A fish is an aquatic vertebrate which is mostly characterized by the presence of gills throughout life, a streamlined body, and paired as well as unpaired fins which helps in swimming. It is the group that comprises jawless forms like hagfish and lampreys, cartilaginous fishes like sharks and rays, and the bony fishes which is … Read more
What Is Induced Breeding (hypophysation)? Induced breeding is the process in which fishes are stimulated to reproduce under controlled conditions when natural spawning does not occur in captivity. It is the technique where hormonal preparations are used to activate the maturation of gonads and to release the gametes. This is referred to as hypophysation because … Read more
What is Fish migration? Fish migration is the active, regular movement of fish populations from one place to another, often over long distances and various environments. This behavior is critical to the survival of fish and is a function of varied ecological, environmental, and biological factors. Fish migration is specific to different fish species, ranging … Read more
What is an Aquarium? Types of Aquarium An aquarium can be categorized based on its purpose, size, and the type of aquatic life it contains. Below are the primary types of aquariums, explained in detail: Major Aquarium Accessories Aquarium accessories are essential to maintaining a balanced and healthy environment for aquatic life. These tools and … Read more
What is Hatchery Management? Hatchery Management of Indian Major Carp Hatchery management plays a pivotal role in the aquaculture of Indian major carps (IMC), which are essential for food security and nutrition in India. This management process involves various systematic practices to ensure successful breeding, rearing, and incubation of carp species such as Catla (Catla … Read more
What is Broodstock Management? Objective of Broodstock Management Broodstock management is essential for optimizing fish breeding practices, particularly in aquaculture systems. The objectives of effective broodstock management encompass several key areas, all aimed at enhancing fish production and ensuring sustainability. The following points detail these objectives: Selection procedure of brood fish The selection procedure for … Read more
What is Composite Fish Culture? Steps in Composite Fish Culture 1. Site selection Site selection is a critical aspect of aquaculture that significantly influences the success of fish farming operations. Choosing an appropriate site requires a comprehensive evaluation of various factors that can affect fish health, growth, and overall productivity. The process can be categorized … Read more
What is Polyculture of Fishes? Indian Polyculture System In India, the polyculture system has evolved significantly over time, primarily focusing on the integration of various fish species to optimize production in aquaculture. Initially, this system prominently featured Indian major carps such as rohu (Labeo rohita), catla (Catla catla), and mrigal (Cirrhinus mrigala). Subsequently, the practice … Read more
Fishery by-products refer to the various materials derived from fish processing that are not intended for direct human consumption but have significant value in various industries. These by-products include fish meal, fish oil, fish skin, bones, and other remnants that arise during the cleaning and filleting of fish. They play a crucial role in waste … Read more
Fish is a vital protein source that requires meticulous handling to maintain its quality and safety. This necessity arises from fish’s susceptibility to spoilage, particularly in warm tropical climates, where high temperatures expedite the activities of bacteria, enzymes, and the oxidation of fats. In regions such as Nigeria, inadequate handling has resulted in significant losses, … Read more
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