Communication and Fish Behaviour

Since communication between individuals of a species of fish by chemical agents (pheromones) was first demonstrated in 1932, such a process has been suggested in many aspects of fish behaviour and development. Scientists  observed on such mechanisms in shoaling behaviour and beneficial conditioning of water, homing of migratory fish, communication of alarm, ‘crowding factor’ (which adversely affects growth, survival and fecundity in dense population), pair formation and spawning, and a range of other social interactions to know about fish communication. Some of the chemicals involved have been isolated and identified, but most are indicated by behavioural observations. Pheromones are of great significance in fish behaviour and ecology, and are likely to be an important factor in culture operations. For "communication" to occur between individuals, an intentional signal must be generated by one or more individuals and received and interpreted by one or more recipients. Among the many ways of communicating in aquatic environments, sound is perhaps the most effective, especially over long distances. Sounds produced by fishes for communication are generally associated with either reproduction or stressful situations.

  • Genetic and environmental components of behaviour of fish
  • Behavioural ecology
  • Fish behaviour- migration, resting, communication, aggression
  • Liabilities of grouping behaviour
  • Kinds of pigments in fish responsible for visual signals
  • Chemical senses of teleosts in behavioural responses of fish

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