a driving force of drift velocity in modeling biological aggregation patterns. It is predicted that the distribution of schools self-organizes into a critical state.Copyright 1998 Academic Press

๐Ÿ“œ SIMILAR VOLUMES

Self-organizing Dynamic Model of Fish Sc
Self-organizing Dynamic Model of Fish Schooling
โœ Hiro-Sato Niwa ๐Ÿ“‚ Article ๐Ÿ“… 1994 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 693 KB

Fish schools show a high degree of polarization in the absence of a leader or external stimuli. In this paper the problems of the collective motion of fish schooling are analyzed, and the question of how polarized patterns or structures arise spontaneously is addressed. I attempt to show collective

Order and Flexibility in the Motion of F
Order and Flexibility in the Motion of Fish Schools
โœ YOSHINOBU INADA; KEIJI KAWACHI ๐Ÿ“‚ Article ๐Ÿ“… 2002 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 595 KB

The coexistence of order and #exibility in the motion of "sh schools was studied by using a simple numerical model and a computer simulation. The numerical model is based on behavioral rules for individuals in the school by considering attraction, repulsion, and parallelorientation behavior. Each in

The dynamics of genetic algorithms in in
The dynamics of genetic algorithms in interactive environments
โœ Herbert Dawid; Kurt Hornik ๐Ÿ“‚ Article ๐Ÿ“… 1996 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 286 KB

We analyze the behavior of a simple genetic algorithm (GA) which is used to simulate the learning behavior of a population of interacting agents. Due to the fact that in this setup-contrary to traditional optimization setups-the fitness of a string depends on the current state of the population, exi