Search for: [Subject and Keywords = European eel] OR [Subject and Keywords = Węgorz europejski \(Anguilla anguilla\)] OR [Subject and Keywords = anguilla anguilla] OR [Title = Karotenoidy u ryb. 5. Anguilla anguilla \(L.\)] OR [Title = Carotenoids in fish. 5. Anguilla anguilla \(L.\)] OR [Creator = Czeczuga, Bazyli]