Phylum Chordata
> Subphylum Vertebrate > fishes |
Barracudas
Family Sphyraenidae
updated
Oct 2020
Where seen? Very
young ones are stick-like and sometimes in seagrass meadows near reefs.
Elsewhere, juvenile barracudas are found in mangroves or river estuaries.
What are barracudas? Barracudas belong to the Family Sphyraenidae.
According to FishBase:
the family has 1 genera and 18 species. They are found in the Atlantic,
Indian and Pacific Oceans. Tropical and subtropical. Distribution:
Atlantic, Indian, and Pacific Oceans.
Features: Enormous adults are found in deeper water. Those seen on the intertidal
are juveniles usually 5-8cm long. Body short and cylindrical
with regular pale bars on a greenish or olive background. Large eyes.
Both jaws seem to be about the same length, the upper jaw only a little
shorter than the lower jaw. It has a forked tail and the dorsal fins
are far apart and well separated.
Sometimes mistaken for halfbeaks.
Halfbeaks have an upper jaw that is much shorter than the lower jaw. Here's more on how
to tell apart stick-like fishes commonly seen on our shores. |
Tanah Merah, Aug 09 |
St John's Island, Nov 15
Photo shared by Marcus Ng on facebook.
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Pulau Semakau, Aug 11
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Upper and lower jaws about the same length.
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Surface dwellers: It is well adapted
to living at the water surface. Usually darker on the top while the
sides and underside are silvery. Thus its darker blue or green back
blends in with the water surface when above-water predators look down
on it. While at the same time, underwater predators looking up at
it can't really see it well either as its silvery body blends with
the sunlit waters. Its unfish-like body shape also means it is often
dismissed as a floating stick. Some small ones are brown and twig-like.
What do they eat? These juveniles grow up to be voracious
predators more than 1m long. The adults hunt other fishes and adults
may even attack humans with their strong jaws which are full of sharp
fang-like teeth.
Barracuda babies:The adults may
be found near coastal reefs and they spawn in schools.
Human uses: Barracudas are prized
as food and game fishes, but large specimens may be toxic (ciguatoxic). |
Baby
barracudas on Singapore shores |
Other sightings on Singapore shores |
Kusu Island, May 10
Photo shared by Marcus Ng on flickr. |
Big Sisters Island, Oct 11
Photo shared by Marcus Ng on flickr.
|
Terumbu Raya, Jul 11
Photo shared by Lok Kok Sheng on his
blog. |
Pulau Semakau, Apr 08
Photo shared by Marcus Ng on his
flickr. |
Family
Sphyraenidae recorded for Singapore
from
Wee Y.C. and Peter K. L. Ng. 1994. A First Look at Biodiversity
in Singapore.
in red are those listed among the threatened
animals of Singapore from Ng, P. K. L. & Y. C. Wee, 1994.
The Singapore Red Data Book: Threatened Plants and Animals of Singapore.
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Sphyraena
barracuda (Great barracuda)
Sphyraena jello
Sphyraena obtusata |
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Links
References
- Zeehan Jaafar. Great barracuda at Sisters’ Islands Marine Park. 31 July 2019. Singapore Biodiversity Records 2019: 91-92 ISSN 2345-7597. National University of Singapore.
- Wee Y.C.
and Peter K. L. Ng. 1994. A First Look at Biodiversity in Singapore.
National Council on the Environment. 163pp.
- Allen, Gerry,
2000. Marine
Fishes of South-East Asia: A Field Guide for Anglers and Divers.
Periplus Editions. 292 pp.
- Kuiter, Rudie
H. 2002. Guide
to Sea Fishes of Australia: A Comprehensive Reference for Divers
& Fishermen
New Holland Publishers. 434pp.
- Lieske,
Ewald and Robert Myers. 2001. Coral
Reef Fishes of the World
Periplus Editions. 400pp.
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