Despite denying climate change at global forums, the effect of an increase in temperature is a real threat for marine life and thousands of fish are on the verge of extinction. Global warming is undeniably one of the biggest problems right now and it is a threat to life, in general on Earth.
The increased temperature is a grave threat for all living populations risking them to get extinct by the end of this century. A new study recently published in the journal Science has revealed this threat to hundreds of fish types in oceans.
These include some of the most common fish species such as Atlantic cod, sockeye salmon, and even Alaska pollock. Many others such as brown trout and swordfish, are also at high risk.
It makes nearly 60% of the fish types are trying to shift to changes which may affect their survival chances, say the study authors.
The only way to control is by governments taking action and try to bring this temperature increase down by 1.5 degrees Celsius.
Dr. Flemming Dahlke is a marine biologist at Alfred Wegener Institute (Germany). He is one of the authors of this study and shares that nearly half of the total fish types are at risk. He emphasizes that it requires a quick action plan by the government and bring new policies and commitments to reduce the effect of changing climate.
This study investigated more than 700 marine fish and freshwater fish from all climatic zones of the world.
The increased heat is much likely to affect the vital life stages of the fish. The previous studies on fish and temperature changes were mainly on adult fish/ But this new study brings a new aspect to this area that temperature is much likely to affect every step of a complete life cycle of fish especially the reproduction phase.
The research team writes that this temperature increase may look ordinary but in terms of sensitivity to temperature, it is critical for marine life. Only those who could adapt to these new temperature shifts may survive. It is not just the fish but the consequences of this fish extinction would be enormous for humans as well.
More than 3 billion people consider seafood as their primary source of food mainly protein. if there is such a high shortage, all these people will either starve to death or fall for certain diseases due to malnutrition.
Many of these fish types move to much colder waters for their survival. But the rate of global warming and almost no action plan to control it, there are high chances that these fish would not be able to adapt.
Climate change, if continues, will bring huge changes in terms of population loss and damage to all ecosystems. Extinction of certain species would shake the whole food chain and it will affect everyone including humans.
This global warming is evident since 1970 as there is a gradual increase in oceanic temperature. This heat will entirely re-shape the aquatic ecosystems. This study highlights this alarming situation, requiring the world leaders to take more practical and meaningful steps to protect these fish types as well as people who rely on them.