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Soles
Family Soleidae
updated
Jul 09
if you
learn only 3 things about them ...
May be quite large, although small ones are also seen.
Eyes on the right side of the body. Tail fin is separated
from the dorsal and anal fins.
Found
beneath the sand. Watch your step! |
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Where
seen? Some of these flatfishes really do look like the
sole of a shoe! Others have pretty patterns. They are often seen on
our Northern shores, sometimes also on our Southern shores. Usually
in sandy areas near seagrass meadows.
What are soles? Soles are flatfishes
that belong to the Family Soleidae. According to FishBase:
the family has 22 genera and 89 species. They are found mainly from
Europe to Australia and Japan. The Latin 'solea' means 'sandal'.
Features: 10-30cm. Eyes small and on the right side. The
head is small. In some species, the tail fin separate from the dorsal
and anal fins. In others, such as Commerson's
sole (Synaptura commersoniana), the tail fins are joined
to the dorsal and anal fins. The fins lack spines.
Snout sometimes hook-shaped. Scales relatively large and sometimes
modified into skin flaps fringed with sensory filaments. Colours on
the eyed side highly variable depending on the surroundings. May be
uniformly brown to patterned with scattered dark spots or blotches.
Some soles such as the Peacock sole (Pardachirus
pavoninus) have toxin glands that produce a distasteful substance.
The Moses sole (Pardachirus mamoratus) found in the Red Sea
produces an astringent, frothy, soap-like poison, called pardaxin,
that was found to repel sharks. However, the toxin proved difficult
to package and store and could not be used to protect humans.
Sometimes confused with other
flatfishes.
Here's more on how
to tell apart the flatfish families commonly seen.
What do they eat? Soles hunt small animals that live on
the bottom of the sea including other fishes. Some species have tentacles
around the mouth on the blind side. Teeth only on the blind side of
the mouth, on both jaws.
Human uses: Some species are economically
very important and are harvested for the food trade.
Status and threats: Our solefishes
are not listed among the threatened animals of Singapore. But like
other creatures of the intertidal zone, they are affected by human
activities such as reclamation and pollution. Over-fishing can also
have an impact on local populations. |
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Family
Soleidae recorded for Singapore
from
Wee Y.C. and Peter K. L. Ng. 1994. A First Look at Biodiversity
in Singapore.
*Lim, Kelvin K. P. & Jeffrey K. Y. Low, 1998. A Guide to the Common
Marine Fishes of Singapore.
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