“CALLING ELVIS” (THE SQUIRRELFISH, NOT THE MAN)


Squirrelfish Elvis ©Melinda Riger @ G B Scuba

“CALLING ELVIS” (THE SQUIRRELFISH, NOT THE MAN)

How proud The King would be to know that his name lives on in the form of an attractive though sadly unmusical Bahamian squirrelfish. This little guy is at least 5 years old. What is more, he has lived at the same address all that time, defending it against usurpers and protecting himself from predators in its safe depths. Here is the loveable little Elvis photographed at home between 2012 and 2016 (header image), the master of his own underwater Graceland…

Squirrelfish (%22Elvis%22) ©Melinda Riger GB ScubaElvis the Squirrelfish ©Melinda Riger GB Scuba Squirrelfish ©Melinda Riger @ GB Scuba Squirrelfish ©Melinda Riger @ G B Scuba

The reason that Elvis has such large eyes is that these fish are mostly nocturnal, and (apart from when Melinda is out with her camera), he and his friends spend most of the day either at home, or in crevices, small rock caves, or under ledges. However, here are a couple of shots of Elvis out and about, enjoying some quality time among the corals.

Squirrelfish (Elvis) ©Melinda Riger @ Grand Bahama ScubaSquirrel Fish ©Melinda Riger @ G B Scuba

ROLLING HARBOUR MUSICAL DIGRESSION

I so wanted to add a specific Elvis catalogue ‘Musical Digression’, but try as I might, there is no title in The King’s discography that has any potential for finny nuance or piscine pun value. However, here’s a track from the now tragically unhip Dire Straits on their follow-up album to the phenomenal ‘Brothers-in-Arms’, the much under-rated ‘On Every Street’. I give you… Calling Elvis, a song that cunningly contains as many titles of Presley hits as anyone could ever wish for.

All images: Melinda Riger at Grand Bahama Scuba; cartoon from a sequence on the excellent BCCR Defenses page – learn about camouflage and other fishy self-protection techniques

Nocturnal squirrelfish checks out a parrotfish’s sleeping arrangementscamoSquirrWparrot01

BLUE CHROMIS: BAHAMAS REEF FISH (29)


Blue Chromis & Coral ©Melinda Riger @ GB Scuba

BLUE CHROMIS: BAHAMAS REEF FISH (29)

The little blue chromis Chromis cyanea will be instantly familiar to any snorkeler or scuba diver on the coral reefs of the Bahamas. These ever-present small fish – 6 inches long at most – are remarkable for their iridescent deep blue colour that flashes as they dart in and out of the coral and anemones of the reef.

Blue Chromis ©Melinda Riger @ G B Scuba

Although at first sight  this chromis species – one of many – looks blue all over, adults have a black dorsal stripe and black edging to their fins. They make colourful additions to aquariums, though to my mind they look far more attractive nosing about the reefs foraging for the zooplankton upon which they feed (see header image for details…)

Blue Chromis ©Melinda Riger @ GB Scuba

The blue chromis was the second fish species I encountered on my first ever reef dive, at Fowl Cay Marine Preserve with Kay Politano. The first fish was the endearingly inquisitive sergeant major with its smart black and yellow stripes which came right up to my googles to eyeball me. I loved that, even though my pitiful swimming technique meant that I had plenty of other distractions, not least remembering to breathe. Air, that is, rather than water.

Blue Chromis ©Melinda Riger @ GB Scuba

Chromis_cyanea_(blue_chromis)_(San_Salvador_Island,_Bahamas)

SO JUST HOW BIG ARE THESE FISH, COMPARED, SAY, TO A BLUE TANG?

Blue Tang with blue chromis in its wakeBlue Tang with Blue Chromis © Melinda Riger @GB Scuba copy

All photos Melinda Riger of Grand Bahama Scube, except the penultimate by James St John, taken in San Salvador

 

WTF? (WHAT’S THAT FISH) (6): THE SAND DIVER


Sand Divers Bahamas ©Melinda Riger @ G B Scuba

WTF? (WHAT’S THAT FISH) (6): THE SAND DIVER

Time for another in the WTF? series, featuring weird (begging their pardons) or not very fish-like fish. The Sand Diver Synodus intermedius is a type of lizardfish found in subtropical waters and often around coral reefs. They can grow up to about 18 inches long and a prime specimen might weigh a couple of pounds. The markings are quite variable but one common characteristic seems to be a tendency to look somewhat down in the mouth; and to possess jaws full of tiny sharp teeth.

Sand Diver - ©Melinda Riger @ GB Scuba

Sand divers have two rows of teeth on their upper jaw and three rows on their lower jaw. Not content with that, they also have rows of teeth on the palate and tongue. Were they 50 times the size, they would be truly awesome.

Sand Diver ©Melinda Riger @ G B Scuba

The rather primitive appearance of the sand diver is explicable from fossils, which show that their forbears  were active in the Jurassic / Cretacean periods.

Sand Diver ©Melinda Riger @ GB Scuba

HOW DO THEY GET THEIR NAME?

Sand divers often bury themselves in the sand with only their head showing. They are so-called ‘ambush predators’, and burial is one method they use. Another is simply to lie on the sandy bottom, or on reef surfaces and wait for passing prey. Their colouring provides very good camouflage.Sand Diver Fish

WHAT’S ON A SAND DIVER MENU?

A good mix of small reef fishes. Bar jacks, blue chromis, wrasses, fairy basslets, small grunts and so forth. At their own level they are quite fearsome predators.

Sand Diver © Melinda Riger @ Grand Bahama Scuba

ARE THEY ON THE HUMAN MENU?

Well, I knew someone would ask that, so I carried out a search. The answer seems to be no. I have found nothing to suggest that they are edible, or that anyone has tried (or if they have, survived to tell the tale). Incidentally, the best way to find out if something is edible by humans is to search for a recipe. There are no sand diver recipes.

Sand Diver ©Fred Riger @ G B Scuba

All photos: Melinda Riger of Grand Bahama Scuba

WTF? (WHAT’S THAT FISH) (5): THE FILEFISH


Scrawled Filefish ©Melinda Riger @ GBS

WTF? (WHAT’S THAT FISH) 5: THE FILEFISH

The jocularly-named WTF? series is designed to shed an underwater spotlight on some of the odder denizens of the coral reefs and surrounding waters. I don’t want to earn a reputation for being ‘lookist’, but frankly the appearance of some of these creatures – I give you BATFISH or FROGFISH or REMORAS as examples – is baffling. The filefish group is not as extreme as some in the downright weird category, but if you see one you might just find yourself muttering into your facemask “wtf?”

Scrawled Filefish ©Melinda Riger @ G B Scuba

Filefish (Monacanthidae) are found in tropical and subtropical oceans worldwide. They are related to triggerfish, trunkfish and pufferfish, and have regional names that include leatherjacket, foolfish, and shingle. There are more than 100 species of filefish, of which only a few are found in Bahamian waters. The species featured here are a mix of scrawled, white-spotted and orange-spotted filefish.

Filefish White-spotted ©Melinda Riger @G B Scuba

HOW DID THEY GET THE NAME?

In the image above, you can just see a flattened spine on top, above the eye and pointing backwards. This is the ‘retracted’ state. There is a small secondary spine that serves to prop up the main spine when it is in the upright position. This is it seems, the file – although the Greek-derived family name Monacanthidae literally means ‘one thorn’. So why isn’t it a thornfish, you may well ask. And I may well not respond.

This filefish’s ‘spine’ seems to have flopped over to one sideWhite Spotted File fish

These fish have snouts with small mouths and specialized teeth with an inner and outer set on each jaw. They are to an extent shapeshifters, and can quickly make themselves appear larger for defensive purposes. In some individual species, there are marked differences in body shape and coloration.

An orange-spotted filefish with its spine erect, making for a cave – a place of safetyFilefish, Orange Spotted ©Melinda Riger @ GB Scuba

The fins of a filefish are small, and they are rather sedate swimmers. Sometimes they simply like to drift with their heads pointed downwards, eyeing patches of seagrass or seaweed for prey. Some species are largely vegetarian. Others eat small invertebrates. Some even feed on corals. Their predators – especially  the juveniles –  include tuna and dolphins (mahi-mahi).
ADDITION Capt Rick Guest has helpfully expanded on juvenile filefish: “The juveniles hang under sea weed and flotsam eating small shrimps and crabs there. They, in turn become food for Mahi and other pelagic fish. The main thing with these guys is that the bigger they are, the more likely they are to be Ciguateric”.
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At his suggestion I will write a post about the  problem of the Ciguatera disease when I have had some time to do the research.

Scrawled File Fish

ARE THEY EDIBLE?

Good question. The answer, broadly is yes, though I don’t know if that applies to all species of filefish. They are certainly eaten in large quantities in the Far East. I don’t know about the Bahamas or the wider Caribbean. If anyone does, could you very kindly add a comment to this post. Recipes welcome!

Scrawled Filefish

All photos: Melinda Riger of Grand Bahama Scuba

ATLANTIC SPADEFISH: BAHAMAS REEF FISH (28)


Atlantic Spadefish ©Melinda Riger @ G B Scuba copy 2

ATLANTIC SPADEFISH: BAHAMAS REEF FISH (28)

The Atlantic spadefish looks very much like an angelfish, and indeed it is called that – or ‘white angelfish’ – in some places. Actually, it has quite a collection of colloquial names of which ‘moonfish’ is the most attractive sounding. It is not a true angelfish, however, and despite appearances it has a kinship with the weird and wonderful BATFISH.

Atlantic Spadefish ©Melinda Riger @GBS

Unlike the batfish, the spadefish is demonstrably fishlike AND edible. They can grow up to 3 foot long and have become a popular gamefish for three good reasons: they are abundant; they fight hard; and they are dinner. The perfect combination.

Atlantic Spadefish ©Melinda Riger @ G B Scuba copy

All photos: Melinda Riger of Grand Bahama Scuba, with thanks

Atlantic Spadefish ©Melinda Riger @ G B Scuba

“OPHELIA READY FOR HAMLET”: BAHAMAS REEF FISH (27)


Indigo Hamlet ©Melinda Riger @G B Scuba

“OPHELIA READY FOR HAMLET”: BAHAMAS REEF FISH (27)

It’s a couple of years since I originally posted about the various species of HAMLET that inhabit the reefs of the Bahamas. I feel you are (geddit?) ready to see some more of these colourful little fish. Last time out, I worked over the Shakespearean possibilities quite thoroughly so I’ll spare you a repeat (apart from the inevitable title pun). If you really want to revisit the famous Hamlet Cigar ad or hear the theme music (Bach’s Air on a G String, shamelessly ‘borrowed’ by Procol Harum for ‘A Whiter Shade of Pale), you’ll find them HERE. Or just move straight on to 5 related but very different looking Hamlets cruising the Bahamas coral reefs.

INDIGO HAMLETIndigo Hamlet ©Melinda Riger@ G B Scuba

BARRED HAMLETBarred Hamlet ©Melinda Riger @ GB Scuba Barred Hamlet ©Melinda Riger @ Grand Bahama Scuba

BLACK HAMLETBlack Hamlet ©Melinda Riger @ GB Scuba

SHY HAMLETShy Hamlet ©Melinda Riger @ GB Scuba

BUTTER HAMLETButter Hamlet ©Melinda Riger @ Grand Bahama Scuba

Credits: all photos Melinda Riger of Grand Bahama Scuba

CREOLE WRASSE: SHADES OF DEEP PURPLE…


Creole Wrasse ©Melinda Riger @ G B Scuba copy 4

CREOLE WRASSE: SHADES OF DEEP PURPLE…

The creole wrasse is a small wrasse species, with adult males reaching about 12 inches long. During its life, a creole wrasse changes colour significantly.  A juvenile is almost completely violet-purple. As it matures, it develops patches of yellow on the rear part of its body.

Creole Wrasse ©Melinda Riger @ G B Scuba copy 7

Creole wrasse are found throughout the tropical and subtropical waters of the western Atlantic from Florida south to Brazil. The habitat includes Bermuda, the Caribbean Sea, and the Gulf of Mexico.

Creole Wrasse ©Melinda Riger @ G B Scuba copy 5Creole Wrasse ©Melinda Riger @ G B Scuba copy 6

Creole wrasse are social fish that live in groups around coral reefs. They are found in shallow water, but may also be seen as deep as 100m. 

Creole Wrasse at a cleaning station ©Melinda Riger @ G B Scuba copy

The groups of wrasse feed on plankton, small jellyfish, pelagic TUNICATES, and invertebrate larvae. These fish are active in groups by day. At night each fish finds its own safe crevice in the reef to sleep.

Creole Wrasse School ©Melinda Riger @G B Scuba copy

ANYTHING ELSE WE NEED TO KNOW?

Yes indeed. Their intriguing breeding regime – how unlike our own dear species. The creole wrasse is a protogynous hermaphrodite.  The largest fish in a group is a dominant breeding male, while smaller fish remain female. If the dominant male dies, the largest female changes sex. The mature males congregate at leks to breed, at which they display and are approached by females before mating with them. [note: these leks are reminiscent of certain clubs in the less reputable parts of some towns and cities. Or so I am told]

Creole Wrasse Melinda Riger @ G B Scuba copy

It’s been a while since the last Rolling Harbour musical diversion, but the colour of this wrasse nudged my memory back to 1968 and DP’s first album (line-up Mk 1 of several hundred, or so it seems). Hence the post title. Anyone who remembers this ‘wasn’t there’. Anyone who doesn’t obviously wasn’t there either…

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I don’t think this guy thinks much of that. And quite right tooCreole Wrasse ©Melinda Riger @GBS copy

All phish photos by Melinda; DP cover borrowed from Am@z@n; MP3 moi