Videos of fish swimming in the Pinheiros River, in the capital of São Paulo, surprised social networks on Monday (12). According to experts, the presence of animals is indicative of a new beginning of life in the area.
According to them, the animals came from other tributaries where the waters are already recovered. However, it is positive that they have found a point on the Pinheiros River with sufficient oxygenation to remain alive.
The Infrastructure and Environment Secretariat informed that it is still analyzing the appearance of fish at the site in order to have more information about the migration and the species identified.
According to Malu Ribeiro, director of the SOS Mata Atlântica Foundation, the fish is most likely to have left the Sapateiro stream, which begins in the region of Avenida Paulista and ends at the Pinheiros River, near the Cidade Jardim bridge, where the videos were recorded.
“It is a positive sign of a work of almost three decades to recover the rivers, streams and springs of the city. It is a start and it is important to show that we cannot stop what is being done ”, says Ribeiro.
The depollution of the river has been going on since the early 1990s. The recovery of Pinheiros is one of the main bets of Governor João Doria (PSDB) as a mark of his management until 2022, with the announcement of works of more than R $ 3.5 billion.
Doria even shared the videos on social media. “Fish in the Pinheiros River? Yea! We are recovering life on the Pinheiros River. Until December 2022, we will deliver it unpolluted to the citizens of São Paulo, ”said the governor.
For the specialists, the presence is the result of the continuous actions carried out in the last 30 years.
“A clean-up process requires massive investments and without discontinuity. We are only seeing these images because the actions have been taking place for many years, ”says Ribeiro.
For Antonio Carlos Zuffo, professor in the water resources department at Unicamp (State University of Campinas), with the decrease in the discharge of sewage in the river, the water gradually improves in quality. With that, some stretches start to present conditions that guarantee the survival of some animals.
“The water that reaches the Pinheiros River today is cleaner and begins to dilute with that which is polluted. Gradually, we started to see improvement. ”
In a note, the Secretariat for Infrastructure and the Environment said that the completion of the river clean-up program is scheduled for the end of 2022. For this purpose, expansion of sewage collection and treatment, de-silting and deepening of the river, collection and destination of solid waste and revitalization of margins.
“The expectation is that the river will harbor some species of fish, have clear and clean waters so that, without the odor, the population can occupy its banks and have a new leisure option”, he says.