In this article we will discuss about Migration of Fishes:- 1. Definition of Migration 2. List of Migratory Fishes 3. Types 4. European Eel 5. Anadromous 6. Causes. Contents: Definition of Migration List of Migratory Fishes Types of Migration European Eel Migration Anadromous Migration Causes for Fish Migration 1. Definition of Migration: Migration of fish is defined as a class [...]
The following points highlight the top five devices required for protection of fishes from their enemies. The devices are: 1. Scales 2. Electric Organs 3. Poison Glands in Fishes 4. Luminous Organs 5. Colouration. Device # 1. Scales: The body of all fishes (except the members of the family Siluridae and some bottom- dwellers) is covered by an exoskeleton in [...]
In this article we will discuss about the Accessory Respiratory Organs in Fishes:- 1. Types of Accessory Respiratory Organs 2. Functions of Accessory Respiratory Organs 3. Significance. Types of Accessory Respiratory Organs: 1. Suprabrachial Organ: The supra-branchial organ is a specialised type of respiratory structure encountered in Clarias batrachus (Fig. 6.83A). It has a complex structural organisation and consists of [...]