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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Distribution and abundance of stream fishes in relation to barriers: Main reference Upload your references Vriderici Coordinator: Greater diversity is apparent in the range of oral morphology, however, and members exhibit a wide range of adaptations in dentition and jaw structure.

In those catches there was no evidence of predominance of young fish, which does not support the first supposition.

Human uses

Following this reasoning, what would happen to fish parasite assemblages after dam removal? Food would influence the metabolism through hormonal activity, causing changes in the production of individuals of one sex. Ital J Zool Editora Guanabara, Rio de Janeiro, p.

Previous studies have identified a significant reduction in potential intermediate host communities zooplankton and benthic communitiesand thereafter a proportional decrease in fish density and diversity in the Jurumirim Reservoir Henry et al.

Eight taxa were shared among the host populations, six Monogenea Dactylogyridae gen. It is admitted that more or less preferential catch of specimens of one sex would reflect different growth rates Munro,which may also be a consideration in the case of L. Parasitology meets ecology on its own terms: Braz Arch Biol Technol Urbanization as a major cause of biotic homogenization. Anostomidae from the Brazilian Amazon, and redescription of Leporinus striatus Kner Ecology of the parasites of freshwater fishes.

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You must be logged in to post a comment. Neotropical Ichthyology, 12 fridericj It tested whether the environment formed by damming the river promoted different local reproductive modes, and whether temporal changes in reproductive strategy are patterns for the species, or are dependent on the impacted environment.

Category:Leporinus friderici – Wikimedia Commons

Nematodes of freshwater fishes of the Neotropical region. South American Monogenoidea parasites of fishes, amphibians and reptiles.

Despite these assumptions, the restoration of natural flows, removal of dams, and elimination of pollution can slow or even reverse the homogenization process RahelRahel Verh Internat Verein Limnol EDUEMp. Based on an assumption that the TR host population see Figure 1 is further away from the other rivers, a Mantel test with randomization runs was performed using PC-ORD 5. Estimators of species richness provided roughly similar results with the observed values exhibiting a satisfactory level leporinuus sampling effort Figure 4.

However, how can dams affect the parasitic fauna of these fish? Dam interventions leads to the decline of many species that are replaced by a much smaller number of expanding species that thrive in environments altered by humans Olden and RooneyRahel The majority of species are moderately-elongate and somewhat rounded in shape although there are some exceptions, e.

Neotropical Ichthyology, 11 1: The breeding sites selected by the populations of L. Estimates of some properties based on models Phylogenetic diversity index Ref. This page was last edited on 23 Marchat Dams and the fish fauna of the Neotropical Region: Data analysis The sex ratio per standard length class, environment, and season was established.


Threespot Leporinus

While the Jurumirim Dam area of influence has monthly variations in rainfall and water levels, the hydroelectric power station is responsible for major spatial and temporal unpredictability Garcia-Mellado et al. The formation of parasite fauna and parasitic diseases of fish in water reservoirs. On defining and quantifying biotic homogenization. Two new species of Leporinus Agassiz, Characiformes: The breeding season extended from September through April, although annual variation was seen in both reservoirs.

Leporinus friderici – Threespot Leporinus (Salmo friderici) — Seriously Fish

Anthropogenic effects of reservoir construction on the parasite fauna of aquatic wildlife. To date, most efforts to quantify faunal homogenization in freshwater ecosystems has focused on fish assemblages. Statistical analyses were performed at community level i. The second suggestion cannot be totally discarded, since fish species have specific tactics for spawning and development of the young lepoeinus information about these behaviors is sparse, not only for L.

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In the present study we recognized that the Jurumirim Reservoir performs as a mediator, facilitating the spread of both host populations and disease. Global Ecol Biogeogr