Abstract:
The present study attempts to shed light on some biological aspects and
characteristics of Piaractus brachypomus, including some biometrics,
phenotypic and feeding pattern that characterizes this species. Besides, the
study touches upon the body shape and the Otolith. These fish species have
recently been seen frozen in the Iraqi local market. The standard length of fish
specimens in this study reach 26.55cm it exceeded the specimens of Pacu fish
collected from other studies from other countries, As well the specimens
weight was 632gm it exceeded other studies mentioned in this manuscript. As
the irregularity in the distribution of teeth rows, especially in the lower jaw
was clear in our specimens. The average weight of some skull bones of
Piaractus brachypomus specimens is 2.25g, which gives evidence of the
heaviness of the bones of this species