MORPHOLOGY FISH SUMATRA




Sumatran fish is a fish is a basic but often surface in search of food. Sumatra is the main meal of fish and zoo-benthos detritus, while supplementary food in the form of tiny worms and food Crustace low level. These fish are actively moving in surface waters for grabbing food. Sumatran fish reach sexual maturity at a length of 2 to 3 cm (0.8 to 1.2 inches) or approximately 6 -7 weeks old. Female fish are larger and have darker dorsal fin, while the lighter-colored male fish. Spawn in the rainy season the river downstream and the eggs hatch, the larvae live in the area until the size of ± 1 cm then straddling into the lakes and creeks. Fecundity ranged between 300-500 eggs and the highest fecundity as 1,000 eggs (Muthmainnah 2009). Sumatran fish eggs are adhesive with a diameter of 1.18 ± 0.05 mm (Wikipedia 2009). According Ganggadata (2007), Sumatran fish eggs will hatch ± 36 hours after fertilization at a temperature of 27 ° C with an average diameter of 1.3875 mm.

According Lesmana and Philanthropy (2001), Sumatran fish (Puntius tetrazona) life in groups and can be put in place well-lit as long as the shade. In an aquarium is usually in groups of 5 or more. If less than 5 tail, the fish will be aggressive, and when only two tails, one will be chasing the other (Muthmainnah 2009).

2.2 Habitat and Distribution
Sumatran fish naturally spread in the Malay Peninsula (including in the region of Thailand), Sumatra and Kalimantan. In addition, there are also reports findings from other regions in Southeast Asia which are difficult to be confirmed, if the fish is native or removable fish have adapted.

These fish are often found in fast-flowing rivers are shallow, clear or cloudy. Sumatran fish like a pH between 6.0-8.0, water hardness between 5-19 DGH, and water temperatures range between 20-26 ° C. Sumatran fish are also found in the swamp, which indicates that these fish have a pretty high tolerance to changes in water quality. The average length of the fish life is about 6 years old Sumatran (Word Nazrasul Judge, 2010)
Sumatra is one of the fish ornamental fish tropical waters. Native fish habitat in Sumatra is the Malay Islands, Sumatra, and Borneo (Wikipedia, 2008). Sumatra fish live in fresh waters such as rivers, lakes, and swamps. This fish likes the fast-flowing waters calm. These fish can grow to a length of 7 cm. Sumatra fish living in waters that have a range of degree of acidity (pH) 6-8, with a hardness level of 5-19 dH (optimum 10), and temperatures ranging from 25-29 ° C (Wikipedia, 2008). In Wikipedia (2008), Sumatra fish begin to mature gonads after fish reach a length of 2-3 cm or after the fish aged 6 to 7 months.

Axelrod et al. (1983) suggested that the spawning process can be speeded up if the Sumatran fish spawning media has a lower hardness than the media maintenance. Sumatra spawning takes place in the morning at the water plants. Eggs that are spawned adhesive or stick to the substrate. Sumatra fish are able to produce 300 eggs each spawn point. Each time the parent spawning Sumatra, was predicted to produce as many eggs as 300 - 1000 points. Sumatra fish egg diameter 1.18 + 0.05 (Wikipedia, 2008).



2.3 Related species
Taxonomic status of this species has not been well and have a long debate about it. Pieter Bleeker in 1855, the Germans fish expert who works in the Dutch East Indies when it was first decrypt this type with the name Capoëta tetrazona. But in 1857, Bleeker reuse-specific name (specific epithet) is equal to name the other types, which are related but not so similar, ie, with Barbus tetrazona (this fish is now known as Puntius rhomboocellatus).

Meanwhile, to add to the complexity, in 1860 Bleeker-specific renaming Sumatran fish into Systomus (Capoëta) sumatranus. Only in the late 1930s this mistake corrected and the name Barbus tetrazona returned to Sumatran fish. Another similar type is Puntius anchisporus, the staining pattern is very similar to the Sumatran fish. The difference, P. anchisporus have the perfect line-side and trunk tail surrounded by 14 scales (Wikipedia 2008).
 
 
 

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