SCUBA News 272
(ISSN 1476-8011)

SCUBA News (ISSN 1476-8011)
Issue 272 - March 2023

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What's New at SCUBA Travel?

Diver on the Kittiwake. Photo credit: DepositPhotos

Captivating diving in the Cayman Islands

From the wreck of the Kittiwake on Grand Cayman to the breathtaking Bloody Bay Wall on Little Cayman, these Caribbean islands have much to offer divers.

USS Liberty, Bali

Revealed: the World's best 100 Dives in 2023

The definitive list of the best dive sites on the planet. How many of them have you dived?

Coral in Croatia

Croatia Calling

With fab vis and many offshore islands, the diving in Croatia is very good.

10 Last Minute & Early-Bird Liveaboard Deals - Save up to 40%

From the solar eclipse in Raja Ampat to the historic Adelaar liveaboard with just 4 cabins. Plus Mexico, Maldives, Bahamas and the Red Sea. All splendid diving destinations.

  1. Aliikai, Indonesia, Raja Ampat Solar Eclipse, 15 - 27 April 2023 (12 nights), SAVE 20%, Price from EUR 6,677 per trip per person
  2. Blue Manta, Indonesia, Komodo - North & South, SAVE 10% on selected trips from May to August 2023 (6 or 7 nights), Price from USD 2,430 per trip per person
    * This offer is available for new individual bookings until the end of May 2023
  3. Rocio del Mar, Mexico, Socorro Islands, 06 - 15 May & 16 - 25 May 2023 (9 nights), SAVE 10%, Price from EUR 3,464 per trip per person
  4. Quino El Guardian, Mexico, Socorro Islands, Save 10% on selected trips in April and May 2023 (9 nights), Price from USD 3,150 per trip per person
  5. Discovery II (Samira), Egypt, North Wrecks and Ras Mohamed & Brothers, Daedalus, Elphinstone, 15 - 22 Apr 2023 & 29 Apr - 06 May 2023 (7 nights), SAVE 10%, Price from USD 890 per trip per person
  6. Discovery I (Amelia), Egypt, Brothers, Daedalus, Elphinstone, SAVE 10% on April 2023 trips, Price from USD 1,029 per trip per person
  7. Carpe Diem, Maldives, North Male - South Male - Vaavu - South Ari - North Male, 09 -16 Apr 2023 & 21 - 28 May 2023 (7nights), SAVE 15%, Price from EUR 1,550 per trip per person
  8. Aqua Cat, Bahamas(Tiger Beach), Weeklong Cruise, 16 - 23 December 2023 (7 nights), SAVE $500, Price from USD 2,695 per trip per person
  9. Sea Serpent Excellence, Egypt, Brothers, Daedalus and Elphinstone, 27 Apr - 04 May 2023 (7 nights), SAVE EUR 100, Price from EUR 1,349 per trip per person
  10. Adelaar, Indonesia, Cousteau's Nirvana (Maumere - Wakatobi - Bau Bau) & Komodo & Beyond, SAVE UP TO 40% on April 2023 departures (10 nights), Price from USD 2,974 per trip per person Historic liveaboard with just 4 cabins

The Ghost Goby (Pleurosicya micheli ) is our Creature of the Month

If you look carefully at this semi-translucent little fish you can see its organs. The ghost goby lives mainly on massive stony corals to around 30 m, in the Indo-Pacific including in the Red Sea.

Ghost goby in the Canyon, Dahab
Tiny ghost goby in Dahab, Red Sea. JS

Our ghost goby, P. micheli has red fluorescent eyes. This is probably to help them forage for their preferred food of miniscule crustaceans, as red fluorescence enhances visual contrast at depths below 10 m.

Ghost goby on coral
Ghost goby in the Red Sea on Porites coral. Tony Gibson/DepositPhotos

Also known as the stony coral ghostgoby, the fish lays its eggs on sea squirts. The female lays relatively few eggs but they are then guarded by the male against predators.

Ghost goby eggs on ascidian
Ghost goby guarding eggs. DepositPhotos

The family Gobiidae comprises at least 2000 species. More than half of these are found on coral reefs. Many coral reef gobies are capable of bi-directional sex change, sometimes more than once. Another adaptation which increases the potential number of offspring.

Ghost goby on coral
Ghost goby. DepositPhotos

Vertebrata > Osteichthyes > Teleostei > Gobiiformes > Gobiinae > Pleurosicya > Pleurosicya micheli


Microhabitats and ecomorphology of coral- and coral rock-associated gobiid fish (Teleostei: Gobiidae) in the northern Red Sea, Jurgen Herler. Marine Ecology 207

Meadows et al. Red fluorescence increases with depth in reef fishes, supporting a visual function, not UV protection, Proceedings of the Royal Society, 2014

Gobies on Coral Reefs. Chapter in The Biology of Gobies, R. A. Patzner et al (editors). Science Publishers, Jersey, British Isles, New Hampshire 2011

Diving news from around the World

Bikes on the thistlegorm

Sunken warships exceptionally good for coral reefs, Thistlegorm study finds
Scientists this month described the first investigation of sealife on the famous Thistlegorm shipwreck.

Dusky Gregory Farmer Fish

Algae-farming fish help coral reefs bounce back from bleaching events
The presence of territorial farmerfish that look after algae gardens seems to help branching corals recover after heat stress has bleached them

Seagrass meadow

Seagrass key to livelihoods and marine habitats
The United Nations this month declared a World Seagrass Day, recognizing their importance and creating awareness of this much-overlooked marine habitat.

Coral reef

Coral reefs in the tropical Pacific could survive into the 2060s, study finds
Some reefs increase their resilience to elevated temperatures by being built by corals that shuffle algal partners following ocean heatwaves

Orange roughy and anemones

Will new bottom trawling rules do enough to protect South Pacific seamounts?
Bottom trawling involves dragging heavy nets and trawl "doors" along the seabed that run roughshod over any organisms or structures in their path; scientists have compared it to clear-cutting a forest.

Blue Whale

Historic agreement to protect seas reached after decade of talks
The High Seas Treaty places 30% of the seas into protected areas by 2030, aiming to safeguard and recuperate marine nature. The agreement was reached just hours ago at UN headquarters in New York.

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Photo credits: Tim Nicholson, Jill Studholme, Kristin Riser, Jianye Sui

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