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Essay / World Population - 1223
According to the United Nations Population Division, the world's population reached 6.5 billion in 2005 and will continue to grow by more than 76 million per year. United Nations estimates indicate that by 2050 there will be between 7.700 million and 10.6 billion, the most likely projection of 9.100 million people. The availability of arable land and the increased efficiency of producing food from land may be reaching their limits. Oceanographic conditions, climate and their effects on soil quality and various human uses determine cultivated land will not be able to provide food for an ever-increasing human population. On the other hand, it is recognized that marine and fresh waters, covering more than 70% of the planet's surface, constitute a reservoir of food substances, of industrial and biomedical importance, and also a source of degradation and dilution of anthropogenic and industrial substances. waste (Solar, 2002). Statistics from the Food and Agriculture Organization of the United Nations (FAO, 2002) indicate that food production from the aquatic environment is around 137 million tonnes, of which almost 31% comes from agricultural activities. . The FAO also estimates that to meet the needs of the human population in 2025, total production would need to reach 165 million tonnes. This significant increase cannot come from the capture of wild species without causing serious damage to marine ecosystems, lakes and rivers. Therefore, increased seafood production must necessarily come from a significant increase in cropping efficiency. The world's most populous countries like China, India and Indonesia, or those lacking sufficient arable land, like Japan, are turning primarily to aquaculture...... middle of paper .. .... culture of red abalone molluscs such as oysters, mussels and mussels, found in 400 more assessment sites, excluding patent exempt holders only aquaculture. Despite this large number of schools working on its cultivation, attempts have failed, mainly due to the lack of studies on its development (Osorio et al., 1979), its reproduction (Cancino & Becerra, 1978; Solis & Lozada, 1971), and larval establishment (Ramorino & Campos, 1983), acclimation to culture conditions (Cancino & Becerra, 1978), feeding, disease control (FIP, 1997) and genetic studies of base (Astete, 1995; Martínez-Lage et al., 2002, Martínez-Lage et al., 2005, Mena et al., 2001; Thiriot-Quièvreux, 1984 Toro, 1998), which led to seriously endangering the existence of natural banks and populations, added to this is the absence of resource management plans. mining activities.