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Pakistan has also cut the use of dangerous pesticides dramatically. [13] Pakistan is a net food exporter, except in occasional years, when its harvest is adversely affected by droughts. Pakistan exports rice, cotton, fish, fruits (especially Oranges and Mangoes), and vegetables and imports vegetable oil, wheat, pulses and consumer foods.
The major fish harbours of Pakistan are: Karachi Fish Harbour handles about 90% of fish and seafood catch in Pakistan and 95% of fish and seafood exports from Pakistan. Karachi Fisheries Harbour is being operated by Provincial Government of Sindh. Korangi Fish Harbour is being managed by Federal Ministry of Ports & Shipping.
Aquaculture can also be defined as the breeding, growing, and harvesting of fish and other aquatic plants, also known as farming in water. It is an environmental source of food and commercial products that help to improve healthier habitats and are used to reconstruct the population of endangered aquatic species.
Fish farming or pisciculture involves commercial breeding of fish, most often for food, in fish tanks or artificial enclosures such as fish ponds. It is a particular type of aquaculture , which is the controlled cultivation and harvesting of aquatic animals such as fish, crustaceans , molluscs and so on, in natural or pseudo-natural environments.
Fish, plants and microbes are three main components of aquaponics, and microbes play the bridge role of converting fish waste to plant nutrients. The three major types of modern aquaponic designs are deep-water or "raft", nutrient film technology, and media-based bed or reciprocating systems.
A. Merits of various aquaculture systems and methods to improve production of commercially important species; a. Assessment of production potential with various levels of inputs in ponds. b. Formulation of low cost balanced feed. c. Breeding, selection and mass rearing. d. Diseases and their prevention. e. Pond engineering and water dynamics; f.
Lower water pressures are usually needed than for most other types of systems, with the exception of low-energy center pivot systems and surface irrigation systems, and the system can be designed for uniformity throughout a field or for precise water delivery to individual plants in a landscape containing a mix of plant species.
Raising fish in cages in a lake in a relatively undeveloped environment. Urban aquaculture employs water-based systems, the most common, which mostly use cages and pens; land-based systems, which make use of ponds, tanks and raceways; recirculating systems are usually high control enclosed systems, [clarification needed] whereas irrigation is used for livestock fish.