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  - Smederevac-Lalić, Marija
AU  - Regner, Slobodan
AU  - Hegediš, Aleksandar
AU  - Kalauzi, Aleksandar
AU  - Višnjić Jeftić, Željka
AU  - Jaćimović, Milica
AU  - Cvijanović, Gorčin
AU  - Lenhardt, Mirjana
PY  - 2011
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/3082
PB  - Poljoprivredni fakultet Univerziteta u Beogradu, Srbija
C3  - Proceedings, V International Conference “Aquaculture & Fishery”
T1  - COMMERCIAL FISHERIES ON DANUBE IN SERBIA
EP  - 194
SP  - 189
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_3082
ER  - 

@conference{
author = "Smederevac-Lalić, Marija and Regner, Slobodan and Hegediš, Aleksandar and Kalauzi, Aleksandar and Višnjić Jeftić, Željka and Jaćimović, Milica and Cvijanović, Gorčin and Lenhardt, Mirjana",
year = "2011",
publisher = "Poljoprivredni fakultet Univerziteta u Beogradu, Srbija",
journal = "Proceedings, V International Conference “Aquaculture & Fishery”",
title = "COMMERCIAL FISHERIES ON DANUBE IN SERBIA",
pages = "194-189",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_3082"
}

Smederevac-Lalić, M., Regner, S., Hegediš, A., Kalauzi, A., Višnjić Jeftić, Ž., Jaćimović, M., Cvijanović, G.,& Lenhardt, M.. (2011). COMMERCIAL FISHERIES ON DANUBE IN SERBIA. in Proceedings, V International Conference “Aquaculture & Fishery”
Poljoprivredni fakultet Univerziteta u Beogradu, Srbija., 189-194.
https://hdl.handle.net/21.15107/rcub_rimsi_3082

Smederevac-Lalić M, Regner S, Hegediš A, Kalauzi A, Višnjić Jeftić Ž, Jaćimović M, Cvijanović G, Lenhardt M. COMMERCIAL FISHERIES ON DANUBE IN SERBIA. in Proceedings, V International Conference “Aquaculture & Fishery”. 2011;:189-194.
https://hdl.handle.net/21.15107/rcub_rimsi_3082 .

Smederevac-Lalić, Marija, Regner, Slobodan, Hegediš, Aleksandar, Kalauzi, Aleksandar, Višnjić Jeftić, Željka, Jaćimović, Milica, Cvijanović, Gorčin, Lenhardt, Mirjana, "COMMERCIAL FISHERIES ON DANUBE IN SERBIA" in Proceedings, V International Conference “Aquaculture & Fishery” (2011):189-194,
https://hdl.handle.net/21.15107/rcub_rimsi_3082 .