FORAYS WITH MORAYS (6): WELL SPOTTED…


Spotted Moray Eel (©Melinda Riger / Grand Bahama Scuba)

FORAYS WITH MORAYS (6): WELL SPOTTED…

I was always taught ‘keep your mind open and your mouth closed’. Bad advice. Such bad advice. The worst. So many reasons to be exactly the opposite in these troubled times…

Spotted Moray Eel (©Melinda Riger / Grand Bahama Scuba)

Spotted Moray eels Gymnothorax moringa, however, seem to have their own rules to live by. They appear to be open-minded and fairly sensible creatures around the reef. They tend to keep themselves to themselves, hanging out unassumingly in holes and crevices in the coral.

Spotted Moray Eel (©Melinda Riger / Grand Bahama Scuba)

They do tend to stick their necks out a bit, but unless provoked (see below) they seem to be reasonably amiable (except maybe to the small fish and crustaceans that make up their diet).

Spotted Moray Eel (©Melinda Riger / Grand Bahama Scuba)

They do keep their mouths open a lot, though. And as you can see, they have sharp-looking teeth that you mightn’t want too near to you. I say that because their bite can be dangerous and should be avoided. To start with, the teeth are slightly backward-facing, so that when they bite there is a ‘pull-back’ effect when you react (not unlike a barb on a fish hook). They are not aggressive as such, but they know how to deal with unwanted interference in their lives…

Spotted Moray Eel (©Melinda Riger / Grand Bahama Scuba)

Apart from the unpleasant bite and associated pain that moray eels can inflict in defence, they are also poisonous (as opposed to venomous). Specifically they can release toxins into the wound; and in some species their skin contains toxins as well**. Serious infection may result.

Spotted Moray Eel (©Melinda Riger / Grand Bahama Scuba)

CAN YOU GIVE THE POISONOUS / VENOMOUS DISTINCTION AGAIN

I could, but ace natural history cartoonist Rosemary Mosco makes a better job than I can:Toxic: poison v venom cartoon (Rosemary Mosco)

**Before I leave the topic, maybe I ought to mention one bit of research I have just come across at Dove Med, from which I take away the message that you definitely don’t want to annoy a moray eel or get bitten by one. Ever. They are fine and interesting denizens of the reef, to be admired from a respectful distance…

Spotted Moray Eel (©Melinda Riger / Grand Bahama Scuba)

Photo credits: all amazing photos courtesy of Melinda Riger, Grand Bahama Scuba; cute yet educative cartoon by Rosemary Mosco. Check out her website HERE – and birders, she v good on your specialist subject…

Spotted Moray Eel (©Melinda Riger / Grand Bahama Scuba)

BAHAMAS SEA TURTLES: IN THEIR ELEMENT


Green Turtle, Bahamas (Melinda Riger / Grand Bahama Scuba)

Green Turtle

BAHAMAS SEA TURTLES: IN THEIR ELEMENT

Of all the sea creatures in the limpid waters of the Bahamas, turtles are rightly among the most loved. These days, what with habitat degradation below the waves and the destruction of nesting sites on land, turtles have a hard time simply fighting for survival. And that’s before they have ingested the plastic garbage that mankind pours into their living quarters, by now probably beyond effective remedial action forever. So here are some gorgeous turtles to admire, while stocks last…

Hawksbill Turtles enjoying life around a still-healthy reefHawksbill Turtle, Bahamas (Melinda Riger / Grand Bahama Scuba) Hawksbill Turtle, Bahamas (Melinda Riger / Grand Bahama Scuba)

A hawksbill snacking on a spongeHawksbill Turtle, Bahamas (Melinda Riger / Grand Bahama Scuba)

Interaction with other underwater species: gray angelfish and a rock beautyHawksbill Turtle, Bahamas (Melinda Riger / Grand Bahama Scuba) Hawksbill Turtle, Bahamas (Melinda Riger / Grand Bahama Scuba)

If you are concerned about the plight of turtles and indeed other denizens of the thickening plastic soup we still call ‘ocean’, you could investigate the work some of the organisations that tackle the problem in the Bahamas and beyond. To name but a few, our own FRIENDS OF THE ENVIRONMENT; the BAHAMAS NATIONAL TRUST; the Bahamas Reef Environmental, Educational Foundation BREEF; the CAPE ELEUTHERA FOUNDATION; and the SEA TURTLE CONSERVANCY

Photo credits: all great photos by Melinda Riger / Grand Bahama Scuba

‘WELL SPOTTED’ (2): ATLANTIC SPOTTED DOLPHINS IN ABACO


Atlantic Spotted Dolphins in Abaco Waters (BMMRO)

‘WELL SPOTTED’ (2): ATLANTIC SPOTTED DOLPHINS IN ABACO

No sooner have I posted about PANTROPICAL SPOTTED DOLPHINS sighted during the current BMMRO whale research program, than the other Bahamas spotted dolphin species shows up as well. These are the more numerous Atlantic Spotteds Stenella frontalis, more confined in range (as the names suggest) than the Pantropicals. 

Atlantic Spotted Dolphins in Abaco Waters (BMMRO)

The BMMRO caption reads “Atlantic spotted dolphins today! Small social group playing with sargassum – they swam past what looked like a plastic mattress cover – one dolphin whacked it with its tail as it swam by…”

Atlantic Spotted Dolphins in Abaco Waters (BMMRO)

Just because it can…Atlantic Spotted Dolphin leaping in Abaco Waters (BMMRO)

RUBBISHING RUBBISH: A RANT

Behold a large plastic bag, made by humans and dumped by humans into a place that is not theirs to use as a trash repository. It will take some 500 years to break down completely. But when people say that they don’t really mean it will have harmlessly disappeared over that period and become salt water. Far rom it. It will just break down into smaller and smaller pieces, to bite-sized bits for turtle, fish and seabirds who will idiotically mistake them for food (duh!), then to micro-plastic that will become part of the evolving plastic soup that will be ingested by tiny sea creatures and coat the reefs in polyethylene gunk. [End of rant. Ed.]

Atlantic Spotted Dolphins in Abaco Waters - marine trash (BMMRO)

Behold an Atlantic Spotted Dolphin giving the bag a passing whack with its tail. It won’t do anything to help with marine pollution, but is shows a robust disdain for a piece of man-made rubbish that has made it into the creature’s home environment.

Atlantic Spotted Dolphins in Abaco Waters - marine trash (BMMRO)

Below is a short GoPro shoot of a pair of ASDs, that I took from the BMMRO research boat last year. Marvel at the grace and elegance of these beautiful animals as they swim just below the surface (wonder, too, at the incompetence of the cameraperson who, to be fair, was leaning over the side of the RHIB with the camera on a stick…)

All photos BMMRO; video from the Rolling Harbour achives, intemperate rant all my own

‘WELL SPOTTED’: PANTROPICAL SPOTTED DOLPHINS IN ABACO


Pan-tropical Spotted Dolphins, Abaco Bahamas (BMMRO)

‘WELL SPOTTED’: PANTROPICAL SPOTTED DOLPHINS IN ABACO

Two species of spotted dolphin are found in Bahamas waters. The most common is the ATLANTIC SPOTTED DOLPHIN Stenella frontalis, a species confined to the Atlantic. Less commonly seen – though with a global range – are Pantropical Spotted Dolphins Stenella attenuata

Pan-tropical Spotted Dolphins, Abaco Bahamas (BMMRO)

The BMMRO research boat is out whale-spotting right now, and the team is finding a good variety of cetacean species, from dolphins right up to SPERM WHALE mother and calves. A couple of days ago, the pantropicals surfaced and these great shots of them were taken.

Pan-tropical Spotted Dolphins, Abaco Bahamas (BMMRO)

The two spotted dolphin species are very similar to the untrained eye. Identification is further complicated by the fact that both species start life without spots and go through stages ranging from no spots at all to completely spotted. These stages are sometimes referred to as ‘two-tone, speckled, mottled, and fused’. The pantropicals are relatively small, reaching lengths up to 7 feet and weighing c250 pounds at adulthood. Their beaks are longer and more slender than the familiar but larger bottlenose dolphin. The beak has a white tip, a useful identifier.

Atlantic Spotted and Pantropical Spotted range maps for comparison

The pantropicals favour shallower water by day, and at night they move to deeper water where they can dive down for food such as squid. Although they are IUCN listed as ‘Least Concern’ and their world-wide numbers are estimated to be abundant, they face the usual man-related threats to the species throughout their range, especially in the Pacific region. As we see time after time, complacency can turn to concern in a very short time.

Pan-tropical Spotted Dolphins, Abaco Bahamas (BMMRO)

THREATS TO THE SPECIES

  • Entanglement in fishing gear – captured as bycatch in the course of commercial fishing
  • Entangled in discarded fishing gear
  • Illegal feeding and harassment – this is a problem in particular locations eg Hawaii
  • Overexposure to and interaction with eager tourists in inshore areas
  • Hunting – these dolphins are prolifically hunted for food in several parts of the world
  • Hunting – they are caught ‘accidentally’ in large numbers in nets set for tuna
  • Persecution in eastern tropical Pacific fisheries, according to WDC
  • Pollution, plastic ingestion etc – basically, mankind’s negligence over 60 years or so
  • General habitat degradation, disturbance and marine noise pollution – mankind again

Pan-tropical Spotted Dolphins, Abaco Bahamas (BMMRO)Pan-tropical Spotted Dolphins, Abaco Bahamas (BMMRO)

Credits: BMMRO for all photos; research credits NOAA; WDC

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

MARINE POSTER COMPETITION FOR ABACO KIDS


BMMRO children's poster competition winners

MARINE POSTER COMPETITION FOR ABACO KIDS

BMMRO recently collaborated with Dolphin Encounters Marine Education Poster Contest in a competition for schoolchildren on Abaco. There were 3 age groups, 3 -5, 6 – 8, and 9 – 12. The young participants received the excellent BMMRO marine educational poster as a prize, though I suspect they were motivated not so much by a prize but by the fun possibilities of the challenges set for them. 

BMMRO children's poster competition winners

And how well they met them. I am featuring a selection of the prizewinners as posted by BMMRO on FB and Insta. Bearing in mind the ages of the artists, the results are astounding. As someone for whom the task of drawing a stickman presents insurmountable difficulties of perspective, proportion, form and accuracy, I am in awe of the inventiveness of these young minds and their artistic skills. They’ve done a fantastic job in highlighting the critical conservation issues facing all marine creatures large and small, with an awareness that I hope will help stay with them into adulthood.

BMMRO children's poster competition winnersBMMRO children's poster competition winnersBMMRO children's poster competition winnersBMMRO children's poster competition winnersBMMRO children's poster competition winnersBMMRO children's poster competition winnersBMMRO children's poster competition winnersBMMRO children's poster competition winnersBMMRO children's poster competition winnersBMMRO children's poster competition winners

Do I have a favourite, I asked myself. Actually, no – I’d just be proud to have any of these on my wall. And I bet the teachers and the families involved all feel the same.

HUGE CONGRATULATIONS TO ALL THE WORTHY WINNERS

BMMRO children's poster competition winnersBMMRO children's poster competition winners

 

SPERM WHALES GATHERING IN ABACO WATERS


Sperm Whales, Abaco Bahamas (BMMRO / Keith Salvesen)

SPERM WHALES GATHERING IN ABACO WATERS

During the past week, the BMMRO research boat has been tracking sperm whales off the south coast of Abaco. These huge creatures are the largest marine mammals found in Bahamian waters, and the area between Rocky Point around the south coast to Hole-in-the Wall is a great place to find them. 

Sperm Whales, Abaco Bahamas (BMMRO / Keith Salvesen)Sperm Whales, Abaco Bahamas (BMMRO / Keith Salvesen)

One reason they are found in this particular area is the existence of the Great Bahama Canyon, one of the deepest submarine canyons in the world. The depth of the canyon ensures that the waters are nutrient-rich, with food being drawn up from the depths towards the surface. In season it’s the perfect place for female sperm whales and their calves.

Sperm Whales, Abaco Bahamas (BMMRO / Keith Salvesen)Sperm Whales, Abaco Bahamas (BMMRO / Keith Salvesen)

The BMMRO research trip encountered more than a dozen sperm whales, mostly females with their calves. And the amazing thing is that the sightings are often made within sight of land. In these photos, the are two landmarks visible. One is the huge Disney vessel parked at Gorda Cay aka Castaway Cay (header image); the other is HOLE-IN-THE-WALL LIGHTHOUSE (above)

Sperm Whales, Abaco Bahamas (BMMRO / Keith Salvesen) Sperm Whales, Abaco Bahamas (BMMRO / Keith Salvesen)

Credits: All photos BMMRO 2018, with thanks to Diane & Charlotte as ever

Sperm Whales, Abaco Bahamas (BMMRO / Keith Salvesen)