Scientists say the discovery of another consequence global warming. According to them, under the influence of warming fish in the oceans is decreasing in size. 
Photos from open sources Researchers say they track sizes of approximately 600 different species of fish annually for already 11 years old and record a reduction in fish size. Based the constructed model, experts say that by 2050 at global warming will shrink fish about a quarter in size. Reasons for reducing the size of fish, by According to scientists, are to reduce the concentration of oxygen in water and its substitution with carbon dioxide, as well as in reducing the amount of food. Researchers report says reduction the size of fish is a new negative pressure factor on the ecosystem of the oceans, and this factor was not previously taken into account in forecasts. Previously, experts said that changing temperatures in the oceans have a negative effect on reproductive abilities of a number of fish, and it was also said that some species of fish cannot survive global warming due to critical level of CO2 in the water, but still no one predicted a decrease in the size of the fish as a whole. In the University British Columbia, where the report was compiled, say that falling levels of oxygen in the ocean are inevitable slows down the metabolism in organisms of marine life and with evolutionary point of view, reducing body size is a way out situation. In addition, experts have calculated that with the current global warming level the habitat of all fish in the world the ocean will shift about 36 kilometers in a decade. Displacement also affects food chains in the ocean and can have unpredictable consequences. “Let’s just say now we’re talking about the fact that in the northern latitudes in the future there may be small tropical fish that will look for a familiar environment habitat, ”says William Chong, one of the authors of the study. Based on preliminary experts say that the decrease the size of fish is observed in all oceans, but most strongly noticeable in the Indian and Atlantic oceans, which indirectly indicates to the factor that these two oceans absorb the most greenhouse gases.
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