Symbiosis, including anemonefish & clownfish. Part 18 of my DVD, "Reef Life of the Andaman", available at http://www.bubblevision.com/marine-life-DVD.htm

In this video we see how fishes form symbiotic relationships with other marine life in order to defend themselves. First we find sea urchin cardinalfish, Siphamia versicolor, protecting themselves amongst the spines of sea urchins and crown-of-thorns starfish at Koh Bon, near the Similan Islands, and in the Mergui Archipelago. This is known as a "commensal" relationship, whereby one partner in the relationship benefits while the other receives neither benefit nor harm.

Anemonefish form symbiotic relationships with sea anemones. This is a mutually-beneficial symbiotic relationship. While the fish are protected, their faeces provide food for the anemone and they help keep it free of parasites. We see skunk clownfish, Clark's anemonefish, saddle anemonefish and the well-known ocellaris clownfish (Amphiprion ocellaris) finding their home in various species of sea anemone such as the magnificent anemone, Heteractis magnifica.

Porcelain anemone crabs, Neopetrolisthes maculatus, are found in sea anemones in the Similan Islands, while a magnificent shrimp, Ancylomenes magnificus, shelters under the stinging tentacles of a tube anemone at Burma's Shark Cave, itself covered in phoronid worms.

Finally we see how small and juvenile fish "hitchhike" in jellyfish to protect themself from predators.

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.

Thanks to Erik Verkoyen for the music track, "Pattern Errors".

"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..

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