Rising lake water temperatures threaten the survival of marimo, unique algal balls found only in cold lakes. Researchers clarified that the warmer it gets, the more the inward decomposition outpaces the outward growth of these life forms, making them increasingly fragile.
Rising lake water temperatures threaten the survival of marimo, unique algal balls found only in cold lakes. Kobe University researchers clarified that the warmer it gets, the more the inward decomposition outpaces the outward growth of these life forms, making them increasingly fragile.
Kobe University hydroengineer NAKAYAMA Keisuke is an expert on how different layers of water interact and how this affects aquatic life. In the past, this allowed him to elucidate many aspects of what contributes to the growth of marimo, which live at a depth of two to three meters below the surface.
Large marimo are now thought to be exclusively found in Lake Akan, and as seen from the data, even there they have become threatened."Therefore, it is necessary to propose measures to protect marimo from global warming, such as utilizing the cooler river water that flows into the marimo colony," suggests Nakayama.
Keisuke Nakayama, Katsuaki Komai, Motoshi Amano, Shintarou Horii, Yuichiro Somiya, Etsuko Kumamoto, Yoichi Oyama.Climate change could overexpose rare underwater 'marimo' algae balls to sunlight, killing them off according to a new study. Marimo are living fluffy balls of green algae. The world's largest marimo ...
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