Welcome to the first issue of SCUBA News in 2019. I wish you all good diving for the rest of the year.
You can download a pdf version of SCUBA News here.
Featured Liveaboard - Blueforce 3
Photo Workshop in the Red Sea
Book a space on a special trip 20-28 July, 2019 and during this week, Juanjo Saez will help you discover, learn and improve your knowledge and skill in underwater photography
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Creature of the Month: Dendronotus Nudibranch
From the 1930s until 1998 these two nudibranchs were thought to be the same species: Dendronotus frondosus.
However, genetic analysis by M. Tholleson suggested that the two colour forms were distinct species and so he resurrected an old name Dendronotus lacteus for the white one.
Not difficult to tell apart you might think, but D. frondosus comes in many colours.
At first all the colour-forms were all thought to be independent species, then all the same species, and now some the same and some different.
In 2017 a third species of Dendronotus was identified, Dendronotus europaeus. Like D. frondosus and D. lacteus this nudibranch is common in shallow waters in northern seas.
Dendronotus frondosus means leafy black tree. The nudibranch feeds on hydroids and from them obtains nematocyst stinging cells which it uses for defence from predators.
The photos were taken in the Isle of Man by Tim Nicholson. The nudibranchs are found in the British Isles, on both the Atlantic and Pacific coasts of the United States and Canada, northwards into the Arctic and south as far as France.
Our round up of the best underwater news stories of the past month. For breaking news see our Twitter page or RSS feed
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
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