SHARPNOSE PUFFER FISH: BAHAMAS REEF FISH (47)


Sharpnose Puffer Fish (Melinda Riger / G B Scuba)

SHARPNOSE PUFFER FISH: BAHAMAS REEF FISH (47)

It’s more than 4 years since I last wrote about these intriguing creatures and their endearing ways. It’s time for another look, with a new batch of great photos too. This is a species that lends itself to the ‘Fun Fact’ treatment, a method that tells you at least as much as you probably need – or want – to know about puffers. The message to take away is, best not to handle one – let alone eat one – unless you know exactly what you are doing…

Sharpnose Puffer Fish (Melinda Riger / G B Scuba)

10 PUFFER FISH FACTS TO ASTONISH YOUR FAMILY & FRIENDS

1. Puffers can inflate their bodies in an instant by ingesting huge amounts of water and becoming water-filled balloons. Then their tiny spines stick out. 

2. They need a startling form of defence (or ‘piscatorial superpower’ Linnaeus 1763*) like this because they can’t swim very well to escape from predators: it’s surprising and intimidating – and it also makes them hard to eat.

3. However, a persistent predator undeterred by the trick will find that the puffer contains a toxin (tetrodotoxin TTX) that is said to be ‘1,200 times stronger than cyanide’. One puffer fish has enough toxin to kill up to 30 humans (National Geographic).

Sharpnose Puffer Fish (Melinda Riger / G B Scuba)

4. Notwithstanding the risks, selected parts of a puffer fish are a delicacy in some cultures (known as ‘fugu’ in Japan). Specially trained chefs are used to avoid mass deaths among diners. The insurance premiums must be huge.

5. Sharks are thought to be the only species immune to the puffer fish, and are not much bothered by a small fish that can blow itself up.

6. Puffers have skin, not scales; most have toxic fins or spines of some sort, besides toxic innards. Bright coloured kinds are likely to be more toxic than their duller cousins. This warning colouration in creatures is known as aposematism.

Sharpnose Puffer Fish (Melinda Riger / G B Scuba)

7. It’s worth finding out what an uninflated puffer looks like before you try to pet a random passing fish and have a toxic encounter. There is as yet no known antidote.

8. In all, there are more than a hundred puffer species in the world, all found where there are warm shallow waters. At least 3 main species – sharpnose, band-tail and chequered – are found in the Bahamas.

Sharpnose Puffer Fish (Melinda Riger / G B Scuba)

9. Some puffer species are not toxic at all; and some – especially in Pacific waters – are far more toxic than others. That’s the region where they are treated as a delicacy.

10. I’ve checked several research papers but I can’t find an evaluation of the relative toxicity as between the Bahamas puffer species. However it’s clear that the sharpnose is certainly not one play with. Take care!

Q. SO WHAT DOES AN INFLATED PUFFER LOOK LIKE? A. THIS!

Brian Lockwood took his life in his hands to get this fantastic shot…Sharpnose Puffer Fish (Brian Lockwood)

* Not really

RELATED POST: PORCUPINE FISH

Photo Credits: All puffer fish taken by Melinda Riger of Grand Bahama Scuba except for the photo of an inflated one from recent Abaco permanent resident Brian Lockwood

OCTOPUSES: IN THEIR ELEMENT


Octopus, Bahamas (Melinda Riger / Grand Bahama Scuba)

OCTOPUSES: IN THEIR ELEMENT

We haven’t seen many octopuses in these parts for quite a while. Time to put that right. The seas of the Bahamas teem with many many marine species, but few are as fascinating or indeed versatile as the octopus. Don’t take my word for it, just watch ‘Finding Dory’ to see how amazing Hank the… [what’s that, Skippy? It’s fiction?]. As you were. That these extraordinary creatures even exist let alone thrive in our waters is a truly wonderful thing. Here are a few to admire – or in the case of the one below, to admire you.

‘Here’s lookin’ at you…’Octopus, Bahamas (Melinda Riger / Grand Bahama Scuba)Octopus, Bahamas (Melinda Riger / Grand Bahama Scuba)Octopus, Bahamas (Melinda Riger / Grand Bahama Scuba)

You can find out some more about octopuses – including the correct plural for ‘octopus’ – by clicking the links below. More importantly, you’ll see more of them too.

THE PLURAL OF OCTOPUS & RELATED CEPHALOPOD MYSTERIES

MARINE BAGPIPES FILLED WITH INK

OCTOPUSES: WORTH LEARNING TO SCUBA FOR

Octopus, Bahamas (Adam Rees / Scuba Works)

All octopedal photos: thanks to Melinda Riger / Grand Bahama Scuba (1 – 4) and Adam Rees / Scuba Works (5)

QUEEN ANGELFISH: BAHAMAS REEF FISH (46)


Queen Angelfish, Bahamas (Melinda Riger / Grand Bahama Scuba)

QUEEN ANGELFISH: BAHAMAS REEF FISH (46)

The Queen Angelfish Holacanthus ciliarisis is without doubt one of the most beautiful of all reef fishes in the Bahamas – and the competition is very strong. I have posted about them before, but to my surprise not for nearly 5 years. Too long: here are some much more recent photographs of adults and cute juveniles.

Queen Angelfish, Bahamas (Melinda Riger / Grand Bahama Scuba)Queen Angelfish, Bahamas (Melinda Riger / Grand Bahama Scuba)

The bright colours, the pouty expressions, the appealing poses – these fish are true Beauty Queens. And helpfully, they are unlikely to be mistaken for any other fish species.

Queen Angelfish, Bahamas (Melinda Riger / Grand Bahama Scuba)

TEENAGE QUEEN ANGELFISHQueen Angelfish (Juv), Bahamas (Melinda Riger / Grand Bahama Scuba)

JUVENILE QUEEN ANGELFISHQueen Angelfish (Juvenile), Bahamas (Melinda Riger / Grand Bahama Scuba) Queen Angelfish (Juvenile), Bahamas (Melinda Riger / Grand Bahama Scuba)

Photo Credit: ©Melinda Riger (Grand Bahama Scuba), with thanks as ever

FLORAL CORAL: REEF GARDENS IN THE BAHAMAS


Reef Corals, Bahamas (Melinda Riger / G B Scuba)

FLORAL CORAL: REEF GARDENS IN THE BAHAMAS

Like many of the blues musicians who covered Robert Johnson’s originals, we got ramblin’ on our minds. Specifically to ‘Delphi East’ in Ireland, thus stupidly exchanging 82F sunshine in southern UK for 46F rain in the Emerald Isle. Good for the fishing, if nothing else… So (always remembering that corals are actually creatures and not plants) here’s a bouquet of coral to be going on with until we next meet with wifi!

Reef Corals, Bahamas (Melinda Riger / G B Scuba)Reef Corals, Bahamas (Melinda Riger / G B Scuba)Reef Corals, Bahamas (Melinda Riger / G B Scuba)Reef Corals, Bahamas (Melinda Riger / G B Scuba)Reef Corals, Bahamas (Melinda Riger / G B Scuba)Reef Corals, Bahamas (Melinda Riger / G B Scuba)

OPTIONAL MUSICAL RAMBLING

Robert Johnson’s output – a meagre 29 songs in all – formed the bedrock for later bluesmen and the blues / rock crossovers that followed. They mined Johnson’s talent and formed their own new material from it. Here’s the original – you’ve probably heard it or variations of it with different names, a thousand times – some good, some bad, most so-so. 

Entire coral pot pourri by Melinda Riger / Grand Bahama Scuba

‘CURIOUS GEORGE’ THE INQUISITIVE BLACK GROUPER


Black Grouper Bahamas (Curious George) - Melinda Riger / GB Scuba

‘CURIOUS GEORGE’ THE INQUISITIVE BLACK GROUPER

Fish, like humans, have a wide variety of temperaments, or so it seems. Resorting to anthropomorphic analysis of animal behaviour is a favourite pastime for humans. Who really knows if a creature is actually feeling shy or confident or playful or aggressive or indeed inquisitive. Often it just seems that way and we are happy to categorise dolphins as playful, sharks as vicious, angelfish as serene, small darting fish as timid and so on. 

Black Grouper Bahamas (Curious George) - Melinda Riger / GB Scuba

Occasionally a creature displays a ‘human’ characteristic that seems undeniable. One such is Curious George. He has become used to the divers around the reef where he lives, and greets them. He enjoys the photography sessions and the equipment, even though they may be for recording other fish. He demonstrates inquisitiveness for the strange-looking black-suited creatures that visit his patch. Like many groupers, he likes to be gently patted and stroked. 

Black Grouper Bahamas (Curious George) - Melinda Riger / GB Scuba

All this curiosity and friendliness evidences a benign interspecies relationship of symbiotic mutualism, through which both species (man and fish) benefit from the interaction. The mutually beneficial feeling might in broad terms be described as ‘pleasure’.

Black Grouper Bahamas (Curious George) - Melinda Riger / GB Scuba

Or maybe I am just indulging in a bit of over-anthropomorphisation (if there is such a word)…

All photos by one half of the symbiotic mutualism here, Melinda Riger (Grand Bahama Scuba)

BAHAMAS REEF FISH (45) THREESPOT DAMSELFISH


Threespot Damselfish (Melinda Riger / GB Scuba)

BAHAMAS REEF FISH (45) THREESPOT DAMSELFISH

The threespot damselfish Stegastes planifrons is one of several damselfish types found in the Bahamas and more generally in the western Atlantic. As with so many reef species, there is a marked difference in coloration between juveniles (bright yellow) and darker-hued adults (above).

Threespot Damselfish (Melinda Riger / GB Scuba)Threespot Damselfish (Melinda Riger / GB Scuba)

These are bony little creatures, equipped with both spines and ‘soft rays’ on some of their fins. This perhaps make them unappealing to potential predators; and maybe the very brightness and ‘hi-viz’ of the juveniles is aposematic, a coloration thats acts as a warning or repellent to potential predators.

Threespot Damselfish (Melinda Riger / GB Scuba)

On the reef it seems threespots favour staghorn coral as a daytime base. Their diet is mainly seaweed, with small molluscs, gastropods and worms for variety. At night they retire to crevices and caves.

Threespot Damselfish (Melinda Riger / GB Scuba)

Adults are, for such small fish, vigorously protective of their territories. They will chase and nip intruders into their domains, even far larger creatures (up to and including humans).

Threespot Damselfish (Melinda Riger / GB Scuba)

A breeding pair will both be involved in egg care. Once the female has laid her eggs, they adhere to the lower reef and seabed. The male guards them and rather sweetly fans them with his fins to keep them oxygenated. And then another generation hatches and the threespot life cycle repeats.

Threespot Damselfish (Melinda Riger / GB Scuba)

Credits: All fantastic photos by Melinda Riger / Grand Bahama Scuba

SHARKS! APEX PREDATORS IN THE BAHAMAS


Sharks in the Bahamas (Melinda Riger / Grand Bahama Scuba)

SHARKS! APEX PREDATORS IN THE BAHAMAS

Immersion in current affairs these days brings inevitable acquaintance with sharks of various kinds, and all best avoided. Let’s have a look the real thing, the apex marine predators that in the Bahamas are all around you once you leave the safety of the shore. I haven’t featured them for ages, and it’s always a pleasure – a slight thrill, even.

Sharks in the Bahamas (Melinda Riger / Grand Bahama Scuba)Sharks in the Bahamas (Melinda Riger / Grand Bahama Scuba)

I don’t do scuba, indeed my swimming would easily be outclassed by a competent four-year old. But I see these creatures when I’m out fishing; or as they hang in the breaking waves off the Delphi beach, watching intently for a meal.

Sharks in the Bahamas (Melinda Riger / Grand Bahama Scuba)

We watch them (and stingrays) from the balcony as they lazily make their way round the margins of the wide bay, from little ‘uns to (recently) a huge bull shark. We watch as, when someone is in the water, they change course slightly to pass by them. So far, anyway…

Feeding sharksSharks feeding in the Bahamas (Melinda Riger / Grand Bahama Scuba)

The one that got away… (a sad sight)Sharks in the Bahamas (Melinda Riger / Grand Bahama Scuba)

I once took a rather primitive underwater camera with me while snorkelling in Fowl Cays National Park. This was several years ago, when I believed a cheap 2mb camera might turn me into one of the Blue Planet team. I was wrong. The shark I saw, apparently some 20 miles away (when I examined the image) – well, that’s its tail, top left…

Sharks in the Bahamas (Melinda Riger / Grand Bahama Scuba)Sharks in the Bahamas (Melinda Riger / Grand Bahama Scuba)

Just to look at these images is to understand that when you are in the sea, you are in the sharks’ environment. They are the masters of it. They have their rules, and they are not much interested in you… unless you break them. Or so the theory goes.

Sharks in the Bahamas (Melinda Riger / Grand Bahama Scuba)Sharks in the Bahamas (Melinda Riger / Grand Bahama Scuba)

This fine shark below exemplifies the power and the menace of the shark. A creature to be admired, but also to be respected.

Sharks in the Bahamas (Melinda Riger / Grand Bahama Scuba)

All fantastic photos: Melinda Riger / Grand Bahama Scuba