Looking for love under the ice: Using passive acoustics to detect burbot ( Lota lota: Gadidae) spawning activity
Abstract Burbot ( Lota lota : Gadidae) is a difficult species to manage effectively due to its preference for deep‐water habitats and under‐ice spawning behaviour, resulting in a poor understanding of its reproductive activity. However, the use of acoustic signalling by burbot as part of their matin...
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crwiley:10.1111/fwb.13314 2024-06-02T08:04:38+00:00 Looking for love under the ice: Using passive acoustics to detect burbot ( Lota lota: Gadidae) spawning activity Grabowski, Timothy Young, Shawn P. Cott, Peter A. 2019 http://dx.doi.org/10.1111/fwb.13314 https://onlinelibrary.wiley.com/doi/pdf/10.1111/fwb.13314 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/fwb.13314 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Freshwater Biology volume 65, issue 1, page 37-44 ISSN 0046-5070 1365-2427 journal-article 2019 crwiley https://doi.org/10.1111/fwb.13314 2024-05-03T11:46:23Z Abstract Burbot ( Lota lota : Gadidae) is a difficult species to manage effectively due to its preference for deep‐water habitats and under‐ice spawning behaviour, resulting in a poor understanding of its reproductive activity. However, the use of acoustic signalling by burbot as part of their mating system has recently been described and this behaviour may provide a means of investigating questions regarding the spatial and temporal distribution of spawning aggregations using passive acoustic monitoring. We used audio and video recording to confirm that burbot vocalise and that these vocalisations can be detected under field conditions as well as to characterise the relationship between burbot acoustic signalling and spawning behaviour. We also evaluated the feasibility of locating and monitoring burbot spawning aggregations in real time using passive acoustics. Burbot vocalisations were difficult to identify with only about 6% of the recordings containing calls being successfully identified as such in the field. Burbot vocalised more often between sundown and sunrise than during daylight hours. Calls recorded at night tended to be lower frequency, longer duration, and have lower bandwidth than those made during the day. Burbot vocalisations could not be recorded in conjunction with video recordings of spawning activity, indicating that burbot may not call during active spawning, but may use acoustic communication to signal the onset of reproductive readiness and to form pre‐spawning aggregations. While burbot calls were readily identifiable, observers had a difficult time identifying burbot calls in real time under field conditions. Passive acoustic monitoring demonstrates considerable potential as a management tool to locate burbot spawning grounds and identify periods of activity, but may not be an appropriate technique for monitoring spawning activity in real time. Article in Journal/Newspaper Burbot Lota lota lota Wiley Online Library Freshwater Biology 65 1 37 44 |
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Wiley Online Library |
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English |
description |
Abstract Burbot ( Lota lota : Gadidae) is a difficult species to manage effectively due to its preference for deep‐water habitats and under‐ice spawning behaviour, resulting in a poor understanding of its reproductive activity. However, the use of acoustic signalling by burbot as part of their mating system has recently been described and this behaviour may provide a means of investigating questions regarding the spatial and temporal distribution of spawning aggregations using passive acoustic monitoring. We used audio and video recording to confirm that burbot vocalise and that these vocalisations can be detected under field conditions as well as to characterise the relationship between burbot acoustic signalling and spawning behaviour. We also evaluated the feasibility of locating and monitoring burbot spawning aggregations in real time using passive acoustics. Burbot vocalisations were difficult to identify with only about 6% of the recordings containing calls being successfully identified as such in the field. Burbot vocalised more often between sundown and sunrise than during daylight hours. Calls recorded at night tended to be lower frequency, longer duration, and have lower bandwidth than those made during the day. Burbot vocalisations could not be recorded in conjunction with video recordings of spawning activity, indicating that burbot may not call during active spawning, but may use acoustic communication to signal the onset of reproductive readiness and to form pre‐spawning aggregations. While burbot calls were readily identifiable, observers had a difficult time identifying burbot calls in real time under field conditions. Passive acoustic monitoring demonstrates considerable potential as a management tool to locate burbot spawning grounds and identify periods of activity, but may not be an appropriate technique for monitoring spawning activity in real time. |
format |
Article in Journal/Newspaper |
author |
Grabowski, Timothy Young, Shawn P. Cott, Peter A. |
spellingShingle |
Grabowski, Timothy Young, Shawn P. Cott, Peter A. Looking for love under the ice: Using passive acoustics to detect burbot ( Lota lota: Gadidae) spawning activity |
author_facet |
Grabowski, Timothy Young, Shawn P. Cott, Peter A. |
author_sort |
Grabowski, Timothy |
title |
Looking for love under the ice: Using passive acoustics to detect burbot ( Lota lota: Gadidae) spawning activity |
title_short |
Looking for love under the ice: Using passive acoustics to detect burbot ( Lota lota: Gadidae) spawning activity |
title_full |
Looking for love under the ice: Using passive acoustics to detect burbot ( Lota lota: Gadidae) spawning activity |
title_fullStr |
Looking for love under the ice: Using passive acoustics to detect burbot ( Lota lota: Gadidae) spawning activity |
title_full_unstemmed |
Looking for love under the ice: Using passive acoustics to detect burbot ( Lota lota: Gadidae) spawning activity |
title_sort |
looking for love under the ice: using passive acoustics to detect burbot ( lota lota: gadidae) spawning activity |
publisher |
Wiley |
publishDate |
2019 |
url |
http://dx.doi.org/10.1111/fwb.13314 https://onlinelibrary.wiley.com/doi/pdf/10.1111/fwb.13314 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/fwb.13314 |
genre |
Burbot Lota lota lota |
genre_facet |
Burbot Lota lota lota |
op_source |
Freshwater Biology volume 65, issue 1, page 37-44 ISSN 0046-5070 1365-2427 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/fwb.13314 |
container_title |
Freshwater Biology |
container_volume |
65 |
container_issue |
1 |
container_start_page |
37 |
op_container_end_page |
44 |
_version_ |
1800749282333032448 |