Seasonal changes in depth position and temperature of European catfish (Silurus glanis) tracked by acoustic telemetry in the Danube River
Authorized Users Only
2021
Authors
Lenhardt, Mirjana
Smederevac-Lalić, Marija

Spasić, Slađana

Hont, Stefan

Paraschiv, Marian
Iani, Marian I.

Nikčević, Miroslav

Klimley, Peter A.
Suciu, Radu

Article (Published version)

Metadata
Show full item recordAbstract
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 w...as 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.
Keywords:
tag / sensor / large river / fish / behaviorSource:
International Review of Hydrobiology, 2021, 106, 3-4, 191-201Publisher:
- Wiley, Hoboken
Funding / projects:
- European Investment Bank [CC6451/PO733755]
- COST Action ETN [CA18102]
- Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 200053 (University of Belgrade, Institute for Multidisciplinary Research) (RS-200053)
- Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 200007 (University of Belgrade, Institute for Biological Research 'Siniša Stanković') (RS-200007)
DOI: 10.1002/iroh.202002049
ISSN: 1434-2944
WoS: 000632483000001
Scopus: 2-s2.0-85103214915
Collections
Institution/Community
Institut za multidisciplinarna istraživanjaTY - 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 . .