Author: Mariya Chunchukova
River Danube
6. Arsenic content in parasite-host system: Alburnus Alburnus -Pomphorhynchus laevis and the impact of the acanthocephalan on his host
Author: Mariya Chunchukova, Dimitrinka Kuzmanova
11. Relationships in the system Barbus barbus – pomphorhynchus tereticollis – unio tumidus in connection with the circulation of lead in the freshwater ecosystem of the Danube river, Bulgaria
Author: Mariya Chunchukova, Diana Kirin
12. Ecological studies on the circulation of nickel in Abramis brama and Pomphorhynchus tereticollis from the freshwater ecosystem of the Danube river, Bulgaria
Author: Diana Kirin, Mariya Chunchukova