Aquaculture is practiced for a number of reasons. And the chief aim among them is food production and income generation. Most fresh-water aquaculture production (over 70 percent) comes from low-income, food-deficit countries. Even in the poorest countries, fish farming is seldom solely a subsistence activity. So while farmers may consume some of their product, typically fish are sold, thereby enabling farmers to earn income to purchase other goods and services.
Additional purposes of aquaculture include:
- Utilizing land unsuitable for agriculture;
- Utilizing inland water bodies such as shallow lakes;
- Reclaiming saline soils;
- Increasing the supply of highly valued species;
- Improving the reliability of fish supplied in the marketplace;
- Offsetting losses in the capture fisheries or in native fish populations;
- Servicing the sport fishing industry;
- Controlling parasites like mosquito and snail larvae that cause diseases such as dengue fever and malaria;
- Storing water; and
- Earning foreign exchange. (Europe and the United States import aquaculture products from Asia, Africa, and Central and South America.)
Most people think of aquaculture as the production of aquatic animals for human consumption, and many of the aquaculture efforts around the world are being conducted for that purpose. There are, however, other purposes for which aquatic organisms are grown.
Examples include producing minnows for bait, rearing tropical fishes and gold fish for the aquarium trade and producing ornamental aquatic plants (water liles).
|dengue fever||лихорадка денге|
3.5 Give English equivalents:
Низкие доходы, беднейшие страны, товары и услуги, земли, не подходящие для сельского хозяйства, высокоценные виды, местная рыбная популяция, борьба с паразитами, потребление человеком, декоративные водные растения.
Match the words of column A and the words of column B
3.7 Form the infinitives from the particles I and translate them:
Model: Forming – to form
Enabling, utilizing, reclaiming, increasing, improving, offsetting, servicing, controlling, storing, earning, producing, rearing.