Swedish biologists have called for the need to keep the Baltic Sea beaches clean, and their call even included "stopping urinating" in the sea water, according to the website "P4 Kalmar".
“Peeing in bath water can have bigger consequences than you think,” said Anna Björn, a biologist at the Baltic Sea Science Centre in Stockholm.
"It may seem like a drop in the ocean but it is said that one litre of urine feeds about six to eight kilograms of algae," she added.
“Urinating makes it difficult for cichlids to reach their food among the rocks, as the urine feeds the filamentous algae that replace them,” she explained.
The biologist described the Baltic Sea as the "Baltic rainforest" and "the most important habitat for many living things."