Biosonar, dive, and foraging activity of satellite tracked harbor porpoises (Phocoena phocoena)
This study presents bioacoustic recordings in combination with movements and diving behavior of three free-ranging harbor porpoises (a female and two males) in Danish waters. Each porpoise was equipped with an acoustic data logger (A-tag), a time-depth-recorder, a VHF radio transmitter, and a satell...
Published in: | Marine Mammal Science |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2013
|
Subjects: | |
Online Access: | https://portal.findresearcher.sdu.dk/da/publications/784e608f-9ac7-4090-b759-772fe28dcaa7 https://doi.org/10.1111/j.1748-7692.2012.00592.x |
id |
ftsydanskunivpub:oai:sdu.dk:publications/784e608f-9ac7-4090-b759-772fe28dcaa7 |
---|---|
record_format |
openpolar |
spelling |
ftsydanskunivpub:oai:sdu.dk:publications/784e608f-9ac7-4090-b759-772fe28dcaa7 2024-09-15T18:30:25+00:00 Biosonar, dive, and foraging activity of satellite tracked harbor porpoises (Phocoena phocoena) Linnenschmidt, Meike Teilmann, Jonas Akamatsu, Tomonari Dietz, Rune Miller, Lee A. 2013-04 https://portal.findresearcher.sdu.dk/da/publications/784e608f-9ac7-4090-b759-772fe28dcaa7 https://doi.org/10.1111/j.1748-7692.2012.00592.x eng eng https://portal.findresearcher.sdu.dk/da/publications/784e608f-9ac7-4090-b759-772fe28dcaa7 info:eu-repo/semantics/restrictedAccess Linnenschmidt , M , Teilmann , J , Akamatsu , T , Dietz , R & Miller , L A 2013 , ' Biosonar, dive, and foraging activity of satellite tracked harbor porpoises (Phocoena phocoena) ' , Marine Mammal Science , vol. 29 , no. 2 , pp. E77-E97 . https://doi.org/10.1111/j.1748-7692.2012.00592.x Acoustic tag Argos Biosonar Danish waters Diving Echolocation Foraging Great Belt Harbor porpoise Kattegat Phocoena phocoena TDR article 2013 ftsydanskunivpub https://doi.org/10.1111/j.1748-7692.2012.00592.x 2024-07-01T23:45:10Z This study presents bioacoustic recordings in combination with movements and diving behavior of three free-ranging harbor porpoises (a female and two males) in Danish waters. Each porpoise was equipped with an acoustic data logger (A-tag), a time-depth-recorder, a VHF radio transmitter, and a satellite transmitter. The units were programmed to release after 24 or 72 h. Possible foraging occurred mostly near the surface or at the bottom of a dive. The porpoises showed individual diversity in biosonar activity (<100 to >50,000 clicks per hour) and in dive frequency (6–179 dives per hour). We confirm that wild harbor porpoises use more intense clicks than captive animals. A positive tendency between number of dives and clicks per hour was found for a subadult male, which stayed near shore. It showed a distinct day-night cycle with low echolocation rates during the day, but five times higher rates and higher dive activity at night. A female traveling in open waters showed no diel rhythm, but its sonar activity was three times higher compared to the males’. Considerable individual differences in dive and echolocation activity could have been influenced by biological and physical factors, but also show behavioral adaptability necessary for survival in a complex coastal environment. Article in Journal/Newspaper Phocoena phocoena University of Southern Denmark Research Portal Marine Mammal Science 29 2 E77 E97 |
institution |
Open Polar |
collection |
University of Southern Denmark Research Portal |
op_collection_id |
ftsydanskunivpub |
language |
English |
topic |
Acoustic tag Argos Biosonar Danish waters Diving Echolocation Foraging Great Belt Harbor porpoise Kattegat Phocoena phocoena TDR |
spellingShingle |
Acoustic tag Argos Biosonar Danish waters Diving Echolocation Foraging Great Belt Harbor porpoise Kattegat Phocoena phocoena TDR Linnenschmidt, Meike Teilmann, Jonas Akamatsu, Tomonari Dietz, Rune Miller, Lee A. Biosonar, dive, and foraging activity of satellite tracked harbor porpoises (Phocoena phocoena) |
topic_facet |
Acoustic tag Argos Biosonar Danish waters Diving Echolocation Foraging Great Belt Harbor porpoise Kattegat Phocoena phocoena TDR |
description |
This study presents bioacoustic recordings in combination with movements and diving behavior of three free-ranging harbor porpoises (a female and two males) in Danish waters. Each porpoise was equipped with an acoustic data logger (A-tag), a time-depth-recorder, a VHF radio transmitter, and a satellite transmitter. The units were programmed to release after 24 or 72 h. Possible foraging occurred mostly near the surface or at the bottom of a dive. The porpoises showed individual diversity in biosonar activity (<100 to >50,000 clicks per hour) and in dive frequency (6–179 dives per hour). We confirm that wild harbor porpoises use more intense clicks than captive animals. A positive tendency between number of dives and clicks per hour was found for a subadult male, which stayed near shore. It showed a distinct day-night cycle with low echolocation rates during the day, but five times higher rates and higher dive activity at night. A female traveling in open waters showed no diel rhythm, but its sonar activity was three times higher compared to the males’. Considerable individual differences in dive and echolocation activity could have been influenced by biological and physical factors, but also show behavioral adaptability necessary for survival in a complex coastal environment. |
format |
Article in Journal/Newspaper |
author |
Linnenschmidt, Meike Teilmann, Jonas Akamatsu, Tomonari Dietz, Rune Miller, Lee A. |
author_facet |
Linnenschmidt, Meike Teilmann, Jonas Akamatsu, Tomonari Dietz, Rune Miller, Lee A. |
author_sort |
Linnenschmidt, Meike |
title |
Biosonar, dive, and foraging activity of satellite tracked harbor porpoises (Phocoena phocoena) |
title_short |
Biosonar, dive, and foraging activity of satellite tracked harbor porpoises (Phocoena phocoena) |
title_full |
Biosonar, dive, and foraging activity of satellite tracked harbor porpoises (Phocoena phocoena) |
title_fullStr |
Biosonar, dive, and foraging activity of satellite tracked harbor porpoises (Phocoena phocoena) |
title_full_unstemmed |
Biosonar, dive, and foraging activity of satellite tracked harbor porpoises (Phocoena phocoena) |
title_sort |
biosonar, dive, and foraging activity of satellite tracked harbor porpoises (phocoena phocoena) |
publishDate |
2013 |
url |
https://portal.findresearcher.sdu.dk/da/publications/784e608f-9ac7-4090-b759-772fe28dcaa7 https://doi.org/10.1111/j.1748-7692.2012.00592.x |
genre |
Phocoena phocoena |
genre_facet |
Phocoena phocoena |
op_source |
Linnenschmidt , M , Teilmann , J , Akamatsu , T , Dietz , R & Miller , L A 2013 , ' Biosonar, dive, and foraging activity of satellite tracked harbor porpoises (Phocoena phocoena) ' , Marine Mammal Science , vol. 29 , no. 2 , pp. E77-E97 . https://doi.org/10.1111/j.1748-7692.2012.00592.x |
op_relation |
https://portal.findresearcher.sdu.dk/da/publications/784e608f-9ac7-4090-b759-772fe28dcaa7 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1111/j.1748-7692.2012.00592.x |
container_title |
Marine Mammal Science |
container_volume |
29 |
container_issue |
2 |
container_start_page |
E77 |
op_container_end_page |
E97 |
_version_ |
1810471891123568640 |