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Mrigal is popular as a food fish and an important aquacultured freshwater species throughout South Asia. [4] It is widely farmed as a component of a polyculture system of three Indian major carps, along with roho labeo and the catla. It was introduced by aquaculture across India started in the early 1940s, and later to other Asian countries.
A fishery is an area with an associated fish or aquatic population which is harvested for its commercial or recreational value. Fisheries can be wild or farmed. Population dynamics describes the ways in which a given population grows and shrinks over time, as controlled by birth, death, and migration. It is the basis for understanding changing ...
The Alosidae, or the shads, [1][2][3] are a family of clupeiform fishes. The family currently comprises four genera worldwide, and about 32 species. [4] The shads are pelagic (open water) schooling fish, of which many are anadromous or even landlocked. Several species are of commercial importance, e.g. in the genus Alosa (river herrings ...
In the world, and hence in Pakistan, fish is considered a cheap source of protein diet. In 2000, per capita food supply from fish and fishery products (kg/person) in Pakistan was 2, in Asia was 18 and in World was 16. Whereas, fish protein as a percentage of total protein supply in Pakistan was only 1%, in Asia was 10% and in World was 6%. [2]
A fishery is socially sustainable if the fishery ecosystem maintains the ability to deliver products the society can use. Major species shifts within the ecosystem could be acceptable as long as the flow of such products continues. [2] Humans have been operating such regimes for thousands of years, transforming many ecosystems, depleting or ...
Marine conservation, also known as ocean conservation, is the protection and preservation of ecosystems in oceans and seas through planned management in order to prevent the over-exploitation of these marine resources. Marine conservation is informed by the study of marine plants and animal resources and ecosystem functions and is driven by ...
Fish preservation is the method of increasing the shelf life of fish and other fish products by applying the principles of different branches of science in order to keep the fish, after it has landed, in a condition wholesome and fit for human consumption. [1][2] Ancient methods of preserving fish included drying, salting, pickling and smoking.
Of the subpopulations of fish evaluated by the IUCN, 20 species subpopulations and one subspecies subpopulation have been assessed as critically endangered. Additionally 3191 fish species (21% of those evaluated) are listed as data deficient , meaning there is insufficient information for a full assessment of conservation status.