Clownfish, Philippines. Photo by Stephane Rochon.

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Melhores vídeos

Cuttlefishes and octopuses. Part 16 of my documentary, "Mucky Secrets", about the fascinating marine creatures of the Lembeh Strait in Indonesia. Watch the full 90-minute documentary at http://www.youtube.com/watch?v=nJMZ6reOB0E

In this video I look at cuttlefishes (Sepiida) and octopuses (Octopoda); types of cephalopod (Cephalopoda) found in the Lembeh Strait.

The broadclub cuttlefish (Sepia latimanus) is the second largest species of cuttlefish, and the most common on coral reefs. It can adopt an infinite number of textures, colours and poses to camouflage itself, communicate and to hypnotize prey.

As the name suggests, the crinoid cuttlefish (Sepia sp.) tends to hang around feather stars. We find one hiding amongst the branches of a decaying staghorn coral. This is an undescribed species known only from Indonesia, and recognised by the dark spots at the front of its lower arms.

The dwarf cuttlefish, or stumpy-spined cuttlefish (Sepia bandensis) is a tiny species that is usually only seen at night. Rather than swimming, it usually uses its lower arms to walk on and explore the seabed. It is often found in association with echinoderms such as sea urchins.

Another species that walks on its arms is one of the real stars of Lembeh, the flamboyant cuttlefish (Metasepia pfefferi). When disturbed it abandons its camouflage and the skin adopts spectacular shades of purple and yellow, with waves of white radiating down the mantle. The colour changes are achieved by adjusting millions of pigmented cells in the skin called chromatophores. This is an example of aposematic coloration whereby a creature warns potential predators of its toxicity. Scientists have recently discovered that the flamboyant cuttlefish's muscle tissue contains a unique and highly potent toxin, proving that this display is no bluff.

We see an adult flamboyant cuttlefish using its special feeding tentacles to snatch prey such as small shrimps and gobes, and a tiny juvenile raising its median tentacles, a common threat display amongst cuttlefishes.

Cuttlefishes' intelligence and unique powers compensate for their lack of a protective shell. They have the highest brain-to-body-mass ratio of all invertebrates, and researchers have shown them to possess a good memory and a high capacity for learning.

Octopuses are closely related to cuttlefishes and have similar characteristics and intelligence.

At TK we encounter an undescribed octopus, a near relative of the mimic octopus and wonderpus, retreating to its burrow with a captured crab. The octopus usually injects the crab with a paralysing saliva before using it's parrot-like beak at the centre its arms to excavate the meat from the crab.

Finally on a night dive at Aer Perang we encounter a starry night octopus, Callistoctopus luteus, twisting and turning around the reef as it tries to escape my attention.

There are English captions showing either the full narration or the common and scientific names of the marine life, along with the dive site names.

The full Mucky Secrets nature documentary features a huge diversity of weird and wonderful marine animals including frogfish, nudibranchs, scorpionfish, crabs, shrimps, moray eels, seahorses, octopus, cuttlefish etc..

Thanks to TekMerc (www.soundcloud.com/tekmerc) for the music track, "Untitled Ambient Tune" and to Ojini Project (www.soundcloud.com/ojiniproject) for the track, "Melody of the Lost Ark". These tracks are licensed under a Creative Commons Attribution 3.0 Unported license.

Thanks to the staff and keen-eyed divemasters of Two Fish Divers (http://www.twofishdivers.com), for accommodation, diving services and critter-spotting.

The video was shot by Nick Hope with a Sony HVR-Z1P HDV camera in a Light & Motion Bluefin HD housing with Light & Motion Elite lights and a flat port. A Century +3.5 diopter was used for the most of the macro footage.

I have more scuba diving videos and underwater footage on my website at:
http://www.bubblevision.com

I post updates about my videos here:
http://www.facebook.com/bubblevision
http://google.com/+bubblevision
http://www.twitter.com/nicholashope
http://bubblevision.tumblr.com

Full list of marine life and dive sites featured in this video:

00:00 Broadclub Cuttlefish (juvenile), Sepia latimanus, Critter Hunt
00:08 Broadclub Cuttlefish, Sepia latimanus, Makawide
00:19 Crinoid Cuttlefish, Sepia sp., Tanjung Kusu-Kusu
00:41 Dwarf Cuttlefish, Sepia bandensis, Nudi Falls
01:15 Flamboyant Cuttlefish, Metasepia pfefferi, Retak Larry
02:35 Flamboyant Cuttlefish (juvenile), Metasepia pfefferi, Makawide
02:49 Undescribed Octopus, TK 1
03:37 Starry Night Octopus, Callistoctopus luteus, Aer Perang 06:13

Air Prang
Indonesia

Twelve Orcas feeding and mating a mile off Marineland. 03:23

Marineland
United States of America

East Pacific Red Octopus, Octopus rubescens have been nesting at various sites along The Redondo Canyon. We have been fortunate to witness the developing embryos and their guardian mothers caring for the eggs until hatching. 02:37

Redondo Beach Artificial Reef
United States of America

Fishes feeding. Part 19 of my DVD, "Reef Life of the Andaman", available at http://www.bubblevision.com/marine-life-DVD.htm

In this video we look at ways that fish hunt and feed, mostly by collaborating in schools. At Richelieu Rock we first see a rhizostome jellyfish, Versuriga anadyomene, under attack from a scrawled filefish at Richelieu Rock in Thailand and then see a school of streaked spinefoots (Java rabbitfish, Siganus javus) preying on a jellyfish as rainbow runners, Elagatis bipinnulata, dart by.

We then encounter streaked spinefoots joining Singapore parrotfish, Scarus prasiognathus, feeding on algae on the coral reef at Staghorn Reef on Racha Yai near Phuket, and a school of blue-barred parrotfish, Scarus ghobban, feeding at Koh Bon.

At East of Eden in the Similan Islands, we find different types of fish collaborating in their hunt for prey. Goldsaddle goatfish (Parupeneus cyclostomus), bluefin trevally (Caranx melampygus) and smalltooth emperors (Lethrinus microdon) make a spectacular sight as they gang up in their hunt for small fishes.

Fringelip mullet, Crenimugil crenilabis, are occasionally spotted in a school at Racha Noi, feeding by filtering organic matter from the sand.

At Koh Tachai, north of the Similan Islands, we see a variety of tropical fish that would do any aquarium proud, all gathered around a titan triggerfish, Balistoides viridescens, as it feeds.

We then meet the blackspotted puffer, Arothron nigropunctatus, standing by at another feeding frenzy at Anemone Reef, then feeding alone at Richelieu Rock.

Finally we encounter a yellow trumpetfish, Aulostomus chinensis, firstly "riding" above a porcupinefish, and then hiding within a school of yellowfin goatfish so that it can more easily approach its prey.

The full narration is available as English, German or Spanish subtitles by turning on the closed captions (CC). There are also closed captions available showing scientific and common names of the marine life in English, German or Dutch, along with dive site names.

"Reef Life of the Andaman" is being serialised weekly on YouTube. Please subscribe to my channel to receive notifications of new episodes as I release them. The series features descriptions of 213 different marine species including more than 100 tropical fish, along with sharks, rays, moray eels, crabs, lobsters, shrimps, sea slugs, cuttlefish, squid, octopus, turtles, sea snakes, starfish, sea cucumbers, corals, worms etc..

I have more scuba diving videos and underwater footage on my website at:
http://www.bubblevision.com

I post updates about my videos, and interesting underwater videos from other filmmakers here:
http://www.facebook.com/bubblevision
http://www.twitter.com/nicholashope

The video was shot by Nick Hope with a Sony VX2000 DV camera in a Gates housing. It was edited in Sony Vegas Pro then deinterlaced with QTGMC and upscaled to 720p HD in AviSynth.

Thanks to Santana Diving of Phuket (http://www.santanaphuket.com), to Elfi and Uli Erfort for help with the German translation, and to Frank Nelissen for the Dutch subtitles.

Full list of marine life and dive sites featured in this video:

00:00 Rhizostome Jellyfish, Versuriga anadyomene, Richelieu Rock
00:06 Australian Spotted Jellyfish, Phyllorhiza punctata, Staghorn Reef, Racha Yai
00:13 Streaked Spinefoot, Siganus javus, Richelieu Rock
00:29 Singapore Parrotfish, Scarus prasiognathus, Staghorn Reef, Racha Yai
00:45 Blue-barred Parrotfish, Scarus ghobban, Koh Bon
00:59 Goldsaddle Goatfish, Parupeneus cyclostomus, East of Eden
01:07 Bluefin Trevally, Caranx melampygus, East of Eden
01:27 Smalltooth Emperor, Lethrinus microdon, East of Eden
01:31 Smalltooth Emperor, Lethrinus microdon, Shark Point
01:49 Fringelip Mullet, Crenimugil crenilabis, South Reef, Racha Noi
02:07 Titan Triggerfish, Balistoides viridescens, East of Eden
02:26 Koh Tachai
02:51 Anemone Reef
03:11 Blackspotted Puffer, Arothron nigropunctatus, Anemone Reef
03:27 Blackspotted Puffer, Arothron nigropunctatus, Richelieu Rock
03:46 Trumpetfish, Aulostomus chinensis, Lucy's Reef, Racha Yai
04:04 Trumpetfish, Aulostomus chinensis, Tuna Wreck
04:23 Banded Sea Krait, Laticauda colubrina, Shark Cave 04:55

East of Eden
Thailand


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  • Dez 20 
    [ Informação ] Wannadive è avaiable in italiano! Hi, Wannadive è avaiable in italiano! Today we are very happy to announce that Wannadive interface is available in Italian. We would like to thanks the following translators for their help and great Christmas gift! * Dave Noise (from Wannasurf) * Riccardo Ghetti (from Wannadive) * Lorenzo Facchin (from Wannadive) All Italian divers can now switch to Italian language by using the language selector at the top of Wannadive pages. Enjoy! We wish you a merry Christmas. WD Team
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