Wild and farmed burbot Lota lota: differences in energy consumption and behavior during the spawning season
Farmed fish released in a native environment can display different spawning behaviour compared to their wild conspecifics. In our study, farmed and wild burbot, a species recently introduced for aquacultural production, were equipped with electromyogram (EMG) radio tags. EMG biotelemetry allows a de...
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Online Access: | https://doi.org/10.3354/aei00389 https://doaj.org/article/bd479292906c45b08eb72257817797ed |
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ftdoajarticles:oai:doaj.org/article:bd479292906c45b08eb72257817797ed 2023-05-15T15:47:11+02:00 Wild and farmed burbot Lota lota: differences in energy consumption and behavior during the spawning season O Slavík P Horký 2021-03-01T00:00:00Z https://doi.org/10.3354/aei00389 https://doaj.org/article/bd479292906c45b08eb72257817797ed EN eng Inter-Research https://www.int-res.com/abstracts/aei/v13/p51-63/ https://doaj.org/toc/1869-215X https://doaj.org/toc/1869-7534 1869-215X 1869-7534 doi:10.3354/aei00389 https://doaj.org/article/bd479292906c45b08eb72257817797ed Aquaculture Environment Interactions, Vol 13, Pp 51-63 (2021) Aquaculture. Fisheries. Angling SH1-691 Ecology QH540-549.5 article 2021 ftdoajarticles https://doi.org/10.3354/aei00389 2022-12-31T10:00:31Z Farmed fish released in a native environment can display different spawning behaviour compared to their wild conspecifics. In our study, farmed and wild burbot, a species recently introduced for aquacultural production, were equipped with electromyogram (EMG) radio tags. EMG biotelemetry allows a description of the spatial distribution of fish together with simultaneous measurements of individual energy consumption. Farmed burbot were released into the wild to simulate stocking or hatchery escape and were observed over a nocturnal phase during November to January. The observational period was assumed to cover the whole spawning season, including an expected peak of spawning activity determined according to egg production by naturally spawning burbot in an experimental seminatural river channel. We detected increased energy consumption and lower movement activity at the time of expected peak spawning for wild burbot only. Across the whole spawning season, farmed females showed lower movement activity and energy consumption than wild females, whereas the opposite results were found for farmed males. Farmed and wild fish kept larger distances between each other than the individuals within a group (farmed and wild) across the whole spawning season. The closest positions occurred between males and females in the wild group, while for farmed fish, the closest position was found within the same sex. Sexually conditioned energy consumption and spatial distribution differed between wild and farmed fish. Article in Journal/Newspaper Burbot Lota lota lota Directory of Open Access Journals: DOAJ Articles Aquaculture Environment Interactions 13 51 63 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Aquaculture. Fisheries. Angling SH1-691 Ecology QH540-549.5 |
spellingShingle |
Aquaculture. Fisheries. Angling SH1-691 Ecology QH540-549.5 O Slavík P Horký Wild and farmed burbot Lota lota: differences in energy consumption and behavior during the spawning season |
topic_facet |
Aquaculture. Fisheries. Angling SH1-691 Ecology QH540-549.5 |
description |
Farmed fish released in a native environment can display different spawning behaviour compared to their wild conspecifics. In our study, farmed and wild burbot, a species recently introduced for aquacultural production, were equipped with electromyogram (EMG) radio tags. EMG biotelemetry allows a description of the spatial distribution of fish together with simultaneous measurements of individual energy consumption. Farmed burbot were released into the wild to simulate stocking or hatchery escape and were observed over a nocturnal phase during November to January. The observational period was assumed to cover the whole spawning season, including an expected peak of spawning activity determined according to egg production by naturally spawning burbot in an experimental seminatural river channel. We detected increased energy consumption and lower movement activity at the time of expected peak spawning for wild burbot only. Across the whole spawning season, farmed females showed lower movement activity and energy consumption than wild females, whereas the opposite results were found for farmed males. Farmed and wild fish kept larger distances between each other than the individuals within a group (farmed and wild) across the whole spawning season. The closest positions occurred between males and females in the wild group, while for farmed fish, the closest position was found within the same sex. Sexually conditioned energy consumption and spatial distribution differed between wild and farmed fish. |
format |
Article in Journal/Newspaper |
author |
O Slavík P Horký |
author_facet |
O Slavík P Horký |
author_sort |
O Slavík |
title |
Wild and farmed burbot Lota lota: differences in energy consumption and behavior during the spawning season |
title_short |
Wild and farmed burbot Lota lota: differences in energy consumption and behavior during the spawning season |
title_full |
Wild and farmed burbot Lota lota: differences in energy consumption and behavior during the spawning season |
title_fullStr |
Wild and farmed burbot Lota lota: differences in energy consumption and behavior during the spawning season |
title_full_unstemmed |
Wild and farmed burbot Lota lota: differences in energy consumption and behavior during the spawning season |
title_sort |
wild and farmed burbot lota lota: differences in energy consumption and behavior during the spawning season |
publisher |
Inter-Research |
publishDate |
2021 |
url |
https://doi.org/10.3354/aei00389 https://doaj.org/article/bd479292906c45b08eb72257817797ed |
genre |
Burbot Lota lota lota |
genre_facet |
Burbot Lota lota lota |
op_source |
Aquaculture Environment Interactions, Vol 13, Pp 51-63 (2021) |
op_relation |
https://www.int-res.com/abstracts/aei/v13/p51-63/ https://doaj.org/toc/1869-215X https://doaj.org/toc/1869-7534 1869-215X 1869-7534 doi:10.3354/aei00389 https://doaj.org/article/bd479292906c45b08eb72257817797ed |
op_doi |
https://doi.org/10.3354/aei00389 |
container_title |
Aquaculture Environment Interactions |
container_volume |
13 |
container_start_page |
51 |
op_container_end_page |
63 |
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1766381987715612672 |