LEPORINUS OBTUSIDENS PDF

ABSTRACT. The piava (Leporinus obtusidens) is a migratory freshwater fish. There is relatively little information on the hematological and morphological. Leporinus obtusidens (Valenciennes, ) (Download Help) Leporinus obtusidens TSN Genus, Leporinus Agassiz in Spix and Agassiz, In this study, teleostean fish Leporinus obtusidens (piava) were exposed to different concentrations of Roundup, a glyphosate (acid equivalent) herbicide: 0.

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The back, as usual in this habitat, is darker than the belly. However, it prefers grain and seeds wheat and maizeand it often gathers in large banks near ports, where cargo ships drop grains into the water. Exposure obtusdens this herbicide produced a decrease in all hematological parameters tested.

Megaleporinus obtusidens is an omnivore: In young individuals there are also eight broad vertical streaks, joined in the back and coming down to the middle line.

Its basic colour is a light greenish-gray, with three rounded dark spots in mid-flank, which may not be visible in some specimens.

Curimatus obtusidens Valenciennes, Leporinus silvestrii Boulenger, Leporinus aguapeiensis Amaral Campos, Leporinus obtusidens Valenciennes, Acetylcholinesterase AChE activity was verified in brain and muscle tissues.

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It prefers warm waters and reproduces in spring and summer, starting at 2 years of age.

Collaborators Pictures Stamps, Coins Misc. Levels of ammonia in both tissues increase in fish at all glyphosate concentrations. In addition, fish exposed to all glyphosate concentrations showed a significant increase in hepatic glycogen and obtudidens, but a significant reduction in muscle glycogen and glucose.

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Metabolic parameters in the liver and muscle lactate, glycogen, glucose, protein, and ammoniaas well as some hematological parameters, were determined. Short description Morphology Morphometrics Dorsal soft rays total: This page was last edited on 22 Marchat Cordiviola de Yuan, E.

Results indicated that AChE activity significantly decreased in the brain of fish exposed to all glyphosate concentrations tested, but in the muscle this parameter was not altered. Differs from a similar species Leporinus piavussu by having 41 to 43, rarely 44 perforated scales in the lateral line vs.

Fishing Worldrecords characins >> Leporinus obtusidens

Phylogenetic diversity index Ref. Views Read Edit View history. Oobtusidens on 12 July Freshwater; benthopelagic; potamodromous Ref. Can be further distinguished from Leporinus muyscorum by having six or seven scale rows between lateral line and dorsal-fin origin vs. Megaleporinus obtusidens Valenciennes Estimates of some properties based on models Phylogenetic diversity index Ref.

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Leporinus obtusidens : fisheries, aquaculture, gamefish

In this study, teleostean fish Leporinus obtusidens piava were exposed to different concentrations of Roundup, a glyphosate acid equivalent herbicide: Differs from Leporinus amblyrhynchusL. Megaleporinus obtusidens has an elongated wide body, with a comparatively small head and a blunt mouth; its teeth are reminiscent of the incisors of Lagomorphawhence the name of the genus leporinus” hare -like”, as in Leporidae.

Leporimus species is also known by the technical synonym Curimatus obtusidens. Retrieved from ” https: Pignalberi de Hassan The length and weight of the individuals are extremely variable according to the area, probably influenced keporinus different feeding habits, opportunities and exploitation, as well as local sub-specific variants.