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  - 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 .