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Reposted by AU Bioacoustics

Marine Mammal Research at Aarhus University, Ecoscience @marinemammalsau.bsky.social · 08/09/2026

'What does an Arctic fjord sound like beneath the surface during an expedition cruise? First results will be presented at the Arctic Cruise Conference during Arctic Expedition Cruise Week in Oslo, October 20–23.' link below to press release from AECO involving work by our section 🐋🌐🔊 🧪❄️

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AU Bioacoustics @bioacousticsau.bsky.social · 08/06/2026

Have you ever wondered what #narwhals 🐬🦄 do when the fjords of #Greenland are frozen solid ❄️? Our researchers including @juli827g.bsky.social have been listening underwater using #passiveacousticmonitoring 🎧 to find out: www.nature.com/articles/s41... #bioacoustics #marinemammals #Arctic

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AU Bioacoustics @bioacousticsau.bsky.social · 20/05/2026

Novel insights on #spermwhale communication 🐋🔈: Male Sperm Whales may use slow clicks to maintain information over extreme distances, and these long-range signals may offer honest advertisement through slow-rhythm-keeping to distant receivers. #marinebioacoustics doi.org/10.1111/nyas...

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AU Bioacoustics @bioacousticsau.bsky.social · 05/05/2026

#Bats in not so dark and not so quiet night skies 🦇🔉🔦 Caspersen et al. show that Daubenton's bats are vulnerable to #lightpollution and #noisepollution, but they also show the bat's ability to recover within minutes of the stressor being removed. #bioacoustics doi.org/10.1038/s415...

Picture of two Daubenton’s bats - one resting on a rock and another flying off into the night sky. Photo credit: Signe Brinkløv

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AU Bioacoustics @bioacousticsau.bsky.social · 28/04/2026

Exciting new insights on #echolocation in #bats 🦇🔉 Mortensen et al. report the first documented case of aerial hawking in bats without the three griffin phases of echolocation, highlighting that a fast-updating buzz is not necessary for aerial prey capture. #bioacoustics doi.org/10.1242/jeb....

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AU Bioacoustics @bioacousticsau.bsky.social · 23/03/2026

Eavesdropping on #beakedwhales in great depths In January, some of our colleagues went to #ElHierro The goal: To quantify the click parameters of endangered beaked whales at 1 km depth, successfully testing a #deepwater #acousticarray system that can be deployed from small boats! #bioacoustics

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AU Bioacoustics @bioacousticsau.bsky.social · 18/03/2026

#PHD #summerschool in #bioacoustics 🦇🐬🐦🐘🔉- Application open NOW If your PhD studies 🧑‍🎓👩‍🎓involve #acousticcommunication in terrestrial or marine animals, we highly recommend participating in this biennial international 14-days intensive graduate course by @sdu.dk www.sdu.dk/en/forskning...

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AU Bioacoustics @bioacousticsau.bsky.social · 17/03/2026

What an incredible #rescuemission in #greenland ! When the #bowhead 🐋 spotting drone ran out of battery & made an emergency landing on an iceberg, our master's student Oliver & the amazing Greenland Institute of Natural Resources team sent the larger #whale #tagging drone to successfully salvage it!

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AU Bioacoustics @bioacousticsau.bsky.social · 18/12/2025

New publication 🐋 fresh out of our #bioacoustics lab! Congratulations to our dedicated colleague @beeden.bsky.social & co-authors 🥳 HIGH FREQUENCY #VESSELNOISE 🛥️ MASKS ECHOLOCATION AND COMMUNICATION 🔉 IN #HARBOURPORPOISES 🐬 Read the full article here: doi.org/10.1121/10.0...

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AU Bioacoustics @bioacousticsau.bsky.social · 10/12/2025

🥂Last month, we hatched 2 new Master’s graduates 👨‍🎓👩‍🎓 who both successfully defended their theses: 🦇 Sebastian Mortensen: Aerial hawking by a gleaning specialist bat (Trachops cirrhosus) does not involve a resolution buzz 🎤 🦭 Naja Christensen: Field metabolic rate of Harbour seals ⚡ Congratulations 🥳

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AU Bioacoustics @bioacousticsau.bsky.social · 09/12/2025

Last week, our 2 PhD students & colleagues successfully conducted a full turnover of 8 #acousticrecording stations 🎧 out in Aarhus Bay 🌊. The data feeds into a year-round #marinesoundscape monitoring programme to assess #noisedisturbance for #harbourporpoises 🚢🐬(funded by AVJ Naturfond).

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AU Bioacoustics @bioacousticsau.bsky.social · 26/11/2025

🎙️🔊🐬 ALL IS WELL IF YOU KNOW YOUR RECORDING CHAIN🎙️🔊🦇 A few days ago we had our annual walkthrough of recording chain essentials, to all remind ourselves what it requires to make trustworthy and high-quality recordings! That is always useful for both aspiring and seasoned bioacousticians 🧐

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AU Bioacoustics @bioacousticsau.bsky.social · 25/11/2025

Last week, our lab successfully tested a new hydrophone 🎙️calibration ⚖️ method out in the port of #Aarhus ⚓. Tests like these will allow for more accurate sound measurements - such as noise levels from shipping 🚢 and other maritime activities. #bioacoustics #marineacoustics

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Reposted by AU Bioacoustics

Emily T Griffiths @emilytgriffiths.com · 08/11/2025

It's live! Please see my new paper in Ecological Informatics on the #detection and #categorization of frequency notched echolocation from wild recordings. 🐬🔊👇 www.sciencedirect.com/science/arti...

Graphical abstract for the paper 'A simple categorization method for frequency notched echolocation.' Here, we describe how from four passive acoustic monitoring stations in Skagerrak, echolocation clicks from white-beaked dolphins were manually audited. These signals exhibit distinct spectral peaks and notches between 20-80 kHz in 75-90% of visually confirmed species recordings.

A nonlinear least squares model was used to dynamically map the spectral banding pattern.

Our template was significantly correlated with 87% audited white-beaked dolphin events, making this a viable, computationally efficient method.

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Reposted by AU Bioacoustics

Fabienne Mannherz @hejfabienne.bsky.social · 05/11/2025

Molly the #bioacoustics #corgi joined, too!

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AU Bioacoustics @bioacousticsau.bsky.social · 05/11/2025

🦇🌙⛏ IT'S SPOOKY SEASON 🎃💀🕷 When you study #bioacoustics and #bats, there is always an appropriate Halloween outing! This year, we went to the Mønsted limestone mine, a 60-km-long man-made cave system and THE place to be for winter hibernation (9000 bats surely can't be wrong!).

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AU Bioacoustics @bioacousticsau.bsky.social · 04/11/2025

🦇CARNIVOROUS BAT RIVALS BIG CATS 🦁 IN HUNTING ABILITY Researchers from our lab incl. Leonie Baier & @laurastidsholt.bsky.social discovered that the fringe-lipped bats of Panama hunt for prey near their own body size - similar to large cats! doi.org/10.1016/j.cu... Fotos: Grant Maslowski

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AU Bioacoustics @bioacousticsau.bsky.social · 16/10/2025

Paper & incredible science alert: Our assistant professor @laurastidsholt.bsky.social & a passionate team @elena-tena.bsky.social @ebdonana.bsky.social found proof for greater nocturnal #bats 🦇 preying on migratory birds 🐦 AND devouring them in flight! #bioacoustics www.science.org/doi/10.1126/...

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AU Bioacoustics @bioacousticsau.bsky.social · 13/08/2025

Intense days for our PhD student @hejfabienne.bsky.social. In a joint effort @au.dk ,#ntnu PhD student @leayero.bsky.social & #UiB, have deployed 8 geophones + 2 soundtrap hydrophones along a #DAS enabled #fibercable in #Svalbard to compare #shipnoise measurements in an Arctic fjord 🚢🔊🐋 #seasounds

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AU Bioacoustics @bioacousticsau.bsky.social · 13/08/2025

Breaking News 🚨: Our #bioacoustics 🔉🐬🦇lab seeks a permanent new colleague in a tenure-track assistant professor 🥷position. Excited? Then join our vibrant group of 15 researchers, postdocs and PhD students at AU who work with #marinemammal #acoustics, #conservation #physiology and #effectsofnoise!

au.dk

Tenure-track Assistant Professor in Bioacoustic Physiology - Ledig stilling på Aarhus Universitet

Ledig stilling ved Institut for Biologi - Zoofysiologi, Aarhus Universitet

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Reposted by AU Bioacoustics

Fabienne Mannherz @hejfabienne.bsky.social · 07/06/2025

Ready to join me for some #marineacoustics research in the #arcticocean ? ❄️⛴️🎧🦭🐳 Where am I going? @bioacousticsau.bsky.social @marinemammalsau.bsky.social

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AU Bioacoustics @bioacousticsau.bsky.social · 02/04/2025

📢Exciting news 1: We just launched our new Center for Active Sensing with Sound 🎧🥳 📢Exciting news 2: We are looking for 2 new PhD students 👩‍🎓👨‍🎓 in “Echolocation in bats🦇 and toothed whales 🐬” – read more here:

phd.nat.au.dk

Echolocation in bats and toothed whales

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AU Bioacoustics @bioacousticsau.bsky.social · 28/03/2025

Successful day out in Aarhus Bay 🇩🇰⛴️ for our PhDs @cmarcolin.bsky.social @hejfabienne.bsky.social & MSc Matthias ⬇️deployed 8 hydrophone 🎧 stations with @innovasea.com releases and ⬆️recovered 2 after 9 months! There #bioacoustics PhD project investigates #shippingnoise and impacts on porpoises 🐬.

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AU Bioacoustics @bioacousticsau.bsky.social · 21/03/2025

🔊 Paper alert! 🐬🎧 Noise of high-speed vessels 🚤 impairs the #biosonar ability of #harbourporpoises 🐬 - making it more difficult for them to 🤯 sense surroundings, 🧭 navigate and 🐟 hunt prey within several hundred meters. 🥳Huge contribution to understanding masking effects! 🌐 doi.org/10.1242/jeb....

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Reposted by AU Bioacoustics

Julie Sofie K. Larsen @juli827g.bsky.social · 19/03/2025

🌊🔊 Hi Bluesky! I’m Julie, a master’s student at @bioacousticsau.bsky.social, studying underwater noise, soundscapes, and narwhal behavior in Northwest Greenland. I’ve worked on bycatch mitigation and behavior in harbour porpoises, and humpback whale photo-ID in Greenland. 🐳❄️ #bioacoustics #arctic

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AU Bioacoustics @bioacousticsau.bsky.social · 13/03/2025

THIS IS HOW WE DO IT 🐬🎧- (when conducting #acousticmonitoring at #windfarms, e.g. for #Energinet in the #NorthSea) - The equipment is deployed ⚓🎙️, - then, stays out at sea for months🌊📆, - then, we recover it using acoustic releases ⚓✨, - and analyse it back home 🖥️🔊. #appliedbioacoustics

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AU Bioacoustics @bioacousticsau.bsky.social · 12/03/2025

POV: Mia & Jakob successfully recovered an 🔊 acoustic array at a #WindFarm in the #NorthSea 🌊 - part of our #AcousticMonitoring work for #Energinet. With the gear safely back, we can now look (& listen🎧🖥️) for #porpoise 🐬 vocalisations to learn more about how they move around the wind turbines.

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AU Bioacoustics @bioacousticsau.bsky.social · 10/03/2025

Happy Monday. 😅 Some of us where out in the North Sea this weekend 🌊 #justhangingaround bioacousticians #bioacoustics

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AU Bioacoustics @bioacousticsau.bsky.social · 06/03/2025

Hej, 🔊🐋🦇we are the group behind Prof. Peter T. Madsen at the #Bioacoustics Lab @au.dk . We eavesdrop 🎧🤫 on oceans 🌊 and night skies 🌙 - turning sound into science to understand & protect #marinemammals 🐬🦭 and #bats 🦇 🧛🏻‍♀️. Join us for insights from the secret lives of #bioacousticians.

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