No doubt, water is life. With about 70% of the earth’s cover, it undeniably becomes one of our greatest resources.
We need water
to support our lives,
to grow our crops,
to water our stock,
to power our industries and for many other purposes.
Overfishing is a form of overexploitation where fish stocks are reduced to below acceptable levels. Overfishing can occur in water bodies of any sizes, such as ponds, rivers, lakes or oceans, and can result in resource depletion, reduced biological growth rates . Sustained overfishing can lead to critical depensation, where the fish population is no longer able to sustain itself. Some forms of overfishing, for example the overfishing of sharks, has led to the upset of entire marine ecosystems.
Global harvest of aquatic organisms in million tonnes, 1950–2010, as reported by the FAO.
Atlantic cod stocks were severely overfished in the 1970s and 1980s, leading to their abrupt collapse in 1992
Endangered animalsEvery year the number of endangered species steadily grows. More than 40 percent of all organisms are likely to become extinct soon, which is unbelievable. Some of them are simply few in numbers, some are threatened by changing environment. In most cases animal extinction, as well as other natural calamities, is a result of human actions. Many habitats are being destroyed around the world. It seems that endangered wildlife is everywhere around us. Human activity has strong influence on the process of animal extinction.
Endangered animals They build newer and newer factories, which release chemical wastes into ocean water. As a result, thousands of sea animal die out. Moreover, people often overexploit animals, buying and selling their valuable parts, such as skin, teeth, fat, tusks. If people continue treating our environment in such way, we will soon be trapped in ecological disaster. There are many reasons for rare species’ conservation. Firstly, they have aesthetic value. Secondly, they are useful from medical point of view. And, finally, the ecology of our planet literally depends on them.
People have to change their habits. People must take care of their health. Each of us have to do everything: to keep water clean, to safe endangered sea animals. Also it is necessary not only to clean water, but not to pollute. And we always have to remember, that the future of our oceans, seas and our planet is in our hands!
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