“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

BAHAMAS REEF CORAL: A COLOURFUL GALLERY


Orange Cup Coral ©Melinda Riger @ G B Scuba copy

BAHAMAS REEF CORAL:  A COLOURFUL GALLERY

The reefs of the northern Bahamas, as elsewhere in the world, are affected by two significant factors: climate change and pollution. Stepping carefully over the sharp pointy rocks of controversy, I’ve avoided the term ‘global warming’ and any associated implication that humans (oh, and methane from cows) are largely to blame for the first factor; but on any view, ocean pollution is the responsibility of mankind (and not even the cows). 

That said, an exploration of the reefs of Abaco or Grand Bahama will reveal not just the astounding variety of mobile marine life but also the plentiful and colourful static marine life – for example the beautiful and Christmassy orange cup coral in the header image. Here are some more corals from the reefs, with a mix of sponges added in. 

Giant Star Coral & Rope Sponge ©Melinda Riger @ GB Scuba copyCorals ©Melinda Riger @ G B Scuba copy 2Corals ©Melinda Riger @ GB Scuba copySea Fans & other corals ©Melinda Riger @ Grand Bahama Scuba copy

This rather intriguing photo shows a hermit crab’s conch home that presumably the occupant grew out of and left behind in the delicate coral branches as it went search of a more spacious shell dwelling.Coral & conch ex crab home 1380179_645156602172399_300806994_n copy

Credits: All these wonderful photos are by Melinda Riger of Grand Bahama Scuba; tendentious reef health observations are mine own…

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”.
220px-Coryphaena_hippurus
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

HAWKSBILL TURTLES: WONDERFUL… & CRITICALLY ENDANGERED


Hawksbill Turtle ©Virginia Cooper @ G B Scuba

HAWKSBILL TURTLES: WONDERFUL… & CRITICALLY ENDANGERED

Hawksbill Turtle ©Melinda Riger @ G B Scuba copy 3

Hawksbill turtles are found throughout the tropical waters of the Atlantic, Pacific, and Indian Oceans. They avoid deep waters, preferring coastlines where sponges are abundant and sandy nesting sites are within reach. They are normally found near reefs rich in the sponges they like to feed on. Hawksbills are omnivorous and will also eat molluscs, marine algae, crustaceans, sea urchins, fish, and jellyfish. 

Hawksbill Turtle Range (Nat Geo)map-hawksbill-turtle-160-cb1447865323

Turtle with Gray Angelfish ©Melinda Riger @ G B Scuba

WHY ARE HAWKSBILLS CRITICALLY ENDANGERED?

  1. Despite the protection of their shells, turtles are predated on by large fish, sharks, octopuses, and (unlawfully) humans.
  2. Hawksbills are slow breeders, mating only every 2 or 3 years, which is the first drawback to species survival.
  3. Having laid the resulting eggs on a beach, the female returns to the sea. The eggs hatch after a couple of months. Unless, of course, some creature – and that includes humans – has got to them first…
  4. Hatchlings are hugely vulnerable as they make their way from the nest site to the sea. However fast they scurry along, crabs and in particular flocks of gulls are faster. Also, they may have to negotiate impossible obstacles washed up onto the beach  (see below). The attrition rate of  tiny turtles at this stage is very considerable.

Hawksbill Turtle ©Melinda Riger @ GB Scuba copy

SO, HUMANS ARE BASICALLY IN THE CLEAR, RIGHT?

Humans can take most of the credit for the turtles plight leading to their IUCN ‘critically endangered’ listing, in these mostly illegal ways:

  • Killing adult turtles for food or…
  • …for their beautiful shells
  • Digging up turtle nesting sites to take the eggs as food
  • Catching turtles in fishing nets as unintended but often inevitable BYCATCH
  • Providing a rich stew of plastic, styrofoam & other dietary or physical hazards in the ocean
  • Degrading or destroying the nesting sites, & indeed the reefs on which turtles depend

A hatchling tries to clamber over beach rubbish to get to the seaTurtle traps - Melissa Maura copy

A straw is extracted from a turtle’s nostril (small pics on purpose – I spared you the long video)Turtle & straw 1 (Nathan Robinson : Chris Figgener) Turtle & straw 2 (Nathan Robinson : Chris Figgener) Turtle & straw 3 (Nathan Robinson : Chris Figgener)

This poor creature was found just in timeHawkbill Turtle Plastic breathecostarica copy

Assorted plastic effects (the turtle trapped in the beach chair was off Man-o-War Cay) Sea Turtle tied up in balloon string (Blair Witherington : NOAA) copyphoto copy 7 This turtle, which was found floating in North Man-O-War Channel, died as a direct result of being entangled in human trash(in this case, a lawn chair) copy IMG_1346 copy

PLEASE CAN WE GO BACK TO HAPPY PICTURES?

Healthy hawksbills happily living the northern Bahamas reef lifeHawksbill Turtle (m) (Melinda Riger @ G B Scuba) Hawksbill Turtle (flipper damage) ©Melinda Riger @ GB Scuba

RELATED POSTS

TURTLEY AMAZING

SEA TURTLE THREATS

BABY TURTLES WITH PHIL LANOUE

Hawksbill Turtle & photo ©Melinda Riger @ G B Scuba

Credits: Melinda Riger & Virginia Cooper of Grand Bahama Scuba for the main photos; Melissa Maura, Nathan Robinson, Friends of the Environment and other FB sharers for the small images; National Geographic for range chart and information

BAHAMAS MANATEES: GINA’S CALF NEEDS A NAME!


Gina the Bahamas Manatee (pregnant) Eleuthera (BMMRO)

Gina the Manatee, Eleuthera – expectant mother (BMMRO)

BAHAMAS MANATEES: GINA’S CALF NEEDS A NAME!

Earlier this year I posted the welcome news that Bahamas manatee Gina was beyond any doubt pregnant. You can read about it HERE. Gina has been living for some time in Eleutheran waters, under regular observation by the BMMRO. At the turn of the year, she was re-tagged in Harbour Island, Eleuthera, when her pregnancy was discovered. I promised to give an update and this is a perfect moment. Gina’s calf was safely born and is growing fast. The pair have spent a lot of time in and around Spanish Wells, Eleuthera. Recently they have begun to move further afield, and there have been several sightings with some great photos shared on FB and in particular on Felice Leanne Knowles’s terrific BAHAMAS MANATEE CLUB page, some of which are included here duly credited.

Gina the Bahamas Manatee (pregnant) Eleuthera (BMMRO)

Gina’s calf is currently just called “Gina’s calf”. Its gender is unknown, and it will take a close inspection from below to ascertain from its… I don’t have to go on with this, do I? The point being that the chosen name will need to be unisex because it may take a while until there is sufficient development of the… I don’t have to go on with this either, do I? Let’s see the nameless calf at once! Details of the competition at the end of this post…

Gina with her newborn calf, July 27 (BMMRO) (note apparent prop scars on Gina)11209341_1012183408800885_310154952620912454_n

Spanish Wells, October 26 (π Junea Pinder / BMMRO) Gina the Bahamas manatee and her calf (Junea Pinder / BMMRO) Gina the Bahamas manatee and her calf (Junea Pinder / BMMRO)

Gregory Town, November 5 (Lynne Hirzel / BMMRO)12188935_10156306821645195_3509772562942760375_n 12219637_10156306821330195_1471887362053804519_n

Hatchet Bay, November 13    (π Jeffrey Louis / BMMRO)  10425501_1042928762405755_7163144254688618862_n 12108239_1042928735739091_6064773734031487371_n

November 18: Now you see it… (π Norma Roberts / BMMRO)Gina & Calf Norma Roberts 1 copy

…and now you don’t…Gina & Calf Norma Roberts 2 copy

THE COMPETITION

ATTENTION TEAM MANATEES!!! Due to a consistent influx of sighting information and photos, we would like to add Gina’s calf to our catalogue. It would be nice for it to have a NAME!! We cannot monitor these manatees without your help and it is only fitting that  YOU name the manatee. The deadline for name suggestions is November 29th, 2015 and the winning name will be revealed on November 30th, 2015. The member with the winning name suggestion will receive an official manatee club T-Shirt!!

RULES

1. The name must be submitted on the Club Page Bahamas Manatee Club as an individual post – DO NOT comment your suggestion.
2. The name must be unisex – we do not know the sex of the calf yet.
3. A meaning or description must be submitted along with the name.
4. Please do not submit any derogatory or explicit “names.”
5. If you are submitting on behalf of a child who is not on Facebook, please add their name to the post as well.

Spread the word! Tell your friends and families to join the club and help us with a name!! The name will be selected on it’s meaning or description as it relates to marine mammals OR The Bahamas. The amount of “likes” per post will also go into consideration during the selection process.

Regretful Note: I made the stupid mistake of being amongst the very first to post my suggestion, meaning that after a day or two I’d get no likes at all, as more people got involved and my offering sank slowly. But there’ve been plenty of much better ones since, so probably just as well!

Bahamas Marine Mammal Research Organization

Bahamas Manatee Club

For more information about West Indian manatees, you can visit the MANATEE PAGE. There are several links there to specific manatee stories.

Finally, here is a great manatee map that Felice has recently made, showing which of the increasing number of manatees is where at the moment. Just think, only 4 or 5 were known about four years back. Now look!

12241226_298174587019969_1571890190333376929_n

Credits: primary founts of Bahamas manatee knowledge Felice & BMMRO; Photos BMMRO, Junea Pinder, Lynne Hirzel, Jeffrey Louis, Norma Roberts

mantsw~1