TY  - JOUR
AU  - Smederevac-Lalić, Marija
AU  - Cvijanović, Gorčin
AU  - Nikolić, Dušan
AU  - Lenhardt, Mirjana
AU  - Hont, Stefan
AU  - Paraschiv, Marian
AU  - Iani, Marian I.
AU  - Baktoft, Henrik
AU  - Gjelland, Øystein Karl
AU  - Redeker, Marq
AU  - Gatzweiler, Julia
AU  - Milovanović, Miodrag
AU  - Cvijanović, Nevena
AU  - Hödl, Edith
AU  - Masliah-Gilkarov, Hélène
AU  - Gessner, Jörn
AU  - Thorstad, Eva
AU  - Økland, Finn
PY  - 2023
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/3182
AB  - European rivers are obstructed by more than one million barriers that have resulted in excessive loss of river continuity. On the main course of the Danube River there are 83 longitudinal continuity interruptions, out of which 65 dams are used for hydropower (ICPDR 2022a). The Iron Gate Hydropower and Navigation System is one of the largest river engineering projects undertaken in Europe, with the dams mainly built to provide hydropower and flood protection, and to facilitate navigation along the Danube. These infrastructures represent introduced barriers to fish migration. Hence, ensuring passage opportunities for fish at the Iron Gate dams is considered to be of major importance for the conservation of migratory fish populations in the Danube River basin. Restoration of river continuity at these sites would reopen an additional 900 km for migration up to the Gabčikovo dam, providing suitable habitats and spawning grounds along the Danube and its tributaries. Knowledge about fish behavior and movements in the vicinity of these river infrastructures is required to build effective up- and downstream passage facilities to allow the migration of fish species. To gain insight in the approach routes and aggregation areas a refined approach to acoustic telemetry is employed to support migration facilitation.
PB  - International Association for Danube Research (IAD)
T2  - Danube News, International Association for Danube Research (IAD)
T1  - WEPASS Project - Making the Iron Gate Dams passable for migratory fish
EP  - 8
IS  - 48
SP  - 2
VL  - 25
DO  - 10.5281/zenodo.10257946
ER  - 

@article{
author = "Smederevac-Lalić, Marija and Cvijanović, Gorčin and Nikolić, Dušan and Lenhardt, Mirjana and Hont, Stefan and Paraschiv, Marian and Iani, Marian I. and Baktoft, Henrik and Gjelland, Øystein Karl and Redeker, Marq and Gatzweiler, Julia and Milovanović, Miodrag and Cvijanović, Nevena and Hödl, Edith and Masliah-Gilkarov, Hélène and Gessner, Jörn and Thorstad, Eva and Økland, Finn",
year = "2023",
abstract = "European rivers are obstructed by more than one million barriers that have resulted in excessive loss of river continuity. On the main course of the Danube River there are 83 longitudinal continuity interruptions, out of which 65 dams are used for hydropower (ICPDR 2022a). The Iron Gate Hydropower and Navigation System is one of the largest river engineering projects undertaken in Europe, with the dams mainly built to provide hydropower and flood protection, and to facilitate navigation along the Danube. These infrastructures represent introduced barriers to fish migration. Hence, ensuring passage opportunities for fish at the Iron Gate dams is considered to be of major importance for the conservation of migratory fish populations in the Danube River basin. Restoration of river continuity at these sites would reopen an additional 900 km for migration up to the Gabčikovo dam, providing suitable habitats and spawning grounds along the Danube and its tributaries. Knowledge about fish behavior and movements in the vicinity of these river infrastructures is required to build effective up- and downstream passage facilities to allow the migration of fish species. To gain insight in the approach routes and aggregation areas a refined approach to acoustic telemetry is employed to support migration facilitation.",
publisher = "International Association for Danube Research (IAD)",
journal = "Danube News, International Association for Danube Research (IAD)",
title = "WEPASS Project - Making the Iron Gate Dams passable for migratory fish",
pages = "8-2",
number = "48",
volume = "25",
doi = "10.5281/zenodo.10257946"
}

Smederevac-Lalić, M., Cvijanović, G., Nikolić, D., Lenhardt, M., Hont, S., Paraschiv, M., Iani, M. I., Baktoft, H., Gjelland, Ø. K., Redeker, M., Gatzweiler, J., Milovanović, M., Cvijanović, N., Hödl, E., Masliah-Gilkarov, H., Gessner, J., Thorstad, E.,& Økland, F.. (2023). WEPASS Project - Making the Iron Gate Dams passable for migratory fish. in Danube News, International Association for Danube Research (IAD)
International Association for Danube Research (IAD)., 25(48), 2-8.
https://doi.org/10.5281/zenodo.10257946

Smederevac-Lalić M, Cvijanović G, Nikolić D, Lenhardt M, Hont S, Paraschiv M, Iani MI, Baktoft H, Gjelland ØK, Redeker M, Gatzweiler J, Milovanović M, Cvijanović N, Hödl E, Masliah-Gilkarov H, Gessner J, Thorstad E, Økland F. WEPASS Project - Making the Iron Gate Dams passable for migratory fish. in Danube News, International Association for Danube Research (IAD). 2023;25(48):2-8.
doi:10.5281/zenodo.10257946 .

Smederevac-Lalić, Marija, Cvijanović, Gorčin, Nikolić, Dušan, Lenhardt, Mirjana, Hont, Stefan, Paraschiv, Marian, Iani, Marian I., Baktoft, Henrik, Gjelland, Øystein Karl, Redeker, Marq, Gatzweiler, Julia, Milovanović, Miodrag, Cvijanović, Nevena, Hödl, Edith, Masliah-Gilkarov, Hélène, Gessner, Jörn, Thorstad, Eva, Økland, Finn, "WEPASS Project - Making the Iron Gate Dams passable for migratory fish" in Danube News, International Association for Danube Research (IAD), 25, no. 48 (2023):2-8,
https://doi.org/10.5281/zenodo.10257946 . .

TY  - CONF
AU  - Smederevac-Lalić, Marija
AU  - Cvijanović, Gorčin
AU  - Lenhardt, Mirjana
AU  - Nikolić, Dušan
AU  - Nikčević, Miroslav
AU  - Hont, Stefan
AU  - Paraschiv, Marian
AU  - Iani, Marian
AU  - Paterson, Rachel
AU  - Thorstad, Eva
AU  - Økland, Finn
PY  - 2023
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2701
AB  - River infrastructures, such as hydropower plants Iron Gate I (IG; rkm 943) and II (rkm 863) represent major obstructions to fish migration in the Danube River. Knowledge about fish behaviour and movements in the vicinity of major river structures is required to build effective fish passages to protect migratory fish species, with acoustic telemetry being an useful method for observing such behaviour. From autumn 2019 to the spring 2021, the movement of 185 fish (barbel Barbus barbus, nase Chondrostoma nasus, vimba bream Vimba vimba, asp Leuciscus aspius, Pontic shad Alosa immaculata, and carp Cyprinus carpio) were monitored in the Danube River upstream and downstream of the IG II dam using acoustic telemetry. The movements of tagged fish were recorded by a combination of automatic tracking of fish passing receivers deployed in the river and manual tracking by boat. Of the 101 fish released downstream of IG II, 48% moved upstream from their release site and were detected close to IG II. The remaining 84 tagged fish were released in the reservoir between IG I and II, with 49% of fish moving further upstream in the reservoir and 18% reaching IG I, while 48% of the tagged fish moved in a downstream direction and were recorded below IG II. No fish released downstream of IG II were detected in the reservoir between two dams, which indicates that the ship locks on either side of the river do not represent viable routes for upstream migration around IG II. There was also no clear pattern in which side of the river tagged fish preferred to move along. To conserve migratory fish species, dam management strategies that take into account the behaviour of fish around such structures is necessary. Acoustic telemetry can be used to inform and guide towards construction of the safe fish passage or adapt structures to improve the movement and fish migration.
PB  - BOKU Vienna, Austria
C3  - 5th Worlds Large Rivers Conference
T1  - Fish Migratory behaviour In proximity to the Iron Gate Dams
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_2701
ER  - 

@conference{
author = "Smederevac-Lalić, Marija and Cvijanović, Gorčin and Lenhardt, Mirjana and Nikolić, Dušan and Nikčević, Miroslav and Hont, Stefan and Paraschiv, Marian and Iani, Marian and Paterson, Rachel and Thorstad, Eva and Økland, Finn",
year = "2023",
abstract = "River infrastructures, such as hydropower plants Iron Gate I (IG; rkm 943) and II (rkm 863) represent major obstructions to fish migration in the Danube River. Knowledge about fish behaviour and movements in the vicinity of major river structures is required to build effective fish passages to protect migratory fish species, with acoustic telemetry being an useful method for observing such behaviour. From autumn 2019 to the spring 2021, the movement of 185 fish (barbel Barbus barbus, nase Chondrostoma nasus, vimba bream Vimba vimba, asp Leuciscus aspius, Pontic shad Alosa immaculata, and carp Cyprinus carpio) were monitored in the Danube River upstream and downstream of the IG II dam using acoustic telemetry. The movements of tagged fish were recorded by a combination of automatic tracking of fish passing receivers deployed in the river and manual tracking by boat. Of the 101 fish released downstream of IG II, 48% moved upstream from their release site and were detected close to IG II. The remaining 84 tagged fish were released in the reservoir between IG I and II, with 49% of fish moving further upstream in the reservoir and 18% reaching IG I, while 48% of the tagged fish moved in a downstream direction and were recorded below IG II. No fish released downstream of IG II were detected in the reservoir between two dams, which indicates that the ship locks on either side of the river do not represent viable routes for upstream migration around IG II. There was also no clear pattern in which side of the river tagged fish preferred to move along. To conserve migratory fish species, dam management strategies that take into account the behaviour of fish around such structures is necessary. Acoustic telemetry can be used to inform and guide towards construction of the safe fish passage or adapt structures to improve the movement and fish migration.",
publisher = "BOKU Vienna, Austria",
journal = "5th Worlds Large Rivers Conference",
title = "Fish Migratory behaviour In proximity to the Iron Gate Dams",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_2701"
}

Smederevac-Lalić, M., Cvijanović, G., Lenhardt, M., Nikolić, D., Nikčević, M., Hont, S., Paraschiv, M., Iani, M., Paterson, R., Thorstad, E.,& Økland, F.. (2023). Fish Migratory behaviour In proximity to the Iron Gate Dams. in 5th Worlds Large Rivers Conference
BOKU Vienna, Austria..
https://hdl.handle.net/21.15107/rcub_rimsi_2701

Smederevac-Lalić M, Cvijanović G, Lenhardt M, Nikolić D, Nikčević M, Hont S, Paraschiv M, Iani M, Paterson R, Thorstad E, Økland F. Fish Migratory behaviour In proximity to the Iron Gate Dams. in 5th Worlds Large Rivers Conference. 2023;.
https://hdl.handle.net/21.15107/rcub_rimsi_2701 .

Smederevac-Lalić, Marija, Cvijanović, Gorčin, Lenhardt, Mirjana, Nikolić, Dušan, Nikčević, Miroslav, Hont, Stefan, Paraschiv, Marian, Iani, Marian, Paterson, Rachel, Thorstad, Eva, Økland, Finn, "Fish Migratory behaviour In proximity to the Iron Gate Dams" in 5th Worlds Large Rivers Conference (2023),
https://hdl.handle.net/21.15107/rcub_rimsi_2701 .

TY  - CONF
AU  - Spasić, Slađana
AU  - Smederevac-Lalić, Marija
AU  - Lenhardt, Mirjana
AU  - Hont, Stefan
AU  - Paraschiv, Marian
AU  - Iani, I. Marian
AU  - Nichersu, Iulian
AU  - Trifanov, Cristian
AU  - Nikčević, Miroslav
AU  - Klimley, Abbott Peter
AU  - Suciu, Radu
PY  - 2022
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2829
AB  - In this study, the movements and behaviour of Wels catfish (Silurus glanis, Linnaeus, 1758) were
monitored during the different seasons when the water level in the river changed significantly. Wels
catfish was caught on the Danube River, rkm 863, and tagged with an ultrasonic transmitter.
Deployed Vemco receivers recorded detections of spatial movement between years 2015 and 2017.
Our telemetry data found relatively short movements within a maximum range (~12km), but as a
territorial species most of the time it was recorded by the two receivers, close to the Iron Gate dam
and location where it was caught. Circadian rhythm showed that in the summer period, nocturnal
activity is evident while during winter Wels catfish stayed most of the time at the same depth under
the water surface. Wels catfish changed depths during the autumn and spring when more activity
was recorded. The last signal received was during the winter 2017, which was period with the low
temperatures and ice cover on the Danube River. This research shows the value and importance of
installing coded acoustic transmitters in fish and monitoring their movement using a series of
autonomous receivers deployed in the Danube River. Research by telemetry can be used to better
understand fish behaviour and movements and to help improve large river management measures.
PB  - University in Banjaluka, Faculty of Technology
C3  - XIV Conference of Chemists, Technologists and Environmentalists of Republic of Srpska
T1  - Circadian activity of the Wels catfish (Silurus glanis) in the Danube River
SP  - 158
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_2829
ER  - 

@conference{
author = "Spasić, Slađana and Smederevac-Lalić, Marija and Lenhardt, Mirjana and Hont, Stefan and Paraschiv, Marian and Iani, I. Marian and Nichersu, Iulian and Trifanov, Cristian and Nikčević, Miroslav and Klimley, Abbott Peter and Suciu, Radu",
year = "2022",
abstract = "In this study, the movements and behaviour of Wels catfish (Silurus glanis, Linnaeus, 1758) were
monitored during the different seasons when the water level in the river changed significantly. Wels
catfish was caught on the Danube River, rkm 863, and tagged with an ultrasonic transmitter.
Deployed Vemco receivers recorded detections of spatial movement between years 2015 and 2017.
Our telemetry data found relatively short movements within a maximum range (~12km), but as a
territorial species most of the time it was recorded by the two receivers, close to the Iron Gate dam
and location where it was caught. Circadian rhythm showed that in the summer period, nocturnal
activity is evident while during winter Wels catfish stayed most of the time at the same depth under
the water surface. Wels catfish changed depths during the autumn and spring when more activity
was recorded. The last signal received was during the winter 2017, which was period with the low
temperatures and ice cover on the Danube River. This research shows the value and importance of
installing coded acoustic transmitters in fish and monitoring their movement using a series of
autonomous receivers deployed in the Danube River. Research by telemetry can be used to better
understand fish behaviour and movements and to help improve large river management measures.",
publisher = "University in Banjaluka, Faculty of Technology",
journal = "XIV Conference of Chemists, Technologists and Environmentalists of Republic of Srpska",
title = "Circadian activity of the Wels catfish (Silurus glanis) in the Danube River",
pages = "158",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_2829"
}

Spasić, S., Smederevac-Lalić, M., Lenhardt, M., Hont, S., Paraschiv, M., Iani, I. M., Nichersu, I., Trifanov, C., Nikčević, M., Klimley, A. P.,& Suciu, R.. (2022). Circadian activity of the Wels catfish (Silurus glanis) in the Danube River. in XIV Conference of Chemists, Technologists and Environmentalists of Republic of Srpska
University in Banjaluka, Faculty of Technology., 158.
https://hdl.handle.net/21.15107/rcub_rimsi_2829

Spasić S, Smederevac-Lalić M, Lenhardt M, Hont S, Paraschiv M, Iani IM, Nichersu I, Trifanov C, Nikčević M, Klimley AP, Suciu R. Circadian activity of the Wels catfish (Silurus glanis) in the Danube River. in XIV Conference of Chemists, Technologists and Environmentalists of Republic of Srpska. 2022;:158.
https://hdl.handle.net/21.15107/rcub_rimsi_2829 .

Spasić, Slađana, Smederevac-Lalić, Marija, Lenhardt, Mirjana, Hont, Stefan, Paraschiv, Marian, Iani, I. Marian, Nichersu, Iulian, Trifanov, Cristian, Nikčević, Miroslav, Klimley, Abbott Peter, Suciu, Radu, "Circadian activity of the Wels catfish (Silurus glanis) in the Danube River" in XIV Conference of Chemists, Technologists and Environmentalists of Republic of Srpska (2022):158,
https://hdl.handle.net/21.15107/rcub_rimsi_2829 .

TY  - CONF
AU  - Cvijanović, Gorčin
AU  - Smederevac-Lalić, Marija
AU  - Nikolić, Dušan
AU  - Paraschiv, Marian
AU  - Hont, Stefan
AU  - Iani, Marian I.
AU  - Lenhardt, Mirjana
PY  - 2022
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1672
AB  - Истраживање понашања риба током узводних миграција пружа информације које могу послужити као основа за доношење мера и програма заштите.1 У циљу проучавања миграција, 14 јединки скобаља и 8 јединки буцова је ухваћено стајаћим мрежама (димензија 30 m × 2 m, промера окаца 40-50 mm) у Дунаву низводно од бране Ђердап 2. Живе јединке су транспортоване до обале и пре оперативног захвата су анестезиране (96% етанол и уље каранфилића). Хирушким путем су у трбушној дупљи јединки постављени акустични одашиљачи Vemco V9P/V13P, а након опоравка транспортоване су и пуштене један километар узводно од бране Ђердап 2.2 Очитавање сигнала је рађено са 18 VR2W пријемника (10 је распоређено низводно од бране Ђердап 2, док је 8 било узводно), као и са мануелним пријемником (VR100). Било је 202.202 детекција скобаља, на 8 пријемника (5 низводно и 3 узводно од бране Ђердап 2), док је једна јединка детектована мануелним пријемником код бране Ђердап 1. Јединке буцова су детектоване 5.640 пута, на 5 пријемника (4 низводно и 1 узводно од бране Ђердап 2). После одређеног времена 66,7% скобаља је детектована низводно од бране Ђердап 2, док је 33,3% остало у језеру (само једна јединка је детектована код бране Ђердап 1), што указује на преференцу ка низводним миграцијама. Слично је и код буцова, где је 75% јединки након одређеног времена детектована низводно од бране Ђердап 2, док је 25% остало у језеру. Даља истраживања треба да покажу разлоге за уочене разлике у времену које јединке проводе у језеру.
PB  - Српско биолошко друштво
C3  - ТРЕЋИ КОНГРЕС БИОЛОГА СРБИЈЕ
T1  - Понашање скобаља (Chondrostoma nasus) и буцова (Leuciscus aspius) током узводних миграција након њихове транслокације између две бране на Ђердапу
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_1672
ER  - 

@conference{
author = "Cvijanović, Gorčin and Smederevac-Lalić, Marija and Nikolić, Dušan and Paraschiv, Marian and Hont, Stefan and Iani, Marian I. and Lenhardt, Mirjana",
year = "2022",
abstract = "Истраживање понашања риба током узводних миграција пружа информације које могу послужити као основа за доношење мера и програма заштите.1 У циљу проучавања миграција, 14 јединки скобаља и 8 јединки буцова је ухваћено стајаћим мрежама (димензија 30 m × 2 m, промера окаца 40-50 mm) у Дунаву низводно од бране Ђердап 2. Живе јединке су транспортоване до обале и пре оперативног захвата су анестезиране (96% етанол и уље каранфилића). Хирушким путем су у трбушној дупљи јединки постављени акустични одашиљачи Vemco V9P/V13P, а након опоравка транспортоване су и пуштене један километар узводно од бране Ђердап 2.2 Очитавање сигнала је рађено са 18 VR2W пријемника (10 је распоређено низводно од бране Ђердап 2, док је 8 било узводно), као и са мануелним пријемником (VR100). Било је 202.202 детекција скобаља, на 8 пријемника (5 низводно и 3 узводно од бране Ђердап 2), док је једна јединка детектована мануелним пријемником код бране Ђердап 1. Јединке буцова су детектоване 5.640 пута, на 5 пријемника (4 низводно и 1 узводно од бране Ђердап 2). После одређеног времена 66,7% скобаља је детектована низводно од бране Ђердап 2, док је 33,3% остало у језеру (само једна јединка је детектована код бране Ђердап 1), што указује на преференцу ка низводним миграцијама. Слично је и код буцова, где је 75% јединки након одређеног времена детектована низводно од бране Ђердап 2, док је 25% остало у језеру. Даља истраживања треба да покажу разлоге за уочене разлике у времену које јединке проводе у језеру.",
publisher = "Српско биолошко друштво",
journal = "ТРЕЋИ КОНГРЕС БИОЛОГА СРБИЈЕ",
title = "Понашање скобаља (Chondrostoma nasus) и буцова (Leuciscus aspius) током узводних миграција након њихове транслокације између две бране на Ђердапу",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_1672"
}

Cvijanović, G., Smederevac-Lalić, M., Nikolić, D., Paraschiv, M., Hont, S., Iani, M. I.,& Lenhardt, M.. (2022). Понашање скобаља (Chondrostoma nasus) и буцова (Leuciscus aspius) током узводних миграција након њихове транслокације између две бране на Ђердапу. in ТРЕЋИ КОНГРЕС БИОЛОГА СРБИЈЕ
Српско биолошко друштво..
https://hdl.handle.net/21.15107/rcub_rimsi_1672

Cvijanović G, Smederevac-Lalić M, Nikolić D, Paraschiv M, Hont S, Iani MI, Lenhardt M. Понашање скобаља (Chondrostoma nasus) и буцова (Leuciscus aspius) током узводних миграција након њихове транслокације између две бране на Ђердапу. in ТРЕЋИ КОНГРЕС БИОЛОГА СРБИЈЕ. 2022;.
https://hdl.handle.net/21.15107/rcub_rimsi_1672 .

Cvijanović, Gorčin, Smederevac-Lalić, Marija, Nikolić, Dušan, Paraschiv, Marian, Hont, Stefan, Iani, Marian I., Lenhardt, Mirjana, "Понашање скобаља (Chondrostoma nasus) и буцова (Leuciscus aspius) током узводних миграција након њихове транслокације између две бране на Ђердапу" in ТРЕЋИ КОНГРЕС БИОЛОГА СРБИЈЕ (2022),
https://hdl.handle.net/21.15107/rcub_rimsi_1672 .

TY  - JOUR
AU  - Hont, Stefan
AU  - Paraschiv, Marian
AU  - Iani, Marian I.
AU  - Cvijanović, Gorčin
AU  - Smederevac-Lalić, Marija
PY  - 2022
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1787
AB  - Water temperature plays an important role in the fish life cycle, and have a direct
impact over fish species movement behavior, migration, feeding and reproduction. The impact
might be different between the rivers because of hydro morphological factors that are specific
for each watercourse (sediments, water conductivity, turbidity, total suspended solids etc.). The study focuses on 3 fish species, Vimba bream (Vimba vimba), Common nase (Chondrostoma nasus), Common barbel (Barbus barbus). Total number of 43 specimens from these three fish species were caught, tagged and released in Danube River upstream and downstream the Iron Gates II dam and tracked using acoustic telemetry equipment. The fish movement was followed for eight months, from September 2019 to April 2020. In this time period, data from 26 Vimba bream, 13 Common nase and 4 Common barbel movement were collected. Acoustic telemetry data was used to evaluate fish movement in relation with the water temperature variation of the Danube River. In all three species studied, was revealed a decrease in the number of detections in the moment when the water temperature drop below 12 °C,
PB  - Danube Delta National Institute for Research and Development - Tulcea
T2  - Scientific annals of the Danube Delta Institute
T1  - Fish movement in Relation to water temperature fluctuations in the Lower Danube river Iron gate II dam area
VL  - 27
DO  - 10.7427/ddi.27.05
ER  - 

@article{
author = "Hont, Stefan and Paraschiv, Marian and Iani, Marian I. and Cvijanović, Gorčin and Smederevac-Lalić, Marija",
year = "2022",
abstract = "Water temperature plays an important role in the fish life cycle, and have a direct
impact over fish species movement behavior, migration, feeding and reproduction. The impact
might be different between the rivers because of hydro morphological factors that are specific
for each watercourse (sediments, water conductivity, turbidity, total suspended solids etc.). The study focuses on 3 fish species, Vimba bream (Vimba vimba), Common nase (Chondrostoma nasus), Common barbel (Barbus barbus). Total number of 43 specimens from these three fish species were caught, tagged and released in Danube River upstream and downstream the Iron Gates II dam and tracked using acoustic telemetry equipment. The fish movement was followed for eight months, from September 2019 to April 2020. In this time period, data from 26 Vimba bream, 13 Common nase and 4 Common barbel movement were collected. Acoustic telemetry data was used to evaluate fish movement in relation with the water temperature variation of the Danube River. In all three species studied, was revealed a decrease in the number of detections in the moment when the water temperature drop below 12 °C,",
publisher = "Danube Delta National Institute for Research and Development - Tulcea",
journal = "Scientific annals of the Danube Delta Institute",
title = "Fish movement in Relation to water temperature fluctuations in the Lower Danube river Iron gate II dam area",
volume = "27",
doi = "10.7427/ddi.27.05"
}

Hont, S., Paraschiv, M., Iani, M. I., Cvijanović, G.,& Smederevac-Lalić, M.. (2022). Fish movement in Relation to water temperature fluctuations in the Lower Danube river Iron gate II dam area. in Scientific annals of the Danube Delta Institute
Danube Delta National Institute for Research and Development - Tulcea., 27.
https://doi.org/10.7427/ddi.27.05

Hont S, Paraschiv M, Iani MI, Cvijanović G, Smederevac-Lalić M. Fish movement in Relation to water temperature fluctuations in the Lower Danube river Iron gate II dam area. in Scientific annals of the Danube Delta Institute. 2022;27.
doi:10.7427/ddi.27.05 .

Hont, Stefan, Paraschiv, Marian, Iani, Marian I., Cvijanović, Gorčin, Smederevac-Lalić, Marija, "Fish movement in Relation to water temperature fluctuations in the Lower Danube river Iron gate II dam area" in Scientific annals of the Danube Delta Institute, 27 (2022),
https://doi.org/10.7427/ddi.27.05 . .

TY  - CONF
AU  - Hont, Stefan
AU  - Paraschiv, Marian
AU  - Økland, Finn
AU  - Cvijanović, Gorčin
AU  - Smederevac-Lalić, Marija
AU  - Lenhardt, Mirjana
AU  - Hoedl, Edith
AU  - Iani, Marian I.
PY  - 2021-09
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2892
AB  - The dam’s construction without fish passes had a major impact, obstructing migratory fish populations from moving between different parts of the river systems and utilizing their key habitats. Fish species and fish populations are depending on long migrations are most seriously affected by river fragmentation. Building well-functioning fish passage systems for migratory fish species at Iron Gate I (rkm 943) and Iron Gate II (rkm 863), is crucial for strengthening and re-establishing Danube’s River migratory fish populations. Between March and May 2021, 112 fish specimens were captured downstream Iron Gate II dam. All the fish was previously tagged with 69 KHz ultrasonic transmitters and released upstream Iron Gate II dam reservoir (53 fish) and downstream Iron Gate II dam (59 fish). Some of the acoustic transmitters are equipped with depth sensors, which provide information of water depths used by fish. Fish movements were recorded by a network of 18 ultrasonic automatic Vemco VR2w receivers (10 downstream the Iron Gate II dam and Gogosu branch, 6 in the IG II lake and 2 receivers at the Iron Gate I dam) with a 15 month battery life, positioned in Danube River. Downloading and interpreting recorded data by these receivers will be an important starting point for "We Pass 2" project that will begin in fall of 2021, when will be realized high resolution recordings of 3D fish movements, for finding the best technical solution for their passing upstream or downstream of dams.
PB  - Danube Delta National Institute for Research and Development, Babadag Street 165, 820112 Tulcea, Romania
C3  - 28th scientific symposium "Deltas & Wetlands DDNI International Symposium
T1  - Preliminary results on the assessment of Danube River fish species migration behavior in relation to Iron Gate I and II dam using acoustic telemetry equipment
VL  - 28
DO  - 10.13140/RG.2.2.11524.40324
ER  - 

@conference{
author = "Hont, Stefan and Paraschiv, Marian and Økland, Finn and Cvijanović, Gorčin and Smederevac-Lalić, Marija and Lenhardt, Mirjana and Hoedl, Edith and Iani, Marian I.",
year = "2021-09",
abstract = "The dam’s construction without fish passes had a major impact, obstructing migratory fish populations from moving between different parts of the river systems and utilizing their key habitats. Fish species and fish populations are depending on long migrations are most seriously affected by river fragmentation. Building well-functioning fish passage systems for migratory fish species at Iron Gate I (rkm 943) and Iron Gate II (rkm 863), is crucial for strengthening and re-establishing Danube’s River migratory fish populations. Between March and May 2021, 112 fish specimens were captured downstream Iron Gate II dam. All the fish was previously tagged with 69 KHz ultrasonic transmitters and released upstream Iron Gate II dam reservoir (53 fish) and downstream Iron Gate II dam (59 fish). Some of the acoustic transmitters are equipped with depth sensors, which provide information of water depths used by fish. Fish movements were recorded by a network of 18 ultrasonic automatic Vemco VR2w receivers (10 downstream the Iron Gate II dam and Gogosu branch, 6 in the IG II lake and 2 receivers at the Iron Gate I dam) with a 15 month battery life, positioned in Danube River. Downloading and interpreting recorded data by these receivers will be an important starting point for "We Pass 2" project that will begin in fall of 2021, when will be realized high resolution recordings of 3D fish movements, for finding the best technical solution for their passing upstream or downstream of dams.",
publisher = "Danube Delta National Institute for Research and Development, Babadag Street 165, 820112 Tulcea, Romania",
journal = "28th scientific symposium "Deltas & Wetlands DDNI International Symposium",
title = "Preliminary results on the assessment of Danube River fish species migration behavior in relation to Iron Gate I and II dam using acoustic telemetry equipment",
volume = "28",
doi = "10.13140/RG.2.2.11524.40324"
}

Hont, S., Paraschiv, M., Økland, F., Cvijanović, G., Smederevac-Lalić, M., Lenhardt, M., Hoedl, E.,& Iani, M. I.. (2021-09). Preliminary results on the assessment of Danube River fish species migration behavior in relation to Iron Gate I and II dam using acoustic telemetry equipment. in 28th scientific symposium "Deltas & Wetlands DDNI International Symposium
Danube Delta National Institute for Research and Development, Babadag Street 165, 820112 Tulcea, Romania., 28.
https://doi.org/10.13140/RG.2.2.11524.40324

Hont S, Paraschiv M, Økland F, Cvijanović G, Smederevac-Lalić M, Lenhardt M, Hoedl E, Iani MI. Preliminary results on the assessment of Danube River fish species migration behavior in relation to Iron Gate I and II dam using acoustic telemetry equipment. in 28th scientific symposium "Deltas & Wetlands DDNI International Symposium. 2021;28.
doi:10.13140/RG.2.2.11524.40324 .

Hont, Stefan, Paraschiv, Marian, Økland, Finn, Cvijanović, Gorčin, Smederevac-Lalić, Marija, Lenhardt, Mirjana, Hoedl, Edith, Iani, Marian I., "Preliminary results on the assessment of Danube River fish species migration behavior in relation to Iron Gate I and II dam using acoustic telemetry equipment" in 28th scientific symposium "Deltas & Wetlands DDNI International Symposium, 28 (2021-09),
https://doi.org/10.13140/RG.2.2.11524.40324 . .

TY  - CONF
AU  - Smederevac-Lalić, Marija
AU  - Lenhardt, Mirjana
AU  - Spasić, Slađana
AU  - Hont, Stefan
AU  - Paraschiv, Marian
AU  - Iani, Marian I.
AU  - NICHERSU, IULIAN
AU  - Trifanov, Cristian
AU  - Nikčević, Miroslav
AU  - Klimley, Peter A.
AU  - Suciu, Radu
PY  - 2021
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1658
AB  - Wels catfish (Silurus glanis, Linnaeus, 1758) is one of the most targeted species for recreational and commercial fishing in the Danube River, even though studies of behavior and movement patterns of Wels catfish in the Danube are rare. Wels catfish was caught downstream of Iron Gate II hydropower dam and tagged with an ultrasonic transmitter (Vemco Ltd, V16TP). Nine autonomous receivers (Vemco Ltd, VR 2W) recorded detections of spatial movement downstream of Iron Gate II dam between Serbia and Romania for almost two years, between the years 2015 and 2017. Our telemetry data found that Wels catfish exhibit relatively short movements within a maximum range (≈ 12 km), but as a territorial species most of the time it was recorded by the two receivers, close to the Iron Gate dam and location where it was caught. The longest displacement from the preferable place under Iron Gate II dam was migration to Romanian ship lock and turbines located in the right arm of the Danube River. Location under the river dam is already recognized as a place of aggregation of the fish and thus preference of predatory catfish is strongly connected with food availability. Our data revealed that dam and ship lock blocked further migration of this fish. The last signal received was during the winter 2017, which was a period with extremely low temperature and ice cover on the Danube River. Considering the fact that the ice displaced whole receiver deployment downstream the dam, we might conclude that the tagged catfish disappeared because of ice movement during the winter season. Results can be used for management ensuring habitat requirements and developing of restoration and conservation strategies.
PB  - BOKU University of Natural Resources and Life Sciences, Vienna
C3  - 4th International Conference on the Status and Future of the World’s Large Rivers
T1  - Spatial movement of the Wels catfish (Silurus glanis) in the Danube
SP  - 268
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_1658
ER  - 

@conference{
author = "Smederevac-Lalić, Marija and Lenhardt, Mirjana and Spasić, Slađana and Hont, Stefan and Paraschiv, Marian and Iani, Marian I. and NICHERSU, IULIAN and Trifanov, Cristian and Nikčević, Miroslav and Klimley, Peter A. and Suciu, Radu",
year = "2021",
abstract = "Wels catfish (Silurus glanis, Linnaeus, 1758) is one of the most targeted species for recreational and commercial fishing in the Danube River, even though studies of behavior and movement patterns of Wels catfish in the Danube are rare. Wels catfish was caught downstream of Iron Gate II hydropower dam and tagged with an ultrasonic transmitter (Vemco Ltd, V16TP). Nine autonomous receivers (Vemco Ltd, VR 2W) recorded detections of spatial movement downstream of Iron Gate II dam between Serbia and Romania for almost two years, between the years 2015 and 2017. Our telemetry data found that Wels catfish exhibit relatively short movements within a maximum range (≈ 12 km), but as a territorial species most of the time it was recorded by the two receivers, close to the Iron Gate dam and location where it was caught. The longest displacement from the preferable place under Iron Gate II dam was migration to Romanian ship lock and turbines located in the right arm of the Danube River. Location under the river dam is already recognized as a place of aggregation of the fish and thus preference of predatory catfish is strongly connected with food availability. Our data revealed that dam and ship lock blocked further migration of this fish. The last signal received was during the winter 2017, which was a period with extremely low temperature and ice cover on the Danube River. Considering the fact that the ice displaced whole receiver deployment downstream the dam, we might conclude that the tagged catfish disappeared because of ice movement during the winter season. Results can be used for management ensuring habitat requirements and developing of restoration and conservation strategies.",
publisher = "BOKU University of Natural Resources and Life Sciences, Vienna",
journal = "4th International Conference on the Status and Future of the World’s Large Rivers",
title = "Spatial movement of the Wels catfish (Silurus glanis) in the Danube",
pages = "268",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_1658"
}

Smederevac-Lalić, M., Lenhardt, M., Spasić, S., Hont, S., Paraschiv, M., Iani, M. I., NICHERSU, I., Trifanov, C., Nikčević, M., Klimley, P. A.,& Suciu, R.. (2021). Spatial movement of the Wels catfish (Silurus glanis) in the Danube. in 4th International Conference on the Status and Future of the World’s Large Rivers
BOKU University of Natural Resources and Life Sciences, Vienna., 268.
https://hdl.handle.net/21.15107/rcub_rimsi_1658

Smederevac-Lalić M, Lenhardt M, Spasić S, Hont S, Paraschiv M, Iani MI, NICHERSU I, Trifanov C, Nikčević M, Klimley PA, Suciu R. Spatial movement of the Wels catfish (Silurus glanis) in the Danube. in 4th International Conference on the Status and Future of the World’s Large Rivers. 2021;:268.
https://hdl.handle.net/21.15107/rcub_rimsi_1658 .

Smederevac-Lalić, Marija, Lenhardt, Mirjana, Spasić, Slađana, Hont, Stefan, Paraschiv, Marian, Iani, Marian I., NICHERSU, IULIAN, Trifanov, Cristian, Nikčević, Miroslav, Klimley, Peter A., Suciu, Radu, "Spatial movement of the Wels catfish (Silurus glanis) in the Danube" in 4th International Conference on the Status and Future of the World’s Large Rivers (2021):268,
https://hdl.handle.net/21.15107/rcub_rimsi_1658 .

TY  - JOUR
AU  - Lenhardt, Mirjana
AU  - Smederevac-Lalić, Marija
AU  - Spasić, Slađana
AU  - Hont, Stefan
AU  - Paraschiv, Marian
AU  - Iani, Marian I.
AU  - Nikčević, Miroslav
AU  - Klimley, Peter A.
AU  - Suciu, Radu
PY  - 2021
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1455
AB  - The giant European catfish, Silurus glanis (total length = 200 cm; total weight approximate to 80 kg) was caught downstream of Iron Gate II hydropower dam (Danube River, 863 rkm) and tagged with an ultrasonic transmitter (V16TP; Vemco Ltd.) equipped with depth and temperature sensors. Changes in catfish diving behavior and temperature exposure were monitored over a period of roughly 2 years. Transmitter detections were recorded by nine autonomous receivers (VR2W, installed in 2015 between Serbia and Romania, as well as near Romanian shiplock and upstream Romanian turbines). The first signals were recorded on April 28, 2015 and the last on February 13, 2017. Altogether 59,355 and 59,175 detections of the catfish depth and water temperature were recorded, respectively. The greatest number of signals were recorded by the two receivers closest to the location where the catfish was caught, 72.3% and 27.1%, while only 0.6% of signals were recorded by other receivers. The mean catfish depth was 8.4 m, while minimum and maximum depths were 1.2 and 16.2 m. Results obtained showed that this catfish exhibited high site fidelity, while changes in depth at certain periods are possibly related to its search for prey and upstream migration during the spawning period. Hydropower dam and shiplock were obstacles on its migration upstream and telemetry studies could ensure habitat requirements and meet the development of restoration and conservation strategies for the fish resources in the future.
PB  - Wiley, Hoboken
T2  - International Review of Hydrobiology
T1  - Seasonal changes in depth position and temperature of European catfish (Silurus glanis) tracked by acoustic telemetry in the Danube River
EP  - 201
IS  - 3-4
SP  - 191
VL  - 106
DO  - 10.1002/iroh.202002049
ER  - 

@article{
author = "Lenhardt, Mirjana and Smederevac-Lalić, Marija and Spasić, Slađana and Hont, Stefan and Paraschiv, Marian and Iani, Marian I. and Nikčević, Miroslav and Klimley, Peter A. and Suciu, Radu",
year = "2021",
abstract = "The giant European catfish, Silurus glanis (total length = 200 cm; total weight approximate to 80 kg) was caught downstream of Iron Gate II hydropower dam (Danube River, 863 rkm) and tagged with an ultrasonic transmitter (V16TP; Vemco Ltd.) equipped with depth and temperature sensors. Changes in catfish diving behavior and temperature exposure were monitored over a period of roughly 2 years. Transmitter detections were recorded by nine autonomous receivers (VR2W, installed in 2015 between Serbia and Romania, as well as near Romanian shiplock and upstream Romanian turbines). The first signals were recorded on April 28, 2015 and the last on February 13, 2017. Altogether 59,355 and 59,175 detections of the catfish depth and water temperature were recorded, respectively. The greatest number of signals were recorded by the two receivers closest to the location where the catfish was caught, 72.3% and 27.1%, while only 0.6% of signals were recorded by other receivers. The mean catfish depth was 8.4 m, while minimum and maximum depths were 1.2 and 16.2 m. Results obtained showed that this catfish exhibited high site fidelity, while changes in depth at certain periods are possibly related to its search for prey and upstream migration during the spawning period. Hydropower dam and shiplock were obstacles on its migration upstream and telemetry studies could ensure habitat requirements and meet the development of restoration and conservation strategies for the fish resources in the future.",
publisher = "Wiley, Hoboken",
journal = "International Review of Hydrobiology",
title = "Seasonal changes in depth position and temperature of European catfish (Silurus glanis) tracked by acoustic telemetry in the Danube River",
pages = "201-191",
number = "3-4",
volume = "106",
doi = "10.1002/iroh.202002049"
}

Lenhardt, M., Smederevac-Lalić, M., Spasić, S., Hont, S., Paraschiv, M., Iani, M. I., Nikčević, M., Klimley, P. A.,& Suciu, R.. (2021). Seasonal changes in depth position and temperature of European catfish (Silurus glanis) tracked by acoustic telemetry in the Danube River. in International Review of Hydrobiology
Wiley, Hoboken., 106(3-4), 191-201.
https://doi.org/10.1002/iroh.202002049

Lenhardt M, Smederevac-Lalić M, Spasić S, Hont S, Paraschiv M, Iani MI, Nikčević M, Klimley PA, Suciu R. Seasonal changes in depth position and temperature of European catfish (Silurus glanis) tracked by acoustic telemetry in the Danube River. in International Review of Hydrobiology. 2021;106(3-4):191-201.
doi:10.1002/iroh.202002049 .

Lenhardt, Mirjana, Smederevac-Lalić, Marija, Spasić, Slađana, Hont, Stefan, Paraschiv, Marian, Iani, Marian I., Nikčević, Miroslav, Klimley, Peter A., Suciu, Radu, "Seasonal changes in depth position and temperature of European catfish (Silurus glanis) tracked by acoustic telemetry in the Danube River" in International Review of Hydrobiology, 106, no. 3-4 (2021):191-201,
https://doi.org/10.1002/iroh.202002049 . .