046 - Deep sea skates & rays with Will White

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This month we're talking about the flattest of the elasmobranchs: the bottom-dwelling batoids - the deep sea rays and skates!

Image sourced from Lucille Chapuis & Shaun P Collin (2022), The auditory system of cartilaginous fishes

We’re kicking off our cartilaginous fishes (Chondrichthyes) mini-series with the batoids - the rays and skates! Sharks are often associated with the deep sea, but did you know that batoids have been observed as deep as 3000m?

We speak with Dr Will White who researches elasmobranchs across the world and who has described 50 species! He talks us through the differences between sharks rays and skates, and how these species utilise the deep sea.

We hear about their fascinating (and hugely varied) reproductive strategies like those that are viviparous (will keep the eggs in their uterus) and others that are oviparous (will lay the eggs).


It wouldn’t be a Coffee with Andrew segment without an memorable insight into the world of a fish curator - and this month’s segment is no different! This time, Dr Thom asks Andrew about an unexpected factoid in one of Andrew’s publications: ‘Yolk smells and tastes like sweetened condensed milk’. We find out exactly how Andrew knows this.

We’re really trying to make this project self-sustaining so we have started looking for ways to support the podcast. Here’s a link to our page on how to support us, from the free options to becoming a patron of the show. We want to say a huge thank you to those patrons who have already pledged to support us:

Matthew Gerrard | Jeff Day | Colin Platt

Thanks again for tuning in, we’ll deep-see you next time!


If you liked this episode, you might enjoy these:

Love in the

deep sea

Natural history collections

deep diving whales


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Keep up with the team on social media:

Twitter: Alan - @Hadalbloke, Thom - @ThomLinley, Georgia - @geeinthesea

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Read the show notes and find out more about us at:

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Further resources

Moku Art Studio virtual exhibition

Thom appears on Radio New Zealand

Here's a nice paper with a few observations of elasmobranch food falls

New parasite just dropped!

Bioluminescence 300 millions years older than previously thought

Fathomverse is now live!

More info on Will and his research

Will’s recent article on a new family of deepwater sharks

Great eggcase hunt - Sharks Trust
Andrew’s book mentioned in Coffee with Andrew

People mentioned


Credits

Theme – Hadal Zone Express by Märvel

Logo image - Matthias Stehmann et al. (2021)

Edited by - Georgia Wells