Hey, you, get off...
|Copyright: Thomas Sautter (mjdundee)
|Date Taken: 2006-04|
|Camera: Olympus mju 720 SW|
|Photo Version: Original Version|
|Date Submitted: 2006-05-09 3:51|
|[Note Guidelines] Photographer's Note|
|... off my reef. A little clown fish ready to attack the camera in order to protect his habitat.|
More from Wikipedia:
The Clownfish, or Anemonefish, are the subfamily Amphiprioninae of the family Pomacentridae. There are currently 27 species, of which one is in the genus Premnas and the rest are in the subfamily's type genus Amphiprion. The other pomacentrids are called damselfish.
Clownfish are native to wide ranges of the warm waters of the Pacific; some species ranges overlap others. Clownfish are not found in the Atlantic. Clownfish live in a mutual relationship with sea anemones, or in some case settle in some varieties of soft corals, or large polyp stony corals. Once an anemone or coral has been adopted, the clownfish will defend it vigorously. However, clownfish in an aquarium environment can exist very well without an anemone (this may be advisable as most anemones are extremely difficult to keep alive even for experienced aquarists). The anemone is required in nature because reef life is dangerous for small, brightly coloured fish with very poor swimming abilities; in an aquarium lacking predators it is not needed. For this reason, clownfish never stray far from their host. In an aquarium, where they don't have to forage for food, it is very common for clownfish to remain within 6–12 inches of their host for an entire lifetime.
Clownfish and Damselfish are the only species of fish which can avoid the stings of an anemone, which can be quite potent. The exact mechanism by which this is accomplished is the subject of debate, and there are several theories which may all be partly responsible. The details of these theories are complex, but they fall into two major categories. One theory is that their slime coating is based on sugar rather than proteins so anemones fail to recognize the fish as food and do not fire their nematocysts, or sting organelles. A similar theory is that the mucous coating mimicks the anemone's own coating, a theory that is bolstered by the fact that it takes several days for a clownfish to adapt to a new species of anemone. There is no acclimation period when a clownfish is moved to another anemone of the same species. Not all anemones make suitable hosts—many sting and eat clownfish. Also, particular species of clownfish will only use particular species of host anemones in nature. In captivity, certain clownfish species will adapt to certain other anemone species, but not many. Another likely possibility is that their unique movements, which are unlike any other fish, let the anemone know that they are not food. This theory is bolstered by the fact that juvenile Clownfish, which have no coating, will immediately seek refuge in any compatible anemone and will not be stung. Juvenile clownfish will not survive for long without the protection of an anemone, and few actually find one before being eaten.
eruyanik, pilonm has marked this note useful
Only registered TrekNature members may rate photo notes.
|You must be logged in to start a discussion.|
Great shot! Vivid colourful photo, there is lots of interesting subjects in the frame also. I love the centered subject. Great job, I like it a lot! Thank you.
- [2006-05-09 4:13]
Wonderful capture of this underwater scene, Thomas.
The details are amazingly sharp for an underwater shot. The colors are fabulous, and the composition is excellent. TFS. : )
- [2006-05-09 21:45]
Félicitations pour cette belle composition originale et bien coloré.
Merci pour l'envoie.
- [2006-05-12 15:07]
Astonishing shot of that ecosystem! It is like you took this shot on another planet! Colors, sharpness, pov, composition cannot be better!