Exeter Marine Podcast – Arctic Terns, Basking Sharks; Bluefin Tuna, with Dr. Lucy Hawkes

 

In this episode we talk to Dr. Lucy Hawkes about a number of her research areas including arctic terns, basking sharks and bluefin tuna. Listen out for a story about a mysterious tuna tag as well.

 


 

About our guest: Dr. Lucy Hawkes 

Lucy is a physiological ecologist, whose work focuses on the costs and drivers of migration in animals (vertebrates and invertebrates) using emergent technologists such as satellite telemetry, heart rate logging, accelerometry and metabolic rate measurements. Lucy uses technical approaches including biologging, spatial ecology, remote sensing and respirometry to make empirical measurements that help in the understanding of amazing migratory performances. Lucy’s work has also investigated the impact of external forcing factors, such as climate change and disease ecology on migration and breeding ecology.

 

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Above: Dr. Lucy Hawkes, Dr. Matt Witt and the team working with basking sharks. Photo credits: Nic Davies

 


 

Topics discussed:

  • Lucy’s experience as a National Geographic Explorer.
  • Tagging and studying bluefin tuna.
  • The long distance migrations of arctic terns.
  • Studying basking shark behaviour.
  • Breaching basking sharks.
  • The journey of a mysterious tuna tag (pictured right).

 

 

 

 


 

Basking shark videos

 


 

Resources:

 


 

Episode and show notes produced by Ben Toulson and Katie Finnimore.

Check out other episodes of the podcast here.

You can subscribe on most podcast apps, if you’re feeling kind please leave us a review!

#ExeterMarine is an interdisciplinary group of marine related researchers with capabilities across the scientific, medical, engineering, humanities and social science fields. If you are interested in working with our researchers or students, contact Emily Easman or visit our website!

 

 

Scientists at Sea Podcast – Atlantic Bluefin Tuna in the UK, with Tom Horton

Show notes

In this episode we speak to Tom Horton, a current PhD student at the University of Exeter and Project Officer for ThunnusUK. Tom and Ethan discuss all things ThunnusUK and Atlantic bluefin tuna.

ThunnusUK (named after the Atlantic bluefin tuna’s latin name, Thunnus thynnus), is a collaborative study between the Univeristy of Exeter and the Centre for Environment, Fisheries and Aquaculture Science (Cefas). The aim is to provide a baseline understanding of ecology and global distribution of Atlantic bluefin tuna that can be found in the waters around southwest England.

You can find out more about ThunnusUK here.

 

Atlantic bluefin tuna have historically weighed up to 900kg and measured nearly 4m.

 


About our guest: Tom Horton

Tom has built up an impressive career portfolio, after graduating from a Marine Biology (MSci) at the University of Southampton he became a research assistant at the Marine Megafauna Foundation. Following this he moved to Cornwall to become the Volunteer Seaquest Southwest Co-ordinator for the Cornwall Wildlife Trust and then progressed on to work for Marine Discovery Penzance as a researcher and guide. He is now undertaking a PhD with the University of Exeter, Cefas, and Stanford University focusing the spatial ecology of marine vertebrates that are of conservation concern, Atlantic bluefin tuna being a prime example.

 

Tom (right), pictured out on fieldwork.

 


 

Topics discussed

A selection of the tags used in the research
  • What is Thunnus UK?
  • How long has Thunnus UK been around?
  • Atlantic bluefin tuna in UK waters, why do they come here?
  • How do you tag and track a bluefin tuna?
  • How do tuna tags work?
  • Tagging animals safely and responsibly
  • How have fishers responded to the project?
  • Where do Atlantic bluefin tuna travel to when they leave UK waters?

 


 

Resources

 

Thunnus UK website

Have you spotted a Bluefin Tuna? You Can report your sighting here 

Tom Horton on Twitter

Thunnus on Twitter

 

 


Episode and show notes produced by Ben Toulson and Katie Finnimore.

Check out other episodes of the podcast here.

You can subscribe on most podcast apps, if you’re feeling kind please leave us a review!

As mentioned in the podcast, if you would like to hear what our series 1 presenters (Ethan Wrigglesworth and Molly Meadows) have been up to, check out Trail and Errors.

#ExeterMarine is an interdisciplinary group of marine related researchers with capabilities across the scientific, medical, engineering, humanities and social science fields. If you are interested in working with our researchers or students, contact Michael Hanley or visit our website!