SCUBA News (ISSN 1476-8011)
Issue 268 - November 2022
What's new at SCUBA Travel?
What's the difference between a nudibranch and a sea slug?
Reader's recommended dive
Last-minute liveaboard deals
Diving news from around the World
Where to dive and who to dive with.
Nassau grouper spawning in Belize, massive manta groups in the Maldives, hammerheads in Galapagos…
Until I read a gorgeous new book on nudibranchs and sea slugs by Tim Nicholson I didn’t think there was a difference. Not so. All nudibranchs are sea slugs but not all sea slugs are nudibranchs.
I love nudibranchs. When on a dive I am always excited to see one, especially one I haven’t seen before. I even once rejected doing another dive on “Manta alley” in favour of going nudibranch hunting instead. (And I’m quite fond of manta rays as well.) And after having read Tim’s book I’m now much better informed of how to find the nudibranchs. It’s obvious, can’t think why I didn’t think of it before, they are mostly on, or close to, their food. Find out what they like to eat and you’re half way there. Or if you see their ribbons of eggs, they are often close by.
The book includes 171 exquisite photographs of nudibranchs and other sea-slugs taken in the Irish Sea. It is not only a beautiful identification guide but also offers a broad introduction to the world of nudibranchs. Don’t be misled by the title Nudibranchs and Sea-slugs of the Isle of Man – it is useful both for anyone diving in the British Isles and for those elsewhere who are fascinated with the animals. All the photos, though, were taken in the Isle of Man and referenced by dive site.
It’s absolutely great for flicking through to identify what you’ve just seen though, with a large photo on the right hand page and the description on the left.
Disclaimer, Tim Nicholson is an old friend of mine – we learnt to dive in the same dive club. Many congratulations to Tim on this beautiful book. And if you are at all interested in nudibranchs – buy it.
Tim Nicholson (2022) Nudibranchs and Sea-slugs of the Isle of Man. Drinking Dragon Publications ISBN: 978-2-1-7391354-0-9
PS – And the difference between nudibranchs and sea slugs? Sea slug is the common name for any marine gastropod without a visible shell (slug-like rather than the snail-like) including sea hares, sapsucking slugs, headshield slugs and nudibranchs. A nudibranch is one type of gastropod among many.
"Sloping reef with hammerhead feeding stations. Aside from hammerheads, Galapagos and silky sharks and a resident population of very friends dolphins. Not to mention the passing whale shark"
Tell us about your favourite dive site - email@example.com.
Where are all the manta rays?
Shark fin trade regulated at last in landmark decision
Seventy years of tunas, billfishes and sharks as sentinels of global ocean health
Carbon offsets: A key tool for climate action, or a license to emit?
Scientists discover world's largest seagrass forest - by strapping cameras to sharks
A Warming Sea Is Forming Crystals and Belching CO2
Corals can help other corals to fight disease
Why I'm crying over spilt milk
SCUBA News is licensed under a Creative Commons Attribution 4.0 Unported License. This means we are happy for you to reuse our material for both commercial and non-commercial use as long as you: credit the name of the author, link back to the SCUBA Travel website and say if you have made any changes. Some of the photos though, might be copyright the photographer. If in doubt please get in touch.
Photo credits: Tim Nicholson, Jill Studholme, Kristin Riser, Jianye Sui
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