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Clown
anemonefish
Amphiprion
ocellaris
Family Pomacentridae
updated
Aug 11
if you
learn only 3 things about it ...
The fish needs its host anemone. Do not disturb it or
the anemone.
One anemone may be home to many anemonefishes.
These
fishes are threatened by over-collection for the aquarium
trade. Don't keep Nemo in your home, he belongs in the
ocean. |
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Where
seen? This
delightful fish is commonly seen in large sea anemones on some of
our Southern Islands. At low tide, it is usually well hidden under
or inside the sea anemone. It is more active when the sea anemone
is submerged. Look for it with the outgoing tide, when the water is
clearer (than the incoming tide).
Features: 2-9cm. Red to reddish-brown
with three broad white bars (the middle bar widening at the middle
of the side of the body towards the head) and black bands on the edges
of the fins including the top of the dorsal fin.
On our intertidal, the fish is often seen in the Giant
carpet anemone (Stichodactyla gigantea) and sometimes in
the Magnificent
anemone (Heteractis magnifica) . Elsewhere, it is recorded
to also live in Merten's
carpet anemone (Stichodactyla mertensii).
False Clown? Our clown anemonefish
(Amphiprion ocellaris) is sometimes called the False clown
anemonefish, to distinguish it from another closely related fish called
the Orange anemonefish (Amphiprion percula) which has black
bands on the white body bars (see SeaLife
Base fact sheet). The natural distribution of these two species
of anemonefishes do NOT overlap.
Human uses: Unfortunately, these
fishes are taken in large numbers from the wild for the aquarium trade.
The harvest may involve the use of cyanide or blasting, which damage
the habitat and kill many other creatures. Like other fish and creatures
harvested from the wild, most die before they can reach the retailers.
Without professional care, most die soon after they are sold. Often
of starvation as owners are unable to provide the small creatures
and plants that these fishes need to survive. In artificial conditions,
many succumb to diseases and poor health. Those that do survive are
unlikely to breed.
There have been some success in breeding anemonefish for the aquarium
trade. Although captive bred anemonefish are hardier, they are more
expensive. Harvesting from the wild will probably continue so long
as there are unscrupulous traders and aquarists.
Status and threats: The Clown
anemonefish is listed as 'Vulnerable' on the Red List of threatened
animals of Singapore. Like other creatures of the intertidal zone,
they are affected by human activities such as reclamation and pollution.
Poaching by hobbyists and overfishing can also have an impact on local
populations. According to the Singapore Red Data Book, "habitat
protection and strict policing against illegal collection are required"
to conserve our anemonefishes.
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Kusu Island,
Jun 04

At
low tide, sheltering in a pool
away from their anemone.
Kusu Island, May 05

Tiny
baby anemonefish.
Sentosa, Jun 07

In
Magnificent
sea anemone.
Pulau Semakau, Aug 11
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Clown
anemonefishes on Singapore shores

Sisters Island, Aug 09
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Pulau Hantu, Aug 04

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Pulau Hantu, Nov 03

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Kusu Island, Jul 04

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Links
References
- Davison,
G.W. H. and P. K. L. Ng and Ho Hua Chew, 2008. The Singapore
Red Data Book: Threatened plants and animals of Singapore.
Nature Society (Singapore). 285 pp.
- Lieske, Ewald
and Robert Myers. 2001. Coral
Reef Fishes of the World
Periplus Editions. 400pp.
- Bond, Carl
E., 1996. Biology
of Fishes
2nd ed. Thomson Learning Inc., 750pp.
- Lim, S.,
P. Ng, L. Tan, & W. Y. Chin, 1994. Rhythm of the Sea: The Life
and Times of Labrador Beach. Division of Biology, School of
Science, Nanyang Technological University & Department of Zoology,
the National University of Singapore. 160 pp.
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