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.
|Published (Last):||28 March 2010|
|PDF File Size:||4.61 Mb|
|ePub File Size:||11.67 Mb|
|Price:||Free* [*Free Regsitration Required]|
Dorsal soft rays total: This species is also known by the technical synonym Curimatus obtusidens.
Sounds Ciguatera Speed Swim. Short description Morphology Morphometrics Dorsal soft rays total: Phylogenetic diversity index Ref. High vulnerability 62 of Acetylcholinesterase AChE activity was verified in brain and muscle tissues. In young individuals there are also eight broad vertical streaks, joined in the back and coming down to the middle line. Levels of ammonia in both tissues increase in fish at all glyphosate concentrations.
Pignalberi de Hassan Sign our Guest Book. 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. Differs from a similar species Leporinus piavussu by having 41 to 43, rarely 44 perforated scales in the lateral line vs. It prefers warm waters and reproduces in spring and summer, starting at 2 years of age. Distinct pairs breed on densely grown weedy places Ref.
Medium, minimum population doubling time 1. 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 – Wikipedia
The larger fish probably belong to other species of Leporinus either L. There is also a variant called piava and another called tres puntos “three dots”. Views Read Edit View history. The common name boga is applied to many other species of fish, usually unrelated to this one. Megaleporinus obtusidens Conservation status.
Entered by Torres, Armi G. Its basic colour is a light greenish-gray, with three rounded dark spots in mid-flank, which may not be visible in some specimens.
Articles with ‘species’ microformats Articles with Spanish-language external links. Summary page Point data Common names Photos. In addition, fish exposed to all glyphosate concentrations showed a significant obtusidene in hepatic glycogen and glucose, but a significant reduction in muscle glycogen and glucose.
Megaleporinus obtusidens is an omnivore: Estimates of some properties based on models Phylogenetic diversity index Ref.
In this study, teleostean fish Leporinus obtusidens piava were exposed to different concentrations of Roundup, a glyphosate acid equivalent herbicide: 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.
Main reference Upload your references References Coordinator: 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. Megaleporinus obtusidens Valenciennes Curimatus obtusidens Valenciennes, Leporinus silvestrii Boulenger, Leporinus aguapeiensis Amaral Campos, Leporinus obtusidens Valenciennes, Exposure to this herbicide produced a decrease in all hematological parameters leporibus.
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. Can be diagnosed from most congeners, except Leporinus amblyrhynchusLeporinux. 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. 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.
Retrieved from ” https: Downloaded on 12 July This page was last edited obtuaidens 22 Marchat Metabolic parameters in the liver and muscle lactate, glycogen, glucose, protein, and ammoniaas well as some hematological parameters, were determined.
In other projects Wikimedia Commons Wikispecies. From Wikipedia, the free encyclopedia. Collaborators Pictures Stamps, Coins Misc. Can be further distinguished from Leporinus muyscorum by having six or seven scale rows between lateral line and dorsal-fin origin vs.