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February 2019

Dive Site: Nemo’s Reef

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DIVE Site: Nemo’s Reef

DIVE PROFILE

MAX DEPTH: 15-20 meters
AVERAGE DEPTH: 5-8 meters
BOTTOM TIME: 45 – 60 minutes

About the Dive Site: Nemo’s Reef

Nemo’s reef. Where do we begin to describe this extremely familiar yet totally mysterious place! A shore entry site, it opens into a swimming pool-like setting with shallow water, white sand and a baby reef (1-3 meters). It then splits into two long fringing reefs on either side of the shallow sandy pool. The Andaman and Nicobar Islands harbours over 2000 sq.km of coral reefs and a majority of this area fringes along islands. Thick forests, mangroves and rocky shores make access difficult in most places and this is where Nemo’s reef is popular. Easy entry and exits, not requiring long surface swims. It is also fairly sheltered from winds through most of the year.

On an average day at Nemo’s, we typically get to see mixed schools of reef fish, everything from surgeonfish, rabbitfish, parrotfish, butterflyfish, bannerfish and snappers, sweetlips queenfish and chubs, to hunting trevallies, needlefish and barracudas. Five species of anemonefish can be seen here, easily, giving this reef its name. Cephalopods like the octopus, squid and cuttlefish are residents at nemo’s with regularly used dens and rubble patches. The banded sea kraits and the more estuarine file snake come through regularly, along with the beautiful Kuhl’s sting ray. Molluscs, crinoids, crustaceans, sponges polychaetes and several other invertebrate groups thrive here as well.

High tide is a great time to dive because the water is usually clear and we get to see the sloping topography of the reef, however, the marine life tends to concentrate into dramatic densities when the tide recedes, the water level comes down and visibility drops.

The topography of the dive site makes it ideal for us to begin dive courses and take people on their first ever SCUBA diving experience, but by no means is Nemo’s reef just a training space. The shallow profile of this reef allows us to stay until we hit the reserve on our tanks without having to worry about no-decompression limits. So this gives us on average an estimated 60-80 minute underwater for fun divers who are keen on exploring the rocks and sands for crazy macro life- day and night!

While we love all of our dive sites dearly, it is here that most of us come back nodding in awe-inspired disbelief, thinking “did we really just see that animal in the Andamans? And in Nemo’s reef?” Starting with flying gurnads, ornate ghost pipefish, robust ghost pipefish, devil scorpionfish, angler flounders, honeycomb moray eels, seahorses, bizarre nudibranchs, sea moths, skeleton shrimps and as of a week ago- painted frogfish! While a bunch of these are potentially only briefly passing through, we are certain that most are resident and have missed our eye from having not looked carefully enough or for long enough! Shore dives at Nemo’s reef are very easy to organise and we are never limited by space. So if you are keen on shore diving, our divemasters would be thrilled to take you. It gives us a chance to continue exploring this crazy reef!

Pictures clicked at Dive Site: Nemo’s Reef, Andamans
by Dev 

Dining etiquette for an Octopus | The Incredibles Showcase

Posted by | #OceanLove, Blogs, PADI underwater naturalist, The Incredible Showcase, Underwater Naturaliast Course, Underwater Photography | No Comments

How do octopus eat their prey

How do octopus eat their prey

Dining etiquette for an octopus: Dig in with all hands!

Nemo’s reef is a fantastic place to spend hours watching these animals just,be. We follow them quietly, as they go about doing their daily things around the shallows of Nemo’s. That alone is one lifetime of diving right there! People often make the mistake of getting way too close to an octopus. Sure, it is sitting there in its crevice, changing colour in response to divers and that is rather cool! But what would be even cooler and perhaps much less disruptive for the octopus, is if we were to curb the excitement and give the animal enough space to get back to its life. This can in fact be plenty times more extraordinary a sight to behold than a tense octopus hiding in a hole! Here we see a young octopus that frequents the ‘first barrel sponge rocks’ area at Nemo’s reef. All of us have met this octopus over the past few weeks and she/he is now very comfortable around divers. When we first saw it, a diver was ten inches away from it with a camera, as it hid inside a crevice, perhaps thinking to itself – Hurry up mister, I’m starving and you’re in my way. As soon as said mister left the scene, the octopus was on the move! We suppose one can identity an octopus with a ravenous appetite by how thoroughly it inspects each rock, tickling every crevice simultaneously with every arm. Note how it expands each arm, turning its entire body in to a large web-like umbrella to trap any molluscs, crustaceans or tiny fish that get flushed out during its invasion.Once prey is in hand, an octopus might crush it, pry it open, or drill a hole in it, drain in some toxins or simply slurp it up, depending on the nature of its catch. Owing to its highly efficient, powerful and thorough hunting technique, an octopus on the hunt is almost always surrounded by a mob of other fish-a mix of allies and competitors possibly. Here we see a few juvenile groupers, wrasses, goatfishes and a tiny cloud of exasperated damsels. Isn’t this simply fascinating?

Video credit: Chetana Purushotham