Discus Heckel

The Discus Heckel ( Symphysodon discus ) is a fresh water fish originating in the Fleuve the Amazon. There are several subspecies very difficult to distinguish. Moreover all the varieties of the Symphysodon resemble each other much, physically and comportementalement and can produce a large variety of hybrid which are appreciated in aquariophilie. The conditions and precautions of breeding are thus common to the kind.

Subspecies

Symphysodon discus discus (Heckel 1840)

Only one pair of nasal opening

Small scales cnétoides 45 to 53 on arranged median and side one, starting from the posterior end of the head until the base of the rays of the caudal fin. Small lips thick and fleshy. One easily recognizes it with the three strongly marked vertical stripes which cross its body. The first that of the eye, the fifth in the middle of the body and the caudal ninth that of the stalk. One meets it only in black water, his zones of distributions are well defined: the basin of the Rio negro, the top Rio trombetas and part of the grandé Lago Cleaned. Its dress is very particular, are vermiculated them more or less broad cross the body right through to form a regular drawing. According to the area, its color varies, in the basin of Rio Negro, the bottom of the body is red brick crossed by are vermiculated blue blades. In high Trombetas, its color draws with the green bottle, certain subjects appear even almost black. In the area of Cleaned, its color is yellow orange, the fishermen Caboclos have allots to him the name of discus gold (Spanish: will acara disco music ouro ).

Symphysodon discus willischwartzi

It was described by Burgess in 1981 and it published its conclusions in stores Tropical fish hobbyist. The only difference which it notes compared to the Symphysodon discus discus is the number of scales on the median part of the body which passes from 45-53 at the S.D. discus to 53-59 at the S.D. willischwartzi . It is only the Symphysodon discus with living in the south of the Amazon, since one meets it only in the Rio Abacaxis, affluent with water black of the Rio Madeira.

External bonds

discusnature.societeg.com: Site of reference for and by the amateurs of discus (Fr)

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