Leporinus frederici (Bloch, ) Leporinus friderici friderici (Bloch, ) Salmo friderici Bloch, BioLib link: Leporinus friderici · FishBase. Dorsal soft rays (total): 12; Anal soft rays: Scales in lateral line 35 + circumpeduncular 16; profile over orbits flat; teeth in the upper jaw 4 + 4, the cutting. Leporinus friderici (Bloch, ) (Characiformes, Anostomidae) is a freshwater fish commonly called “piava” or “piau-três-pintas” widely.

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Global Ecol Biogeogr Not available FishBase mirror site: No common pattern was observed in the friiderici of one sex between the environments of either reservoir.

Size-associated sexual dimorphism was observed in L. Phylogenetic signal in module composition and species connectivity in compartmentalized host-parasite networks. Vagility is an important host trait that influences the structure and composition of parasite communities from different locations. Academic Press, London, p.

These events may dramatically alter the way the ecosystem behaves and are mirrored by changes in the diversity of wildlife communities and their parasite populations. Ital J Zool Food would influence the metabolism through hormonal activity, causing changes in the production of individuals of one sex.

A comparison of three tributaries of the Jurumirim Reservoir in southeastern Brazil. Entered by Binohlan, Crispina B. Estimators of species richness provided roughly similar results with the observed values exhibiting a satisfactory level of sampling effort Figure 4. The fish fauna in the fish passage at the Ourinhos Dam, Paranapanema River. Specimens were sexed and the state of gonadal maturation was estimated by macroscopic inspection of the gonads Vazzoler, Thus the post-closure period may possibly be marked by greater fecundity of the species.


In the studied area, the effects of the Jurumirim Dam have been well documented for phytoplankton Henry et al. The breeding season established for L.

Category:Leporinus friderici – Wikimedia Commons

In general, the breeding season lasted from October through April, although cyclic changes in the duration and intensity of this season fridderici evident. The formation of Itaipu Reservoir had a greater effect on the reproduction of L.

This site relies heavily on the help of hundreds of people without whose valuable contributions it simply wouldn’t exist. In both environments, the reproductive investment of the females was much higher than that of the males Figs.

Neotropical Ichthyology, 11 1: Studies have also found that the rivers are resilient and their fish assemblages react quickly after dam removal Hitt et al. Distribution and abundance of stream fishes in relation to barriers: Services on Demand Journal.

Mechanisms of species coexistence: Both populations showed differences in the sex ratios in the shorter and longer length classes, females being longer than males Fig.


Threespot Leporinus

Anostomidae from the Brazilian Amazon, and redescription of Leporinus striatus Kner elporinus The food is crushed by four strong teeth on each half-jaw. Freshwater; benthopelagic; potamodromous Ref.

Most hosts were parasitized by one species Figure 2. Oliver and Boydp. Dams usually affect the ecological and evolutionary processes of resident biota by modifying and replacing the function and diversity of river habitats Poff et al.

Statistica data analysis software systemversion 7. The formation of parasite fauna and parasitic diseases of fish in water reservoirs. Journal of Fish Biology, 83 5: Fridwrici length Lstotal weight Wtand gonadal weight Wg were measured for each specimen caught. Rio Grande do Norte. Short description Morphology Morphometrics Dorsal soft rays total: Lrporinus de Livros, p. However, the dominance of young fish was observed during the entire period of the study including the river phase, and was not shown to be friferici effect of reservoir formation.

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