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Ductus pneumaticus of a bleak (Alburnus alburnus) filled with air

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Description: English: Ductus pneumaticus of a bleak (Alburnus alburnus) filled with air: After passing a Kaplan-turbine, the fish wanted to compensate the sudden overpressure in its swim bladder by releasing some air via the connection to the oesophagus..all for nothing, it died shortly after.English: Ductus pneumaticus of a bleak (Alburnus alburnus) filled with air: After passing a Kaplan-turbine, the fish wanted to compensate the sudden overpressure in its swim bladder by releasing some air via the connection to the oesophagus..all for nothing, it died shortly after. Date: 20 August 2015. Source: Own work. Author: Mucbtfs.

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8644b8442aea69c21ee700139a5826d4