SCUBA News 232
20 October 2019
SCUBA News (ISSN 1476-8011)
Issue 232 - October 2019
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A fabulous dive in the Red Sea and one of the few places you see Oceanic Whitetip Sharks in shallow water, plus beautiful coral, resident turtle, dolphins swimming above and hammerheads in the blue.
Belize's most famous dive site is the Blue Hole, currently ranked one of the world's best dives. However, some people think that Belize has even better dives.
Featured Liveaboard - Tiger Blue
Photography trip in Raja Ampat
A special sailing teamed up with Jack Randall of National Geographic and Jenny Stock - award winning underwater photographer and documentary maker - sails 20 January 2020
Hi, I am from out of the UK and I have diving qualifications. I want to know which qualification is more acceptable in the UK?
BSAC and PADI are the most common qualifications in England, Wales and Northern Ireland. In Scotland the Scottish Sub Aqua Club qualification is also widely used.
A pretty little fish with pink splodges, the pixie hawkfish lives on reefs and in lagoons and between one and forty metres down. It likes to sit on small heads of hard corals or sometimes. They are more abundant on midshore and offshore reefs which tend to have healthier, intact coral communities. Coral cover is a good indicator of pixie hawkfish abundance.
Members of the hawkfish family have protrusible mouths which enables them to sit so still
Territorial males maintain a harem of females. Courtship occurs at dusk or early night.This occurs throughout the year in the deep tropics but in sub-tropical areas, such as the northern Red Sea, only in the summer. They make a short (up to 1 m), rapid ascent and then spawn.
If male hawkfish take on too many females, one of the two largest females will change sex and take over half of the harem, mating as a male. In some species if a new male hawkfish loses a few females to other harems and is challenged by a larger male, it will revert back to mating as a female instead of wasting precious energy fighting a losing battle.
The pixie hawkfish is also known as the coral hawkfish.
Class: Actinopterygii > Order: Perciformes > Family: Cirrhitidae
References and Further Reading:
Coral Reef Guide Red Sea, Ewald Lieske and Robert Myers
Cross Shelf Patterns in Habitat Selectivity of Hawkfish (Family: Cirrhitidae) in the Red Sea, Veronica Chaidez
Zoologger: Transgender fish perform reverse sex flip, New Scientist 6 January 2012
Egypt ups environmental standards to protect coral reefs
Love Whales? They Can Help Solve Climate Change
Right whale mothers whisper to their calves to avoid attracting predators
Coral gardeners slowly restore Jamaica's 'forest under the sea'
Top investment banks provide billions to expand fossil fuel industry
Big oil is selling dirty assets, but they aren't going away
Bahrain opens world's largest underwater theme park
Fish-derived bioplastic wins award for solving plastic problems
Malaysia to extend marine protected areas around Sabah
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Photo credits: Tim Nicholson, Jill Studholme, Clark Anderson/Aquaimages
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