cover (pdf)Zdraveski K., Trajanovski S., Trichkova T., Tomov R. & Kalcheva H. — Joint ESENIAS and DIAS Scientific Conference and 9th ESENIAS Workshop Species, Ecosystems and Areas of Conservation Concern under Threat from the Invasive Alien Species: Outcomes — 507-515. PDF
Yildiz I. & Feyzioglu A. M. — Spatial and Seasonal Variation of the New Invader Oithona davisae (Ferrari F. D. & Orsi, 1984) (Cyclopoida: Oithonidae) in the Southeast Black Sea — 517-524. PDF
Arslan N., Camur-Elipek B. & Mercan D. — Distribution of the Ponto-Caspian Species Pontogammarus robustoides (Sars, 1894) (Amphipoda) in the Inland Waters of Turkey — 525-530. PDF
Munjiu O., Subernetkii I., Andreev N., Railean N. & Toderas I. — Distribution and Characteristics of the Invasive Alien Species Sinanodonta woodiana (Lea, 1834) (Bivalvia: Unionidae) in the Republic of Moldova — 531-538. PDF
Vadachkoria P., Tregubov A., Makharadze G., Mikashavidze E. & Varshanidze M. — Distribution and Quantitative Characteristics of Four Invasive Alien Species off the Black Sea Coast of Georgia — 539-544. PDF
Japoshvili B., Lipinskaya T., Gajduchenko H., Sinchuk A., Bikashvili A. & Mumladze L. — First DNA-based Records of New Alien Freshwater Species in the Republic of Georgia — 545-551. PDF
Innal D. & Giannetto D. — Occurrence of Gambusia holbrooki Girard, 1859 (Poeciliidae) in Four Mediterranean River Estuaries of Turkey, Nursery Habitats of Several Native and Threatened Species — 553-560. PDF
Gencoglu L., Kirankaya S. G. & Ekmekci F. G. — Age and Growth of Marine and Translocated Freshwater Populations of Atherina boyeri Risso, 1810 (Atherinidae) in Turkey — 561-570. PDF
Kornilev Y. V., Lukanov S., Pulev A., Slavchev M., Andonov K., Vacheva E., Vergilov V., Mladenov V., Georgieva R. & Popgeorgiev G. — The Alien Pond Slider Trachemys scripta (Thunberg in Schoepff, 1792) in Bulgaria: Future Prospects for an Established and Reproducing Invasive Species — 571-581. PDF
Stanescu F., Rozylowicz L., Tudor M. & Cogalniceanu D. — Alien Vertebrates in Romania – A Review — 583-595. PDF
Ciceoi R. & Gutue M. — Updated List of Host Plants of Tuta absoluta (Meyrick, 1917) (Lepidoptera: Gelechiidae) with Reference to Romania — 597-610. PDF
Todorov M., Kenderov M., Botev I., Hubenov Z. & Trichkova T. — First Records of Pectinatella magnifica (Leidy, 1851) (Bryozoa: Plumatellida: Pectinatellidae) in the Bulgarian Shoreline Zone of the Danube River — 611-617. PDF
Atanackovic A., Zoric K., Tomovic J., Ilic M., Tubic B., Csanyi B. & Paunovic M. — Range Extension of the Ponto-Caspian polycheate Manayunkia caspica Annenkova, 1929 (Annelida: Fabriciidae) in the Danube River — 619-622. PDF
Zoric K. S., Atanackovic A. D., Ilic M. D., Csanyi B. & Paunovic M. M. — The Spiny-cheek Crayfish Faxonius limosus (Rafinesque, 1817) (Decapoda: Cambaridae) Invades New Areas in Serbian Inland Waters — 623-627. PDF
Djikanovic V. D., Skoric S. B. & Mickovic B. M. — Diet of the Round Goby Neogobius melanostomus (Pallas, 1811) (Gobiidae) in the Danube and Velika Morava Rivers in Serbia — 629-634. PDF
Radonjic S. & Hrncic S. — Overview of the Arthropod Pests of Citrus Plants in Montenegro — 635-648. PDF
Chireceanu C., Bosoi M., Podrumar T., Ghica M., Teodoru A., Chiriloaie-Palade A. & Zaharia R. — Invasive Insect Species Detected on Grapevines in Romania during 2016-2019 and First Record of Erasmoneura vulnerata (Fitch, 1851) (Hemiptera: Cicadellidae) — 649-659. PDF
Fatu A.-C. , Cardas G, Ciornei C. & Andrei A.-M. — Experimental Field Application of Beauveria bassiana (Bals.) Vuill. for Control of the Invasive Sawfly Aproceros leucopoda Takeuki, 1939 (Hymenoptera: Argidae) in Romania — 661-666. PDF
Innal D., Tocan B., Gulle I., Caglan D. C., Dugel M. & Avsar D. — Diversity and Distribution of the Ichthyofauna in the Goksu River Estuary, Turkey — 667-676. PDF
Kalcheva H., Kiss A., Dinka M., Berczik A., Kalchev R. & Agoston-Szabo E.
— Zooplankton Diversity and Correlations with Biotic and Abiotic Factors in Water Bodies in the Middle Danube River Basin, Hungary — 677-686. PDF
Konjevic A. — First Records of the Brown Marmorated Stink Bug Halyomorpha halys (Stal, 1855) (Hemiptera: Pentatomidae) in Republic of North Macedonia — 687-690. PDF
Tomov R. — First Record of the Japanese Grape Leafhopper Arboridia kakogawana (Matsumura, 1932) (Homoptera: Cicadellidae, Erythroneurini) in Bulgaria — 691-695. PDF
Tomov R. — First Records of the Walnut Shield Bearer Coptodisca lucifluella (Clemens, 1860) (Lepidoptera: Heliozelidae) in Bulgaria — 697-700. PDF