| Specijalna hranidba domaćih životinja M Domaćinović, Z Antunović, E Džomba, A Opačak, M Baban | 69 | 2015 |
| Influence of weather conditions on honey bee visits (Apis mellifera carnica) during sunflower (Helianthus annuus L.) blooming period Z Puškadija, E Štefanić, A Mijić, Z Zdunić, N Parađiković, T Florijančić, ... Poljoprivreda 13 (1), 230-233, 2007 | 59 | 2007 |
| Diet spectrum of great cormorants (Phalacrocorax carbo sinensis L.) at the Donji Miholjac carp fishponds in eastern Croatia A Opačak, T Florijančić, D Horvat, S Ozimec, D Bodakoš European Journal of Wildlife Research 50, 173-178, 2004 | 37 | 2004 |
| Histochemical distribution of digestive enzymes in intestine of goldline, Sarpa salpa L. 1758 Z Kozarić, S Kužir, Z Petrinec, E Gjurčević, A Opačak Journal of Applied Ichthyology 22 (1), 43-48, 2006 | 27 | 2006 |
| The influence of polyzymes added to the food on the growth of carp fingerlings (Cyprinus carpio L.) I Bogut, A Opacak, I Stevic Aquaculture 129 (1-4), 252-252, 1995 | 24 | 1995 |
| Nutritivna i protektivna vrijednost riba s osvrtom na omega-3 masne kiseline I Bogut, A Opačak, I Stević, S Bogut Croatian Journal of Fisheries: Ribarstvo 54 (1), 21-37, 1996 | 23 | 1996 |
| Rearing carp larvae (Cyprinus carpio) in closed recirculatory system (RAS) D Jelkić, A Opačak, I Stević, S Ozimec, J Jug Dujaković, R Safner Croatian Journal of Fisheries: Ribarstvo 70 (1), 9-17, 2012 | 19 | 2012 |
| Common carp fry survival during salinity stress test: effect of feeding regime-short communication. D Jelkić, A Opačak, D Horvat, R Safner | 18 | 2014 |
| Heavy metal concentrations in the liver of two wild duck species: influence of species and gender T Florijančić, A Opačak, I Bošković, D Jelkić, S Ozimec, T Bogdanović, ... Italian Journal of Animal Science 8 (sup3), 222-224, 2009 | 12 | 2009 |
| A record of the North American paddlefish (Polyodon spathula Walbaum, 1872) in Croatia. D Jelkić, A Opačak Journal of Applied Ichthyology 29 (5), 2013 | 10 | 2013 |
| The needs and importance of fatty acids in the nutrition of fish I Bogut, A Opačak Croatian Journal of Fisheries: Ribarstvo 54 (2), 75-91, 1996 | 10 | 1996 |
| The lichen flora of Risnjak National Park (Croatia) S Ozimec, I Bošković, T Florijančić, D Jelkić, A Opačak, Z Puškadija, ... Acta Botanica Croatica 69 (1), 19-29, 2010 | 9 | 2010 |
| Posjećenost suncokreta (Helianthus annuus L.) medonosnom pčelom (Apis mellifera L.) u agro-eko sustavu Baranje R Lužaić, Z Puškadija, T Florijančić, A Opačak, I Bošković, D Jelkić Krmiva: Časopis o hranidbi životinja, proizvodnji i tehnologiji krme 50 (3 …, 2008 | 9* | 2008 |
| Importance of the Danube River in spreading the infection of red deer with Fascioloides magna in eastern Croatia T Florijančić, S Ozimec, A Opačak, I BOŠKOVIĆ, D JELKIĆ, ... 38th IAD conference, Dresden, Germany, 22-25, 2010 | 8 | 2010 |
| METODE PROCJENE HRANIDBE VELIKOGA VRANCA—KORMORANA K Terzić, A Opačak, D Jelkić, T Florijančić Croatian Journal of Fisheries: Ribarstvo 66 (4), 133-145, 2008 | 7 | 2008 |
| Znanstveno mišljenje o prisutnosti žive, olova, kadmija i arsena u akvatičnim organizmima na tržištu Republike Hrvatske E Srebočan, I Strunjak-Perović, D Lasić, A Opačak, D Knežević | 6 | 2014 |
| Lichen mycota from the island of Krk (northern Adriatic Sea, Croatia) S Ozimec, T Florijančić, A Opačak, Z Puškadija, J Topić Natura Croatica: Periodicum Musei Historiae Naturalis Croatici 18 (2), 367-385, 2009 | 6 | 2009 |
| Štetnici i neprijatelji riba na šaranskim ribnjacima A Opačak, D Jelkić Sveučilište Josipa Jurja Strossmayera u Osijeku, Fakultet agrobiotehničkih …, 2020 | 5 | 2020 |
| Monitoring the Ichthyofauna in nature park Kopački rit (Croatia): in 2008 D Jelkić, A Opačak, S Ozimec, T Florijančić, Z Puškadija, I Bošković 38th IAD Conference, Dresden, 1-5, 2010 | 5 | 2010 |
| EASTERN CROATIA I Bošković, T Florijančić, A Beck, R Beck, K Pintur, A Opačak, S Ozimec Izvorni znanstveni članci-Original scientific papers 51 (6), 305, 2009 | 5 | 2009 |
