Researchers discovered a tragic scene. Over 150 endangered Amazon river dolphins had died at Lake Tefé. In addition, there was a major depletion of fish numbers as well. The scientists immediately launched an investigation into this unusual occurrence.
Causes Unveiled
First of all, the specialists began measuring the water temperatures. They found out that Lake Tefé was reaching 41 degrees Celsius. Besides this, the temperature exceeded even the normal levels of spa baths. As a result, this water became unbearable to aquatic life.
The study identified the main driving forces. Severe droughts and heatwaves were major players. And, of course, climate change aggravated these conditions. These shallow waters, little wind, and high turbidity magnified the effect of the radiant heat.
Devastating Consequences
Heated dolphins succumbed quickly. Also, disruption of breeding cycles of fish, dolphins, and manatees occurred. This resulted in suffering populations.
As for Lake Tefé, it shrank during the great 2023 drought to nearly 25% of its size. This kind of shrinkage can be witnessed in other lakes too, with their area losses becoming as serious as 90%. Consequently, significant damage has occurred in the ecosystem. Experts warn that doing it again may wipe out a few species.
Looking Forward
Their calls are high priority actions. Reducing fossil fuel emissions is definitely the way forward. Failing that, global warming will worsen these crises.
Nevertheless, local actions alone won’t do the job. A global systems approach is necessary to achieve this end. Ultimately, the Amazon can be protected only by all acting together. This study points to the pressing need to act immediately.
