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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Sounds Ciguatera Speed Swim. These results indicate that AChE activity as well as metabolic and hematological parameters may be good early indicators of herbicide obfusidens in L. Freshwater; benthopelagic; potamodromous Ref. High vulnerability 62 of Can be diagnosed from most congeners, except Leporinus amblyrhynchusL. Acetylcholinesterase AChE activity was verified in brain and muscle tissues.

Can be further distinguished from Leporinus muyscorum by having six or seven scale rows between lateral line and dorsal-fin origin vs. Levels of ammonia in both tissues increase in fish at all glyphosate concentrations.

Estimates of some properties based on models Phylogenetic diversity index Ref. Lactate and protein of fish exposed to all glyphosate concentrations presented a significant decrease in the liver, but did not change significantly in the muscle. 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.

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Curimatus obtusidens Valenciennes, Leporinus silvestrii Boulenger, Leporinus aguapeiensis Amaral Campos, Leporinus obtusidens Valenciennes, It may be found in the main courses and streams, as well as in lakes and lagoons; it often shelters among stones and aquatic vegetation. Views Read Edit View history. Pignalberi de Hassan In other projects Wikimedia Commons Wikispecies.

Collaborators Pictures Stamps, Coins Misc. The length and weight of the individuals are extremely variable according to the area, probably influenced by different feeding habits, opportunities and exploitation, as well as local sub-specific variants. There is also a variant called piava and another obtusidems tres puntos “three dots”.

Megaleporinus obtusidens – Wikipedia

Megaleporinus obtusidens is an omnivore: This page was last edited on 22 Marchat Dorsal soft rays total: Exposure to this herbicide produced a decrease in all hematological parameters tested. Articles with ‘species’ microformats Articles with Spanish-language external links. In addition, fish exposed to all glyphosate concentrations showed a significant increase in hepatic glycogen and glucose, but a significant reduction in muscle glycogen and glucose.

Main reference Upload your references References Coordinator: 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. The common name boga is applied to many other species of fish, usually unrelated to this one.

Downloaded on 12 July This species is also known by the technical synonym Curimatus obtusidens. They also occur in ponds.

Metabolic parameters in the liver and muscle lactate, glycogen, glucose, protein, and ammoniaas well as some hematological parameters, were determined. The larger fish probably belong to other species of Leporinus either L.

The back, as usual in this habitat, is darker than the belly. From Wikipedia, the free encyclopedia. Megaleporinus obtusidens Valenciennes Cordiviola de Yuan, E. Entered leporinua Torres, Armi G. Retrieved from ” https: Summary page Point data Common names Obtusjdens.

IUCN Red List of Threatened Species

Differs from a similar species Leporinus piavussu by having 41 to 43, rarely 44 perforated scales in the lateral line vs. Medium, minimum population doubling time 1. In young individuals there are also eight broad vertical streaks, joined in the back and coming down to the middle line. Short description Morphology Morphometrics Dorsal soft rays total: Distinct pairs breed on densely grown weedy places Ref. 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.

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