Researchers: Large algae on the Baltic Sea coast are a good sign
Scientists from the Latvian Institute of Aquatic Ecology explain that large algae appearing along the Baltic Sea coast are a natural and beneficial phenomenon rather than a nuisance for swimmers. The algae perform vital ecological functions that support marine life.
When swimmers encounter thick clumps of large algae in the sea during summer, it can seem unpleasant or off-putting. However, specialists from the Latvian Institute of Aquatic Ecology stress that these algae play a crucial role in maintaining the sea's natural balance, and their presence signals a healthy ecosystem rather than an environmental problem.
The role algae play in marine life
Leading researcher and hydrobiologist Ingrīda Andersone, together with research assistant Anete Fedorovska, explained on the Latvian Radio programme "Zināmais nezināmajā" that large algae form extensive underwater meadows that serve as shelter and habitat for numerous marine species. These algae meadows provide fish with suitable spawning grounds, meaning the algae's presence directly influences the renewal of fish populations.
Beyond that, algae perform several other important ecological functions — they filter seawater, helping maintain its quality, and through photosynthesis they produce oxygen needed by other marine organisms. At the same time, algae serve as a significant food source for various sea creatures, forming the basis of a broader food chain.
Why there is no cause for concern
The researchers note that although algae along the coast may inconvenience swimmers, this should not be seen as a negative phenomenon. On the contrary, the spread of large algae shows that the marine ecosystem is functioning as it should, fulfilling its natural role in sustaining coastal biodiversity.
