Fin Whale (Balaenoptera physalus) in the Ligurian Sea: Preliminary Study on Acoustics Demonstrates Their Regular Occurrence in Autumn
The patterns of movement of the fin whale (Balaenoptera physalus (Linnaeus, 1758)) in the Mediterranean Sea are still a matter of debate. Feeding aggregations are well known in the Corso-Liguro-Provençal Basin from July to September, but little is known for the autumn and winter seasons. Passive aco...
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ftunivtorino:oai:iris.unito.it:2318/1800279 2023-08-27T04:08:37+02:00 Fin Whale (Balaenoptera physalus) in the Ligurian Sea: Preliminary Study on Acoustics Demonstrates Their Regular Occurrence in Autumn Pintore, Laura Sciacca, Virginia Viola, Salvatore Giacoma, Cristina Papale, Elena Giorli, Giacomo Pintore, Laura Sciacca, Virginia Viola, Salvatore Giacoma, Cristina Papale, Elena Giorli, Giacomo 2021 http://hdl.handle.net/2318/1800279 https://doi.org/10.3390/jmse9090966 https://www.mdpi.com/2077-1312/9/9/966#cite eng eng volume:9 issue:9 firstpage:966 lastpage:981 numberofpages:16 journal:JOURNAL OF MARINE SCIENCE AND ENGINEERING http://hdl.handle.net/2318/1800279 doi:10.3390/jmse9090966 https://www.mdpi.com/2077-1312/9/9/966#cite info:eu-repo/semantics/openAccess fin whale Balaenoptera physalu Mediterranean Sea Ligurian Sea acoustic detection info:eu-repo/semantics/article 2021 ftunivtorino https://doi.org/10.3390/jmse9090966 2023-08-08T22:27:04Z The patterns of movement of the fin whale (Balaenoptera physalus (Linnaeus, 1758)) in the Mediterranean Sea are still a matter of debate. Feeding aggregations are well known in the Corso-Liguro-Provençal Basin from July to September, but little is known for the autumn and winter seasons. Passive acoustic monitoring (PAM) was implemented in the Ligurian Sea to overcome this gap and to investigate the temporal and spatial variation of fin whale acoustic presence. From July to December 2011, five autonomous recorders were deployed at between 700 and 900 m depths. Fin whale calls were automatically detected almost every day, with higher vocalization rates in October, November, and December. Furthermore, daily vocalization rates were higher during light hours, and closer to the coast. These outcomes suggest that not all the individuals migrate, staying in the area also during autumn for feeding or breeding purposes. The dial cycle of vocalization might be related to feeding activities and zooplankton vertical migration, whereas the proximity to the coast can be explained by the morphology of the area that promotes the upwelling system. Although this work only represents a six-month period, certainly it suggests the need for a larger spatial and temporal PAM effort, crucial for species management and for mitigating possible impact of anthropogenic activities at the basin level. Article in Journal/Newspaper Balaenoptera physalus Fin whale Università degli studi di Torino: AperTo (Archivio Istituzionale ad Accesso Aperto) Journal of Marine Science and Engineering 9 9 966 |
institution |
Open Polar |
collection |
Università degli studi di Torino: AperTo (Archivio Istituzionale ad Accesso Aperto) |
op_collection_id |
ftunivtorino |
language |
English |
topic |
fin whale Balaenoptera physalu Mediterranean Sea Ligurian Sea acoustic detection |
spellingShingle |
fin whale Balaenoptera physalu Mediterranean Sea Ligurian Sea acoustic detection Pintore, Laura Sciacca, Virginia Viola, Salvatore Giacoma, Cristina Papale, Elena Giorli, Giacomo Fin Whale (Balaenoptera physalus) in the Ligurian Sea: Preliminary Study on Acoustics Demonstrates Their Regular Occurrence in Autumn |
topic_facet |
fin whale Balaenoptera physalu Mediterranean Sea Ligurian Sea acoustic detection |
description |
The patterns of movement of the fin whale (Balaenoptera physalus (Linnaeus, 1758)) in the Mediterranean Sea are still a matter of debate. Feeding aggregations are well known in the Corso-Liguro-Provençal Basin from July to September, but little is known for the autumn and winter seasons. Passive acoustic monitoring (PAM) was implemented in the Ligurian Sea to overcome this gap and to investigate the temporal and spatial variation of fin whale acoustic presence. From July to December 2011, five autonomous recorders were deployed at between 700 and 900 m depths. Fin whale calls were automatically detected almost every day, with higher vocalization rates in October, November, and December. Furthermore, daily vocalization rates were higher during light hours, and closer to the coast. These outcomes suggest that not all the individuals migrate, staying in the area also during autumn for feeding or breeding purposes. The dial cycle of vocalization might be related to feeding activities and zooplankton vertical migration, whereas the proximity to the coast can be explained by the morphology of the area that promotes the upwelling system. Although this work only represents a six-month period, certainly it suggests the need for a larger spatial and temporal PAM effort, crucial for species management and for mitigating possible impact of anthropogenic activities at the basin level. |
author2 |
Pintore, Laura Sciacca, Virginia Viola, Salvatore Giacoma, Cristina Papale, Elena Giorli, Giacomo |
format |
Article in Journal/Newspaper |
author |
Pintore, Laura Sciacca, Virginia Viola, Salvatore Giacoma, Cristina Papale, Elena Giorli, Giacomo |
author_facet |
Pintore, Laura Sciacca, Virginia Viola, Salvatore Giacoma, Cristina Papale, Elena Giorli, Giacomo |
author_sort |
Pintore, Laura |
title |
Fin Whale (Balaenoptera physalus) in the Ligurian Sea: Preliminary Study on Acoustics Demonstrates Their Regular Occurrence in Autumn |
title_short |
Fin Whale (Balaenoptera physalus) in the Ligurian Sea: Preliminary Study on Acoustics Demonstrates Their Regular Occurrence in Autumn |
title_full |
Fin Whale (Balaenoptera physalus) in the Ligurian Sea: Preliminary Study on Acoustics Demonstrates Their Regular Occurrence in Autumn |
title_fullStr |
Fin Whale (Balaenoptera physalus) in the Ligurian Sea: Preliminary Study on Acoustics Demonstrates Their Regular Occurrence in Autumn |
title_full_unstemmed |
Fin Whale (Balaenoptera physalus) in the Ligurian Sea: Preliminary Study on Acoustics Demonstrates Their Regular Occurrence in Autumn |
title_sort |
fin whale (balaenoptera physalus) in the ligurian sea: preliminary study on acoustics demonstrates their regular occurrence in autumn |
publishDate |
2021 |
url |
http://hdl.handle.net/2318/1800279 https://doi.org/10.3390/jmse9090966 https://www.mdpi.com/2077-1312/9/9/966#cite |
genre |
Balaenoptera physalus Fin whale |
genre_facet |
Balaenoptera physalus Fin whale |
op_relation |
volume:9 issue:9 firstpage:966 lastpage:981 numberofpages:16 journal:JOURNAL OF MARINE SCIENCE AND ENGINEERING http://hdl.handle.net/2318/1800279 doi:10.3390/jmse9090966 https://www.mdpi.com/2077-1312/9/9/966#cite |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.3390/jmse9090966 |
container_title |
Journal of Marine Science and Engineering |
container_volume |
9 |
container_issue |
9 |
container_start_page |
966 |
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1775349453854605312 |