SCUBA News 230
(ISSN 1476-8011)
27 July 2019
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
SCUBA News (ISSN 1476-8011)
Issue 230 - August 2019
https://www.scubatravel.co.uk
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Welcome to SCUBA News. If you'd like to tell us about your diving holiday, or send us some photos, please do - email news@scubatravel.co.uk.
You can download a pdf version here.
Contents:
What's new at SCUBA Travel?
Letters
Featured Liveaboard - The Phinisi
Creature of the Month: Golden Trevally
Diving news from around the World
What's New at SCUBA Travel?
Remote; very remote. Home of the wrecks of Bikini Atoll including the Saratoga - voted one of the best wreck dives in the world. Also fabulous walls and reefs, and part of the biggest shark sanctuary in the world.
| |
There is some incredible diving in Mozambique. The Bazaruto archipelago has been a protected area since 1971. Here you can find dugongs, dolphins, whales and turtles. In Tofo, Inhambane you can see whale sharks and manta rays. Nacala to the north of Mozambique is a beautiful area with a great diversity of sealife and the Quirimbas National Park lies along the north east of the country. | |
Portugal, Madeira and the Azores As well as the diving around mainland Portugal, there is splendid diving in the Azores and Madeira archipelagos which sit way out in the Atlantic.Read More… | |
Letters
San Andres, Colombia
I just came back from a week on San Andres island staying at the camera and resorts. San Andres has some of the best diving I have done around the world - the Decamaron has multiple dive shops and very well educated and trained crews. There are many great dive sites from beginning open water diving all the way up to advanced and technical dives. I will definitely be returning.
James
More on diving San Andres
Cave Diving Course, Mexico
I did a cave diving course (cavern to full cave) plus sidemount training with Eric who owns Beyond Diving and this was the best, yet hardest course I have ever taken. Extremely rewarding and I feel super proud to have done this course. I don't think I could have picked a better instructor to do my training with. While the courses are not cheap, they shouldn't be. I think I got exactly what I paid for, if not more.
Tom Janesky, USA
More on diving Mexico's Cenotes
Featured Liveaboard - The Phinisi
Save 20% on Diving Thailand on the classic Phinisi schooner
Special offers in November and December - a good time to dive Thailand's best sites.
Creature of the Month: Golden Trevally, Gnathanodon speciosus
Young Golden Trevally are strikingly coloured, their gold and black striped garb showing from where their name comes. These young fish like to seek out large animals like sharks, groupers and dugongs for protection, acting as pilot fish. Sometimes they make a mistake and decide that a diver is the perfect companion. They will hover close to the tank for the entirety of a dive and until the diver finally has to say goodbye and emerge from the water, leaving the fish to swim quickly back to the relative safety of the reef to wait for another passing prospect.
Juvenile Golden Trevally with Diver. Photo credit Jill Studholme.
Some young trevally prefer to live as symbionts among the tentacles of jellyfish. When not following larger animals, or living in a jellyfish, the fish shoal together.
Juvenile Golden Trevally. Photo credit Jill Studholme.
Golden Trevally live throughout the Indo-Pacific from the Red Sea to Baja California and South Africa. When mature they grow as long as 120 cm. You see them in deep lagoons and seaward reefs. They root about in the sand for invertebrates and fishes, the mouth forming a tube to suck up their food.
Adult Golden Trevally. Photo credit Kare Kare (CC BY 3.0).
Their scientific name, Gnathanodon speciosus, comes from the Greek - Gnathos which means jaw and odous which means teeth. Actually, the adults have no teeth at all. Speciosus is from the Latin meaning showy. This species is the only one in the Gnathanodon genus. The Golden Trevally has many other common names, including Golden pilot jack.
Shoal of sub-adult Golden Trevally. Photo credit Laszlo Ilyes (CC BY 2.0).
The Trevally family (Carangidae) contains around 140 species. Many have a metallic sheen on their skin, caused by numerous mirror-like platelets of guanine crystals which reflect light. Normally trevally hunt in schools, circling smaller fish and gradually tightening the circle - catching any fish that tries to escape. Our adult Golden Trevally snuffling about in the sand is an exception.
Juvenile Golden Trevally with Dugong. Photo credit Suzanne Challoner.
Class: Actinopterygii > Order: Perciformes > Family: Carangidae > Genus: Gnathanodon > Speicies: Gnathanodon speciosus
References and Further Reading:
Coral Reef Guide Red Sea Reef, Ewald Lieske and Robert MyersRed Sea Reef Guide, Helmut Debelius
Diving News From Around the World
Our round up of the best underwater news stories of the past month. For breaking news see our Twitter page or RSS feed
Male-to-female sex change happens first in the brain, in clownfish at least
| |
Blue sharks use eddies for fast track to food
| |
Industrial fishing behind plummeting shark numbers
| |
Where did all the cod go? Fishing crisis in the North Sea
| |
Researchers find depleted seamounts near Hawaii recovering after decades of federal protection
| |
Japanese Whaling Is Not the Greatest Threat to Whale Conservation
| |
Whales older than Moby Dick
|
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, Kare Kare, Laszlo Ilyes, Suzanne Challoner
Previous editions of SCUBA News are archived at https://www.scubatravel.co.uk/news.html
SUBSCRIBING AND UNSUBSCRIBING
Visit [UNSUBSCRIBE] and add or remove your e-mail
address. To change whether your receive the newsletter
in text or HTML (with pictures) format visit [PREFERENCES]
ADVERTISING
Should you wish to advertise in SCUBA News, please
see the special offers at
https://www.scubatravel.co.uk/newsad.html
Other advertising opportunities are at
https://www.scubatravel.co.uk/advertising.html
CONTACTING THE EDITOR
Please send your letters or press releases to:
Jill Studholme
SCUBA News
The Cliff
DE6 2HR
UK
news@scubatravel.co.uk
PUBLISHER
SCUBA Travel, 5 Loxford Court, Hulme, Manchester, M15 6AF, UK
Subscribe To SCUBA News
Our newsletter, SCUBA News (ISSN 1476-8011), is absolutely free. It is a monthly publication, delivered by e-mail. To receive your copy fill in your details below. We will never pass your e-mail address to any third parties, or send you unsolicited e-mail.
To receive your copy fill in your details below. We will never pass your e-mail address to any third parties, or send you unsolicited e-mail.
You will receive an e-mail confirming your subscription. If you don't receive this you may have entered your e-mail address incorrectly - revisit this page and re-subscribe.
Write to SCUBA News
We love hearing from you: send us any news, dive write ups, reviews or comments