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A study published on the journal PLOS ONE demonstrates that
increased tourism on the Mediterranean coast correlates with a 70 per cent
decrease in mollusc shells during the tourist season in July and August and a
60 per cent decrease in other months. The study is signed by experts Jordi
Martinell and Rosa Domènech, from the Department of Stratigraphy, Palaeontology
and Marine Geosciences and the Biodiversity Research Institute of the
University of Barcelona (IRBio), and Michal Kowalewski, from the University of
Florida (USA).