Fish desperate for oxygen in Russia
Fish in the ponds of St. Petersburg, Russia are becoming increasingly desperate for oxygen, as winter continues.
“The only way to help the fish in this situation is to make more holes in the ice,” says Sergei Titov of St. Petersburg’s Lakes and Rivers Fish Sector Institute.
Swimmers who brave the frigid temperatures for an invigorating dip find themselves stroking through swarms of fish that flock to the open water. The fish are so thick that humans can easily reach out and catch them with their hands.
A swimmer gets out from icy water with fish clustering at an ice hole struggling for air in a pond in a park in St. Petersburg, Russia.
Not only does ice block oxygen that could be diffused into the water from the air, but it also impedes sunlight from reaching oxygen-generating plants and algae in the water.