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 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. High vulnerability 62 of Its basic colour obusidens a light greenish-gray, with three rounded dark spots in mid-flank, which may not be visible in some specimens.

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. Megaleporinus obtusidens is an omnivore: Medium, minimum population doubling time 1. It may be found in the main courses and streams, as well as in lakes and lagoons; it lepornius shelters among stones and aquatic vegetation.

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It prefers warm waters and reproduces in spring and summer, starting at 2 years of age. There is also a variant called piava and another called tres puntos “three dots”.

Short description Morphology Morphometrics Dorsal soft rays total: 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. In other projects Wikimedia Commons Wikispecies. Acetylcholinesterase AChE activity was verified in brain and muscle tissues. They also occur in ponds.

In this study, teleostean fish Leporinus obtusidens piava were exposed to different concentrations of Roundup, a glyphosate acid equivalent herbicide: 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.

Leporinus obtusidens : fisheries, aquaculture, gamefish

Can be further distinguished from Leporinus muyscorum by having six or seven scale rows between lateral line and dorsal-fin origin vs. Phylogenetic diversity index Ref. These results indicate that AChE activity as well as metabolic and hematological parameters may be good early indicators of herbicide contamination in L.

Megaleporinus obtusidens Valenciennes Pignalberi de Hassan Sign our Guest Book. Cordiviola de Yuan, E.

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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. In young individuals there are also eight broad vertical streaks, joined in the back and coming down to the middle line.

Curimatus obtusidens Valenciennes, Leporinus silvestrii Boulenger, Leporinus aguapeiensis Amaral Campos, Leporinus obtusidens Valenciennes, Main reference Upload your references References Coordinator: Dorsal soft rays total: Summary page Point data Common names Photos.

Downloaded on 12 July Can be diagnosed from most congeners, except Leporinus amblyrhynchusL. Collaborators Pictures Stamps, Coins Misc. This species is also known by the technical synonym Curimatus obtusidens.

IUCN Red List of Threatened Species

The back, as usual in this habitat, is darker than the belly. Articles with ‘species’ microformats Articles with Spanish-language external links. Views Read Edit View history. Sounds Ciguatera Speed Swim. Freshwater; benthopelagic; potamodromous Ref. Estimates of some properties based on models Phylogenetic diversity index Ref.