TY  - JOUR
AU  - Jaćimović, Milica
AU  - Smederevac-Lalić, Marija
AU  - Nikolić, Dušan
AU  - Cvijanović, Gorčin
AU  - Spasić, Slađana
AU  - Višnjić Jeftić, Željka
AU  - Skorić, Stefan
AU  - Krpo-Ćetković, Jasmina
PY  - 2023
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2427
AB  - 1.	Black bullhead is among the most abundant and successful non-native fish species in European freshwaters. A number of studies have indicated that its physical removal could be a potential solution to minimize possible negative impacts that it may have on native fishes; however, so far there have been no field studies to confirm this.
2.	This study quantified population dynamics of both native and non-native fishes in a small slow-running lowland river within the Ponjavica Nature Park in Serbia before and after the black bullhead removal with fyke-nets, which proved to be an efficient tool for this purpose.
3.	The removal of black bullhead resulted in statistically significant changes in two native species abundance – an increase of rudd (Scardinius erythrophthalmus) (by 5.3 times), and a decline of bleak (Alburnus alburnus) (by 2.3 times).
4.	Significant increase was observed in three non-native fish species: the abundances of topmouth gudgeon (Pseudorasbora parva), pumpkinseed (Lepomis gibbosus), and Prussian carp (Carassius gibelio) increased 25.5, 4.9, and 4.2 times, respectively.
5.	There were also substantial changes in the diversity of the fish assemblage after the black bullhead removal, illustrated by changes in diversity indices: Shannon's index doubled, while the Simpson’s dominance index decreased threefold.
6.	The catch-per-unit-effort and the biomass-per-unit-effort values indicated the dominance of the black bullhead in the fish assemblage. YOY/adult ratio did not vary in relation to abundance, which confirmed that black bullhead might not compensate for fishing mortality with the increased recruitment.
7.	The results suggest that black bullhead plays a significant role in structuring the fish assemblage and that its removal may have both positive and negative effects on species abundance and diversity. These findings can contribute to the conservation of native fish species and improvement of future management programs.
PB  - John  Wiley  &  Sons,  Ltd.
T2  - Aquatic Conservation: Marine and Freshwater Ecosystems
T1  - Changes to fish assemblage following the selective removal of black bullhead (Ameiurus melas)
EP  - 994
IS  - 9
SP  - 981
VL  - 33
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_2427
ER  - 

@article{
author = "Jaćimović, Milica and Smederevac-Lalić, Marija and Nikolić, Dušan and Cvijanović, Gorčin and Spasić, Slađana and Višnjić Jeftić, Željka and Skorić, Stefan and Krpo-Ćetković, Jasmina",
year = "2023",
abstract = "1.	Black bullhead is among the most abundant and successful non-native fish species in European freshwaters. A number of studies have indicated that its physical removal could be a potential solution to minimize possible negative impacts that it may have on native fishes; however, so far there have been no field studies to confirm this.
2.	This study quantified population dynamics of both native and non-native fishes in a small slow-running lowland river within the Ponjavica Nature Park in Serbia before and after the black bullhead removal with fyke-nets, which proved to be an efficient tool for this purpose.
3.	The removal of black bullhead resulted in statistically significant changes in two native species abundance – an increase of rudd (Scardinius erythrophthalmus) (by 5.3 times), and a decline of bleak (Alburnus alburnus) (by 2.3 times).
4.	Significant increase was observed in three non-native fish species: the abundances of topmouth gudgeon (Pseudorasbora parva), pumpkinseed (Lepomis gibbosus), and Prussian carp (Carassius gibelio) increased 25.5, 4.9, and 4.2 times, respectively.
5.	There were also substantial changes in the diversity of the fish assemblage after the black bullhead removal, illustrated by changes in diversity indices: Shannon's index doubled, while the Simpson’s dominance index decreased threefold.
6.	The catch-per-unit-effort and the biomass-per-unit-effort values indicated the dominance of the black bullhead in the fish assemblage. YOY/adult ratio did not vary in relation to abundance, which confirmed that black bullhead might not compensate for fishing mortality with the increased recruitment.
7.	The results suggest that black bullhead plays a significant role in structuring the fish assemblage and that its removal may have both positive and negative effects on species abundance and diversity. These findings can contribute to the conservation of native fish species and improvement of future management programs.",
publisher = "John  Wiley  &  Sons,  Ltd.",
journal = "Aquatic Conservation: Marine and Freshwater Ecosystems",
title = "Changes to fish assemblage following the selective removal of black bullhead (Ameiurus melas)",
pages = "994-981",
number = "9",
volume = "33",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_2427"
}

Jaćimović, M., Smederevac-Lalić, M., Nikolić, D., Cvijanović, G., Spasić, S., Višnjić Jeftić, Ž., Skorić, S.,& Krpo-Ćetković, J.. (2023). Changes to fish assemblage following the selective removal of black bullhead (Ameiurus melas). in Aquatic Conservation: Marine and Freshwater Ecosystems
John  Wiley  &  Sons,  Ltd.., 33(9), 981-994.
https://hdl.handle.net/21.15107/rcub_rimsi_2427

Jaćimović M, Smederevac-Lalić M, Nikolić D, Cvijanović G, Spasić S, Višnjić Jeftić Ž, Skorić S, Krpo-Ćetković J. Changes to fish assemblage following the selective removal of black bullhead (Ameiurus melas). in Aquatic Conservation: Marine and Freshwater Ecosystems. 2023;33(9):981-994.
https://hdl.handle.net/21.15107/rcub_rimsi_2427 .

Jaćimović, Milica, Smederevac-Lalić, Marija, Nikolić, Dušan, Cvijanović, Gorčin, Spasić, Slađana, Višnjić Jeftić, Željka, Skorić, Stefan, Krpo-Ćetković, Jasmina, "Changes to fish assemblage following the selective removal of black bullhead (Ameiurus melas)" in Aquatic Conservation: Marine and Freshwater Ecosystems, 33, no. 9 (2023):981-994,
https://hdl.handle.net/21.15107/rcub_rimsi_2427 .

TY  - CONF
AU  - Jaćimović, Milica
AU  - Smederevac-Lalić, Marija
AU  - Nikolić, Dušan
AU  - Cvijanović, Gorčin
AU  - Spasić, Slađana
AU  - Višnjić Jeftić, Željka
AU  - Skorić, Stefan
AU  - Krpo-Ćetković, Jasmina
PY  - 2022
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1687
AB  - Црни амерички патуљасти сом (Ameiurus melas) представља једну од најзаступљенијих и најуспешнијих инвазивних врста риба која насељава копнене воде Европе, укључујући и Србију. У досадашњим истраживањима напомиње се да би санациони излов могао да буде потенцијално решење проблема које ова врста изазива у водама у којима је интродукован. У овом истраживању, реализованом од јуна 2018. до октобра 2019. године, квантификована је популациона динамика аутохтоних и алохтоних врста риба у Парку природе „Поњавица“ након селективног излова црног америчког патуљастог сома. Укупно је изловљено 20.145 јединки ове врсте што је утицало на абунданцу и аутохтоних и алохтоних врста риба. Статистички значајно повећање абунданце забележено је код црвенперке (Scardinius erythrophthalmus) (5,3 пута), док се абунданца уклије (Alburnus alburnus) смањила 2,3 пута. Најзначајнија промена забележена је међу популацијама алохтоних врста риба. Абунданца амурског чебачока (Pseudorasbora parva) повећана је 25,5 пута, сунчице (Lepomis gibbosus) 4,9 пута и бабушке (Carassius gibelio) 4,2 пута. Вредност Shannon-овог индекса диверзитета (H)1 била је двоструко већа након ове интервенције, док се вредност Simpson-овог индекса доминантности (C)2 смањила три пута. Вредности улова по јединици напора (енгл. catch-per-unit-effort – CPUE) и биомасе по јединици напора (енгл. biomass-per-unit-effort – BPUE) свих узоркованих врста током селективног излова показују доминацију црног америчког патуљастог сома. Резултати указују на то да је селективни излов ове врсте имао како позитивне, тако и негативне последице на насеље риба на истраживаном подручју.
PB  - Српско биолошко друштво
C3  - ТРЕЋИ КОНГРЕС БИОЛОГА СРБИЈЕ
T1  - Утицај селективног излова црног америчког патуљастог сома (Ameiurus melas) на насеље риба у Парку природе „Поњавица“
EP  - 161
SP  - 161
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_1687
ER  - 

@conference{
author = "Jaćimović, Milica and Smederevac-Lalić, Marija and Nikolić, Dušan and Cvijanović, Gorčin and Spasić, Slađana and Višnjić Jeftić, Željka and Skorić, Stefan and Krpo-Ćetković, Jasmina",
year = "2022",
abstract = "Црни амерички патуљасти сом (Ameiurus melas) представља једну од најзаступљенијих и најуспешнијих инвазивних врста риба која насељава копнене воде Европе, укључујући и Србију. У досадашњим истраживањима напомиње се да би санациони излов могао да буде потенцијално решење проблема које ова врста изазива у водама у којима је интродукован. У овом истраживању, реализованом од јуна 2018. до октобра 2019. године, квантификована је популациона динамика аутохтоних и алохтоних врста риба у Парку природе „Поњавица“ након селективног излова црног америчког патуљастог сома. Укупно је изловљено 20.145 јединки ове врсте што је утицало на абунданцу и аутохтоних и алохтоних врста риба. Статистички значајно повећање абунданце забележено је код црвенперке (Scardinius erythrophthalmus) (5,3 пута), док се абунданца уклије (Alburnus alburnus) смањила 2,3 пута. Најзначајнија промена забележена је међу популацијама алохтоних врста риба. Абунданца амурског чебачока (Pseudorasbora parva) повећана је 25,5 пута, сунчице (Lepomis gibbosus) 4,9 пута и бабушке (Carassius gibelio) 4,2 пута. Вредност Shannon-овог индекса диверзитета (H)1 била је двоструко већа након ове интервенције, док се вредност Simpson-овог индекса доминантности (C)2 смањила три пута. Вредности улова по јединици напора (енгл. catch-per-unit-effort – CPUE) и биомасе по јединици напора (енгл. biomass-per-unit-effort – BPUE) свих узоркованих врста током селективног излова показују доминацију црног америчког патуљастог сома. Резултати указују на то да је селективни излов ове врсте имао како позитивне, тако и негативне последице на насеље риба на истраживаном подручју.",
publisher = "Српско биолошко друштво",
journal = "ТРЕЋИ КОНГРЕС БИОЛОГА СРБИЈЕ",
title = "Утицај селективног излова црног америчког патуљастог сома (Ameiurus melas) на насеље риба у Парку природе „Поњавица“",
pages = "161-161",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_1687"
}

Jaćimović, M., Smederevac-Lalić, M., Nikolić, D., Cvijanović, G., Spasić, S., Višnjić Jeftić, Ž., Skorić, S.,& Krpo-Ćetković, J.. (2022). Утицај селективног излова црног америчког патуљастог сома (Ameiurus melas) на насеље риба у Парку природе „Поњавица“. in ТРЕЋИ КОНГРЕС БИОЛОГА СРБИЈЕ
Српско биолошко друштво., 161-161.
https://hdl.handle.net/21.15107/rcub_rimsi_1687

Jaćimović M, Smederevac-Lalić M, Nikolić D, Cvijanović G, Spasić S, Višnjić Jeftić Ž, Skorić S, Krpo-Ćetković J. Утицај селективног излова црног америчког патуљастог сома (Ameiurus melas) на насеље риба у Парку природе „Поњавица“. in ТРЕЋИ КОНГРЕС БИОЛОГА СРБИЈЕ. 2022;:161-161.
https://hdl.handle.net/21.15107/rcub_rimsi_1687 .

Jaćimović, Milica, Smederevac-Lalić, Marija, Nikolić, Dušan, Cvijanović, Gorčin, Spasić, Slađana, Višnjić Jeftić, Željka, Skorić, Stefan, Krpo-Ćetković, Jasmina, "Утицај селективног излова црног америчког патуљастог сома (Ameiurus melas) на насеље риба у Парку природе „Поњавица“" in ТРЕЋИ КОНГРЕС БИОЛОГА СРБИЈЕ (2022):161-161,
https://hdl.handle.net/21.15107/rcub_rimsi_1687 .

TY  - CONF
AU  - Jaćimović, Milica
AU  - Krpo-Ćetković, Jasmina
AU  - Smederevac-Lalić, Marija
AU  - Lenhardt, Mirjana
AU  - Nikolić, Dušan
AU  - Hegediš, Aleksandar
PY  - 2018
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1701
AB  - Istraživanje populacione dinamike crnog američkog patuljastog soma Ameiurus melas
(Rafinesque, 1820) u Savskom jezeru realizovano je u periodu od avgusta 2009. do decembra
2012. godine. U cilju pronalaženja načina za smanjenje i kontrolu brojnosti populacija
ove invazivne alohtone vrste (pre svega u stajaćim vodama), važno je ispitati i selektivnost
ribolovnog alata (vrša). Selektivnost vrša procenjena je na osnovu odnosa ulovljenih jedinki
crnog američkog patuljastog soma i drugih vrsta riba, za svaki mesec pojedinačno. Ukupno
je uhvaćeno 13866 jedinki, od čega su jedinke crnog američkog patuljastog soma činile
94.2%, grgeča (Perca fluviatilis) 3.2% i sunčice (Lepomis gibbosus) 2.1%. Ulov štuke (Esox
lucius), deverike (Abramis brama), babuške (Carassius gibelio), šarana (Cyprinus carpio),
bodorke (Rutilus rutilus)), smuđa (Sander lucioperca) i glavoča (Gobiidae) bio je na nivou
statističke greške (< 1%). Rezultati istraživanja pokazuju da se vrše mogu primenjivati u
kontroli brojnosti populacija crnog američkog patuljastog soma, jer osim što su selektivne,
efikasne i lake za rukovanje, imaju minimalan negativni uticaj na druge vrste riba.
PB  - University of Belgrade - Faculty of Agriculture
C3  - VIII International conference “Water & Fish”
T1  - FYKE NETS SELECTIVITY FOR BLACK BULLHEAD
(AMEIURUS MELAS) IN SAVA LAKE
T1  - SELEKTIVNOST VRŠA U IZLOVU CRNOG AMERIČKOG PATULJASTOG SOMA (AMEIURUS MELAS) U SAVSKOM JEZERU
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_1701
ER  - 

@conference{
author = "Jaćimović, Milica and Krpo-Ćetković, Jasmina and Smederevac-Lalić, Marija and Lenhardt, Mirjana and Nikolić, Dušan and Hegediš, Aleksandar",
year = "2018",
abstract = "Istraživanje populacione dinamike crnog američkog patuljastog soma Ameiurus melas
(Rafinesque, 1820) u Savskom jezeru realizovano je u periodu od avgusta 2009. do decembra
2012. godine. U cilju pronalaženja načina za smanjenje i kontrolu brojnosti populacija
ove invazivne alohtone vrste (pre svega u stajaćim vodama), važno je ispitati i selektivnost
ribolovnog alata (vrša). Selektivnost vrša procenjena je na osnovu odnosa ulovljenih jedinki
crnog američkog patuljastog soma i drugih vrsta riba, za svaki mesec pojedinačno. Ukupno
je uhvaćeno 13866 jedinki, od čega su jedinke crnog američkog patuljastog soma činile
94.2%, grgeča (Perca fluviatilis) 3.2% i sunčice (Lepomis gibbosus) 2.1%. Ulov štuke (Esox
lucius), deverike (Abramis brama), babuške (Carassius gibelio), šarana (Cyprinus carpio),
bodorke (Rutilus rutilus)), smuđa (Sander lucioperca) i glavoča (Gobiidae) bio je na nivou
statističke greške (< 1%). Rezultati istraživanja pokazuju da se vrše mogu primenjivati u
kontroli brojnosti populacija crnog američkog patuljastog soma, jer osim što su selektivne,
efikasne i lake za rukovanje, imaju minimalan negativni uticaj na druge vrste riba.",
publisher = "University of Belgrade - Faculty of Agriculture",
journal = "VIII International conference “Water & Fish”",
title = "FYKE NETS SELECTIVITY FOR BLACK BULLHEAD
(AMEIURUS MELAS) IN SAVA LAKE, SELEKTIVNOST VRŠA U IZLOVU CRNOG AMERIČKOG PATULJASTOG SOMA (AMEIURUS MELAS) U SAVSKOM JEZERU",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_1701"
}

Jaćimović, M., Krpo-Ćetković, J., Smederevac-Lalić, M., Lenhardt, M., Nikolić, D.,& Hegediš, A.. (2018). FYKE NETS SELECTIVITY FOR BLACK BULLHEAD
(AMEIURUS MELAS) IN SAVA LAKE. in VIII International conference “Water & Fish”
University of Belgrade - Faculty of Agriculture..
https://hdl.handle.net/21.15107/rcub_rimsi_1701

Jaćimović M, Krpo-Ćetković J, Smederevac-Lalić M, Lenhardt M, Nikolić D, Hegediš A. FYKE NETS SELECTIVITY FOR BLACK BULLHEAD
(AMEIURUS MELAS) IN SAVA LAKE. in VIII International conference “Water & Fish”. 2018;.
https://hdl.handle.net/21.15107/rcub_rimsi_1701 .

Jaćimović, Milica, Krpo-Ćetković, Jasmina, Smederevac-Lalić, Marija, Lenhardt, Mirjana, Nikolić, Dušan, Hegediš, Aleksandar, "FYKE NETS SELECTIVITY FOR BLACK BULLHEAD
(AMEIURUS MELAS) IN SAVA LAKE" in VIII International conference “Water & Fish” (2018),
https://hdl.handle.net/21.15107/rcub_rimsi_1701 .

TY  - CONF
AU  - Jaćimović, Milica
AU  - Krpo-Ćetković, Jasmina
AU  - Smederevac-Lalić, Marija
AU  - Lenhardt, Mirjana
AU  - Hegediš, Aleksandar
PY  - 2018
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1707
AB  - Crni američki patuljasti som Ameiurus melas (Rafinesque, 1820) je jedna od najzastupljenijih
i najuspešnijih alohtonih vrsta riba koja naseljava kopnene vode Evrope. Istraživanja
koja su sprovedena u proteklih nekoliko godina ukazuju na to da je ovo dominantna
invazivna vrsta i u mnogim kopnenim vodama u Srbiji, uključujući i Savsko jezero (Jaćimović,
2015).
Zdravstveno stanje populacije crnog američkog patuljastog soma u Savskom jezeru procenjeno
je na osnovu analize prevalencije i intenziteta parazitiranosti kod 2349 jedinki u
uzorcima prikupljenim tokom 2011. i 2012. godine. Prevalencija parazitiranosti predstavljena
je kao broj zaraženih jedinki, tj. procentualni udeo zaraženih jedinki, dok je intenzitet
parazitiranosti predstavljen kao broj parazita u svakoj analiziranoj jedinki.
Osim kod jedne jedinke kod koje je nađena cista Trematoda, svi uočeni endoparaziti
pripadali su razdelu Nematoda. Najverovatnije se radilo o vrsti Philometra rischta. Zdravstveno
stanje populacije tokom 2012. godine bilo je znatno bolje u odnosu na 2011. godinu.
Jedinke starosti 3+ bile su najzaraženije endoparazitima, kako u svakoj pojedinačnoj godini,
tako i u celom uzorku. Iako bi se moglo očekivati da nezaražene jedinke imaju veće
vrednosti Fultonovog faktora kondicije (K) u poređenju sa zaraženim, rezultati istraživanja
u Savkom jezeru pokazali su da takva pravilnost ne postoji.
PB  - University of Belgrade - Faculty of Agriculture
C3  - VIII International conference “Water & Fish”
T1  - Health status of the black bullhead population (Ameiurus melas) in Sava Lake
T1  - ZDRAVSTVENO STANJE POPULACIJE CRNOG AMERIČKOG PATULJASTOG SOMA (AMEIURUS MELAS) U SAVSKOM JEZERU
EP  - 180
SP  - 175
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_1707
ER  - 

@conference{
author = "Jaćimović, Milica and Krpo-Ćetković, Jasmina and Smederevac-Lalić, Marija and Lenhardt, Mirjana and Hegediš, Aleksandar",
year = "2018",
abstract = "Crni američki patuljasti som Ameiurus melas (Rafinesque, 1820) je jedna od najzastupljenijih
i najuspešnijih alohtonih vrsta riba koja naseljava kopnene vode Evrope. Istraživanja
koja su sprovedena u proteklih nekoliko godina ukazuju na to da je ovo dominantna
invazivna vrsta i u mnogim kopnenim vodama u Srbiji, uključujući i Savsko jezero (Jaćimović,
2015).
Zdravstveno stanje populacije crnog američkog patuljastog soma u Savskom jezeru procenjeno
je na osnovu analize prevalencije i intenziteta parazitiranosti kod 2349 jedinki u
uzorcima prikupljenim tokom 2011. i 2012. godine. Prevalencija parazitiranosti predstavljena
je kao broj zaraženih jedinki, tj. procentualni udeo zaraženih jedinki, dok je intenzitet
parazitiranosti predstavljen kao broj parazita u svakoj analiziranoj jedinki.
Osim kod jedne jedinke kod koje je nađena cista Trematoda, svi uočeni endoparaziti
pripadali su razdelu Nematoda. Najverovatnije se radilo o vrsti Philometra rischta. Zdravstveno
stanje populacije tokom 2012. godine bilo je znatno bolje u odnosu na 2011. godinu.
Jedinke starosti 3+ bile su najzaraženije endoparazitima, kako u svakoj pojedinačnoj godini,
tako i u celom uzorku. Iako bi se moglo očekivati da nezaražene jedinke imaju veće
vrednosti Fultonovog faktora kondicije (K) u poređenju sa zaraženim, rezultati istraživanja
u Savkom jezeru pokazali su da takva pravilnost ne postoji.",
publisher = "University of Belgrade - Faculty of Agriculture",
journal = "VIII International conference “Water & Fish”",
title = "Health status of the black bullhead population (Ameiurus melas) in Sava Lake, ZDRAVSTVENO STANJE POPULACIJE CRNOG AMERIČKOG PATULJASTOG SOMA (AMEIURUS MELAS) U SAVSKOM JEZERU",
pages = "180-175",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_1707"
}

Jaćimović, M., Krpo-Ćetković, J., Smederevac-Lalić, M., Lenhardt, M.,& Hegediš, A.. (2018). Health status of the black bullhead population (Ameiurus melas) in Sava Lake. in VIII International conference “Water & Fish”
University of Belgrade - Faculty of Agriculture., 175-180.
https://hdl.handle.net/21.15107/rcub_rimsi_1707

Jaćimović M, Krpo-Ćetković J, Smederevac-Lalić M, Lenhardt M, Hegediš A. Health status of the black bullhead population (Ameiurus melas) in Sava Lake. in VIII International conference “Water & Fish”. 2018;:175-180.
https://hdl.handle.net/21.15107/rcub_rimsi_1707 .

Jaćimović, Milica, Krpo-Ćetković, Jasmina, Smederevac-Lalić, Marija, Lenhardt, Mirjana, Hegediš, Aleksandar, "Health status of the black bullhead population (Ameiurus melas) in Sava Lake" in VIII International conference “Water & Fish” (2018):175-180,
https://hdl.handle.net/21.15107/rcub_rimsi_1707 .

TY  - CONF
AU  - Jaćimović, Milica
AU  - Krpo-Ćetković, Jasmina
AU  - Lenhardt, Mirjana
AU  - Hegediš, Aleksandar
PY  - 2016
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/3111
AB  - The black bullhead (Ameiurus melas Rafinesque, 1820) is one of the most abundant and successful non-native
fish species in European freshwaters. Recent studies indicate that it is also one of the most dominant invasive fish
species in Serbian waters.
The aim of this research was to determine feeding habits of the black bullhead in Lake Sava, as it is known that this
species may negatively affect the native fauna through predation or competition for food/space.
Black bullhead samples were collected monthly from 2009 to 2012, for four days in a row. Gastro-intestinal contents were analyzed in 2349 specimens. The analysis was done macroscopically, where possible, or under a binocular microscope. Prey categories were identified to the lowest possible taxonomic level. For the diet analysis, we used
the following indices: the vacuity index, frequency of occurrence, numerical abundance, and prominence value. In
addition, the seasonal trophic niche breadth was calculated according to the Shannon’s diversity index.
Vacuity index ranged between 72.86% and 100%. The diet spectrum consisted of 14 different prey categories from
five groups: Mollusca, Crustacea, Insecta, Teleostei, and plants. Fish were the main prey in all seasons, followed by
aquatic invertebrates. Plant material and terrestrial insects were used as food in relatively small quantities. Fish-egg
predation was also detected. Our research confirmed that this species is an opportunistic generalist, foraging on the
most abundant and available prey. Ontogenetic diet shift was also detected. The lowest value of trophic diversity was
found in the largest black bullheads, while the highest was found in the medium sized individuals. The widest niche
breadth was recorded in the spring of 2011.
PB  - University of Zagreb, Faculty of Agriculture
C3  - FINS II Conference, Book of Abstracts
T1  - Feeding habits of the invasive non-native black bullhead Ameiurus melas in Lake Sava (Serbia)
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_3111
ER  - 

@conference{
author = "Jaćimović, Milica and Krpo-Ćetković, Jasmina and Lenhardt, Mirjana and Hegediš, Aleksandar",
year = "2016",
abstract = "The black bullhead (Ameiurus melas Rafinesque, 1820) is one of the most abundant and successful non-native
fish species in European freshwaters. Recent studies indicate that it is also one of the most dominant invasive fish
species in Serbian waters.
The aim of this research was to determine feeding habits of the black bullhead in Lake Sava, as it is known that this
species may negatively affect the native fauna through predation or competition for food/space.
Black bullhead samples were collected monthly from 2009 to 2012, for four days in a row. Gastro-intestinal contents were analyzed in 2349 specimens. The analysis was done macroscopically, where possible, or under a binocular microscope. Prey categories were identified to the lowest possible taxonomic level. For the diet analysis, we used
the following indices: the vacuity index, frequency of occurrence, numerical abundance, and prominence value. In
addition, the seasonal trophic niche breadth was calculated according to the Shannon’s diversity index.
Vacuity index ranged between 72.86% and 100%. The diet spectrum consisted of 14 different prey categories from
five groups: Mollusca, Crustacea, Insecta, Teleostei, and plants. Fish were the main prey in all seasons, followed by
aquatic invertebrates. Plant material and terrestrial insects were used as food in relatively small quantities. Fish-egg
predation was also detected. Our research confirmed that this species is an opportunistic generalist, foraging on the
most abundant and available prey. Ontogenetic diet shift was also detected. The lowest value of trophic diversity was
found in the largest black bullheads, while the highest was found in the medium sized individuals. The widest niche
breadth was recorded in the spring of 2011.",
publisher = "University of Zagreb, Faculty of Agriculture",
journal = "FINS II Conference, Book of Abstracts",
title = "Feeding habits of the invasive non-native black bullhead Ameiurus melas in Lake Sava (Serbia)",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_3111"
}

Jaćimović, M., Krpo-Ćetković, J., Lenhardt, M.,& Hegediš, A.. (2016). Feeding habits of the invasive non-native black bullhead Ameiurus melas in Lake Sava (Serbia). in FINS II Conference, Book of Abstracts
University of Zagreb, Faculty of Agriculture..
https://hdl.handle.net/21.15107/rcub_rimsi_3111

Jaćimović M, Krpo-Ćetković J, Lenhardt M, Hegediš A. Feeding habits of the invasive non-native black bullhead Ameiurus melas in Lake Sava (Serbia). in FINS II Conference, Book of Abstracts. 2016;.
https://hdl.handle.net/21.15107/rcub_rimsi_3111 .

Jaćimović, Milica, Krpo-Ćetković, Jasmina, Lenhardt, Mirjana, Hegediš, Aleksandar, "Feeding habits of the invasive non-native black bullhead Ameiurus melas in Lake Sava (Serbia)" in FINS II Conference, Book of Abstracts (2016),
https://hdl.handle.net/21.15107/rcub_rimsi_3111 .

TY  - CONF
AU  - Subotić, Srđan
AU  - Višnjić Jeftić, Željka
AU  - Spasić, Slađana
AU  - Hegediš, Aleksandar
AU  - Krpo-Ćetković, Jasmina
AU  - Lenhardt, Mirjana
PY  - 2015
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2395
PB  - Faculty of Agriculture, Belgrade, Srbija
C3  - 7th International Conference “Water & Fish”.Faculty of Agriculture, Belgrade, Serbia
T1  - Element concentrations in two fish species with different habitat and feeding preferences (carp and burbot) in the Danube river near Belgrade
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_2395
ER  - 

@conference{
author = "Subotić, Srđan and Višnjić Jeftić, Željka and Spasić, Slađana and Hegediš, Aleksandar and Krpo-Ćetković, Jasmina and Lenhardt, Mirjana",
year = "2015",
publisher = "Faculty of Agriculture, Belgrade, Srbija",
journal = "7th International Conference “Water & Fish”.Faculty of Agriculture, Belgrade, Serbia",
title = "Element concentrations in two fish species with different habitat and feeding preferences (carp and burbot) in the Danube river near Belgrade",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_2395"
}

Subotić, S., Višnjić Jeftić, Ž., Spasić, S., Hegediš, A., Krpo-Ćetković, J.,& Lenhardt, M.. (2015). Element concentrations in two fish species with different habitat and feeding preferences (carp and burbot) in the Danube river near Belgrade. in 7th International Conference “Water & Fish”.Faculty of Agriculture, Belgrade, Serbia
Faculty of Agriculture, Belgrade, Srbija..
https://hdl.handle.net/21.15107/rcub_rimsi_2395

Subotić S, Višnjić Jeftić Ž, Spasić S, Hegediš A, Krpo-Ćetković J, Lenhardt M. Element concentrations in two fish species with different habitat and feeding preferences (carp and burbot) in the Danube river near Belgrade. in 7th International Conference “Water & Fish”.Faculty of Agriculture, Belgrade, Serbia. 2015;.
https://hdl.handle.net/21.15107/rcub_rimsi_2395 .

Subotić, Srđan, Višnjić Jeftić, Željka, Spasić, Slađana, Hegediš, Aleksandar, Krpo-Ćetković, Jasmina, Lenhardt, Mirjana, "Element concentrations in two fish species with different habitat and feeding preferences (carp and burbot) in the Danube river near Belgrade" in 7th International Conference “Water & Fish”.Faculty of Agriculture, Belgrade, Serbia (2015),
https://hdl.handle.net/21.15107/rcub_rimsi_2395 .

TY  - JOUR
AU  - Mićković, Branislav
AU  - Nikčević, Miroslav
AU  - Hegediš, Aleksandar
AU  - Regner, S.
AU  - Gačić, Zoran
AU  - Krpo Ćetković, Jasmina
PY  - 2010
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2588
PB  - Archives of Biological Sciences
T2  - Archives of Biological Sciences
T1  - Mullet Fry (Mugilidae) in coastal waters of montenegro, their spatial distribution and migration phenology
EP  - 114
IS  - 1
SP  - 107
VL  - 62
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_2588
ER  - 

@article{
author = "Mićković, Branislav and Nikčević, Miroslav and Hegediš, Aleksandar and Regner, S. and Gačić, Zoran and Krpo Ćetković, Jasmina",
year = "2010",
publisher = "Archives of Biological Sciences",
journal = "Archives of Biological Sciences",
title = "Mullet Fry (Mugilidae) in coastal waters of montenegro, their spatial distribution and migration phenology",
pages = "114-107",
number = "1",
volume = "62",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_2588"
}

Mićković, B., Nikčević, M., Hegediš, A., Regner, S., Gačić, Z.,& Krpo Ćetković, J.. (2010). Mullet Fry (Mugilidae) in coastal waters of montenegro, their spatial distribution and migration phenology. in Archives of Biological Sciences
Archives of Biological Sciences., 62(1), 107-114.
https://hdl.handle.net/21.15107/rcub_rimsi_2588

Mićković B, Nikčević M, Hegediš A, Regner S, Gačić Z, Krpo Ćetković J. Mullet Fry (Mugilidae) in coastal waters of montenegro, their spatial distribution and migration phenology. in Archives of Biological Sciences. 2010;62(1):107-114.
https://hdl.handle.net/21.15107/rcub_rimsi_2588 .

Mićković, Branislav, Nikčević, Miroslav, Hegediš, Aleksandar, Regner, S., Gačić, Zoran, Krpo Ćetković, Jasmina, "Mullet Fry (Mugilidae) in coastal waters of montenegro, their spatial distribution and migration phenology" in Archives of Biological Sciences, 62, no. 1 (2010):107-114,
https://hdl.handle.net/21.15107/rcub_rimsi_2588 .