The Baltic Sea becoming "Death Sea Area", Fish can not survive
Today, the Baltic Sea is facing a huge threat to marine life: ocean micro-algae blooms not only threaten the survival of other marine life, and the algae in the Baltic region has also created a substantial area of the ocean a film "Death Sea Area", and there gradually spread trends.
United States National Geographic Web site reported on the 5th, and now, the Baltic Sea is facing a huge threat to marine life: ocean micro-algae blooms not only threaten the survival of other marine life, and the algae in the Baltic region has also created a substantial area of a piece of marine "Death Sea Area", and has gradually spread trend.
WWF's wildlife expert Peter Westman introduction said that since 1970, the decree issued by the relevant departments to prohibit the discharge in the Baltic region, including DDT and polychlorinated biphenyls (PCBs) and other harmful chemical substances has been the region's ecological environment has been greatly improvement. However, now they face another threat to the Baltic Sea, which is crazy breeding sea algae are turning a film into a "Death Sea Area". Ocean "Death Sea Area" refers to the result of severe eutrophication caused by sea water fish can not survive in areas such as biotechnology.
Peter Westman said that in practice the waters of algae blooms in small pieces is a normal natural phenomenon, but the Baltic Sea in recent years, the propagation speed of algae was unexpected. He said that the algae breeding crazy because of excess nutrients in seawater, especially in agricultural activities and sewage discharge to the sea dumping of a large number of phosphorus and nitrogen, to the growth of algae provides a good environment for foundation. Whenever it rains, when farmland fertilizer was washed sea, while the Baltic Sea surrounding areas actually the sewage treatment system discharge sewage into the ocean.
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