Cage Aquaculture Views
Marine finfish aquaculture uses cages to contain fish and to prevent access by predators. A typical cage consists of a net suspended at the surface by a floating structure (e.g., a circular plastic pipe or collar). The walls of the net hang vertically from the waterh’s surface to a depth of around 6 to 20 meters. The cage is also closed across the bottom of the cylinder.
Since the 1980s, the size of cages has increased markedly. Early on cages were 40 meters in circumference (or approx 130 square meters in area across the top). Todayo’s standard containment pen is 100 meters in circumference, (800 square metres across the top) with volumes of 6,000 to 20,000 cubic meters at depths between 7.5 and 25 metres. A single aquaculture farm operation can have 30 of these circular pens.
To answer some of your questions, Floatech International is manufacturing modern circular HDPE cages. Floatech is a 12 year old company that focuses on Aquaculture equipments. you may brows through a or you can also contact them at 632-5279056 jcokeng.floatech@gmail.com Floatech do export their products too.
With the rapid increase in population and development of world economy there is an increasing demand of fish protein and to meet the future demand at the present status of per capita consumption, world aquaculture production is to be doubled within 2010 AD. Culture based fisheries as well as different mode of aquaculture has given tremendous importance at this stagnant situation of world capture. In this aspect, cage aquaculture is coming up as a promising venture for optimum use of water resource without disturbing much the surrounding ecosystem. Despite conflicts in resource use, cage culture in lakes and reservoirs continues to expand and covers almost ten percent of world aquaculture production, but problems from waste production and questions regarding sustainability.