The huge mussels, reaching 22 to 26 cms. in size which appeared along the bank of the Danube in Rousse about a fortnight ago, have been proved to be an invasive mussel species from China, Radio Varna reports.
Biodiversity and ecosystems experts from the Bulgarian Academy of Sciences say they are Chinese pond mussels. They were first spotted in the Danube in 2005 but since then, the population of the species has exploded.
The Chinese pond mussels are not a direct threat to the other animal species but they do attack their direct Bulgarian rivals – two species of pond mussels – by reducing their feed resources. The invasion was first noticed in the first half of August when the temperature of the water rose.
An American business delegation is visiting Bulgaria at the initiative of President Rumen Radev. Among the guests are representatives of leading companies operating in the defence, space and cyber industries and high technologies...
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An official ceremony and a March of Tolerance named ''We Remember'' took place in Sofia to mark the 82nd anniversary of the rescue of Bulgarian..
It will be sunny on Monday. There will be light to moderate southerly and southwesterly wind and temperatures will continue to go up. The lowest..
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