Timesharing dolphins

Jan 10, 07:41 PM

We’ve got a brand-new format for The Dolphin Pod that is equal parts science and magic. Yes, MAGIC! We’ll be discussing a recently published scientific article about bottlenose dolphins in the Gulf of Trieste that engage in what news outlets have dubbed "timesharing" – with two dolphin groups using the same habitat at different times of day. Laura and Justin use the magic of podcasting to transport themselves onto a small boat off the coast of Slovenia where they see first hand what these timesharing dolphins get up to. What do you think of the new format? Get in touch with us via social media at twitter.com/dolphincommu or facebook.com/dolphincommunicationproject and let us know! Kje si!

This episode features research from Morigenos – the Slovenian Marine Mammal Society. Learn more about their work at: https://www.morigenos.org/

The primary article being discussed is: 

Genov T., Centrih T., Kotnjek P., Hace A. 2019. Behavioural and temporal partitioning of dolphin social groups in the northern Adriatic Sea. Marine Biology 166: 11. https://doi.org/10.1007/s00227-018-3450-8

We also discuss the following article: 

Genov T., Jepson P.D., Barber J.L., Hace A., Gaspari S., Centrih T., Lesjak J., Kotnjek P. 2019. Linking organochlorine contaminants with demographic parameters in free-ranging common bottlenose dolphins from the northern Adriatic Sea. Science of the Total Environment 657: 200-212. https://doi.org/10.1016/j.scitotenv.2018.12.025

More info on the biopsy darts used to take samples from wild dolphins:
http://www.kaosa.org.br/publications/23_Fruet_et_al_2016_Biopsy_darting.pdf
These darts are quite small and cause minimal discomfort to the dolphin: "Tips measured 25mm in length and 8mm in diameter and had a cylindrical punch fitted with three internal barbs (to hold a sample in place) attached to modified darts. A cylindrical foam stopper caused the bolt to rebound after impact and limited the penetration depth to 20mm."

For more information on the other bottlenose dolphin groups mentioned, visit website for the following research groups: 

Slovenian language (Slovene) tips were taken from here: https://www.youtube.com/watch?v=Phrlqxje9eE

And this is how you write the Slovene phrase “kje si!” which means something like “what’s up”. Here’s an actual Slovenian Eurovision singer (Anika Horvat) singing the words kje si. https://www.youtube.com/watch?v=9mF9C1zFNw8 Our pronunciation is not too far off, eh?

This episode features Slovenian folk music from: https://www.youtube.com/watch?v=E54IhTh5OhY

More info about the beautiful Slovenian village of Piran here: https://www.lonelyplanet.com/slovenia/karst-and-coast/piran

The image used for this episode was taken from a post found on the Twitter account of Tilen Genov, lead author of the scientific article being discussed: https://pbs.twimg.com/media/Dusxl8OWkAAsG3c.jpg

This episode was made possible through generous donations from supporters of the Dolphin Communication Project. We rely on public support to produce The Dolphin Pod. Please consider contributing to our GoFundMe campaign to help make future episodes possible: https://gofundme.com/the-dolphin-pod

What did you think of this episode? Get in touch with us via social media at https://twitter.com/dolphincommu or https://facebook.com/dolphincommunicationproject/ and let us know!