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Electrifying Tales

Electrifying Tales

In this installment of tales from the Tropical seas, Umeed Mistry introduces us to eels, an inhabitant of the Indian Ocean, often spotted by divers not far offshore from some of our favorite beach side destinations.

Electrifying Tales

Peppered morays (Sidereapicta) generally inhabit shallow reef flats. This specimen was photographed in the Kadmat Island lagoon in Lakshadweep, peeping out of a discarded cement sack.

Divers in India’s waters often come across eels on reefs and in shallow inter tidal areas. These long,slender creatures are generally observed poking their heads out of crevices in rocks or coral close to the sea floor. Their elongated shape and undulated movement when observed swimming out in the open, is reminiscent of snakes. This appearance, coupled with the fact that many of them have very obvious sharp teeth, generally leads to a feeling of wariness when in the presence of eels. But the truth is that most of these animals are not aggressive by nature and are quite harmless if unprovoked. In fact, in many places where divers feed marine life, habituated eels will leave the shelter of the reef floor and swim out when they sense their arrival. And so, short of a feeding mishap or blindly sticking ones hand into holes and crevices, the chances of being bitten by an eel are pretty slim.

Electrifying Tales

Snake eels, like this Marbled snake eel (Callechelysmarmorata), are not often encountered by divers in these waters. When found,they are usually buried almost entirely in the sand, with only their heads protruding out. I have observed a few individuals off both the Lakshadweep and the Andaman Islands.

Eels are elongated fish, belonging to the order Anguilliformes. They do not have pelvic fins and many species also lace pectoral fins. The dorsal fin is fused with the anal and caudal fins to form a long, single fin running along almost the entire length of the animal. Their scale-less bodies are coated with a transparent, protective mucous layer.

Eels range from five centimeters to four meters in length and most of them are predators in their habitat. Some species,like members of the genus Gymnothorax have long, sharp teeth for hunting fish and octopus. In addition to the teeth along the upper and lower jaw line, these species also have two teeth in the middle of the palate. Other species, like those in the genus Echidna, have blunt teeth used for crushing crabs and other crustaceans.

Many eels are nocturnal and are therefore rarely seen. During the day, they are reclusive and rest in burrows and crevices along the seabed. Snorkelers and divers generally encounter eels in shallow lagoons and on reef slopes – their bodies hidden in burrows or holes and heads poking out. Some species can be observed out in the open at night, hunting for food along the reef.

Snake eels and garden eels also use burrows on the sea floor, but tend to stick to sand and mud flats instead of reefs. Snake eels have pointed snouts and bony tails which allow them to burrow forward or backward beneath the sediment. They are less common than moray eels and in almost two decades of diving in the Andamans and Lakshadweep, I have only encountered a few individuals. They are shy animals that should be approached very slowly. Often, only the tops of their heads show above the sand with their eyes, nostrils and mouth exposed.

Many eels open and close their mouths when resting. This movement, often perceived as a threat, is simply to push water over their gills for respiration. For divers observing these animals, an eel that continues to open and close its mouth in as low, regular manner, is one that is okay with and unthreatened by the presence of the diver. These are the ones to try and inch a little closer to for a photograph. But it is worthwhile to note that although unaggressive by nature, a threatened eel can give a careless or over-friendly diver a nasty bite.

Electrifying Tales

These juvenile Indian mud morays (Gymnothorax tile) were photographed in the debris scattered beneath the jetty on the southwestern side of the Kadmat lagoon in Lakshadweep.

Electrifying Tales

Black-spotted morays (Gymnothoraxfavagineus) are white-yellow in color with irregular black spots. The sharp teeth in the middle of the palate, common to individuals in the Gymnothorax and Enchelycore genera, are clearly visible here.

This article first appeared in the March 2015 issue of Saevus magazine.

 

About the Author /

Umeed Mistry began diving in the Maldives in 1996 – an experience that has significantly shaped his life and work. Now a PADI Staff Instructor, over the last 16 years he has introduced people with a range of personal, academic and scientific interests to the reefs in the Indian Ocean. In 2005 he began photographing underwater and tries to spend as much of his time shooting in the field. His work has appeared in a number of national and international publications – including Saevus, Asian Diver, UW360, Scuba Diver AustralAsia, Outlook Traveler and NatGeo Traveler. He is the recipient of several national and international photography awards, starting with the all India Better Photography Photographer of the Year 2007. With a keen interest in marine and freshwater ecosystems, and a multi- disciplinary approach to creating awareness of these ecosystems, Umeed also facilitates art residencies and education programs with his partners at Earth CoLab (www.earthcolab.com). All of Umeed’s varied work – as a dive instructor, underwater photographer and cameraman, writer and educator – is driven by the desire to spark in others the same love he has for marine and freshwater spaces. His photography work, both terrestrial and marine, can be seen on Instagram @umeed.mistry

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