| Phylum Chordata
> Subphylum Vertebrata > fishes |
Whitings
Family
Sillaginidae
updated
Nov 08
if you
learn only 3 things about them ...
They are important food fish in some places.
They may hide in the sand if disturbed.
There are several species although they look similar at
first glace. |
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Where seen? These silvery topedo-shaped fishes are often
encountered on many of our sandy shores especially near reefs.
What are whitings? Whitings belong to the Family Sillaginidae.
According to FishBase:
the family has 3 genera and 31 species, found mainly in the Indo-west
Pacific.
Features: To about 30cm, those seen about 6-8cm. Long,
slender silvery fishes with a torpedo-shaped body, large eyes and
small mouth on a conical, sharp snout. Often without obvious markings,
the various species of Sillago appear very similar in the field.
The Silver sillago (Sillago sihama) is commonly seen
in coastal areas and even recorded in freshwater. It can grow to about
30cm. Body silvery often without any obvious markings. May have dusky
tips on the dorsal fins and tail fins. No dark blotch at the base
of the pectoral fins. Tail fins may have a whitish margin. These fishes
form schools. Adults bury themselves in sand when disturbed. The young
fish live out in the open sea, feeding on plankton. In Singapore,
this fish is also called 'pasir', which means 'sand' in Malay.
The Trumpeter sillago (Sillago maculata) is found in
deeper coastal waters but also in river mouths and mangrove creeks.
It can grow about 30cm. There is a black spot at the base of the pectoral
fin, the back and sides of the body with dark blotches. The upper
and lower blotches are often joined, the upper blotches generally
larger. They are found in deeper coastal waters but also in river
mouths and mangrove creeks. Juveniles are found in shallow waters,
moving into deeper waters as they mature.
The Large-scale sillago (Sillago macrolepsis) can grow
to about 20cm. Body yellowish, darker above, without any markings,
dorsal fin dusky with a narrow blackish margin. Juveniles have a series
of small brown spots along each side at the base of the dorsal fins.
The Spotted sillago (Sillago burrus) is found in silty
and muddy areas. It can grow to about 36cm. Body silvery with irregular
dark blotches on the sides that may appear to be oblique bars. The
upper blotches are small, an indistinct black spot at the base of
the pectoral fin. It is found in silty and muddy areas.
What do they eat? They eat small
animals found on the sea bottom such as worms, small shrimps and prawns.
Human Uses: In some places, they
are highly valued as seafood and some species are important in fish
farming. They are sold fresh or frozen.
Status and threats: Our whitings
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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Kusu Island, Apr 05

Sentosa, Jun 07

Changi, Oct 07

Pulau Hantu, May 05
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Whitings
on Singapore shores

Beting Bronok, Aug 05
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Family
Sillaginidae recorded for Singapore
from
Wee Y.C. and Peter K. L. Ng. 1994. A First Look at Biodiversity
in Singapore.
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Sillago
burrus (Spotted sillago)
Sillago maculata (Trumpeter sillago)
Sillago sihama (Silver sillago) |
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