Hemisorubim platyrhynchos: A More Manageable Shovelnose Catfish. Author: Seth Gibson. GIBS Photographer: Aaron Norman. Monster cats can reach several . Braz J Biol. Nov;64(4) Epub Mar 2. Age and growth of the porthole shovelnose catfish (Hemisorubim platyrhynchos) in the Pantanal. Hemisorubim platyrhynchos is a medium- to large-sized pimelodid catfish distributed along several river basins of the Neotropical Region.

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Age and growth of the porthole shovelnose catfish (Hemisorubim platyrhynchos) in the Pantanal.

In the southern Pantanal, landing data, including professional and recreational fishing results forrecorded 7. Neotropical Ichthyology 9 1: The last procedure hdmisorubim a life expectancy estimate longevity of The measurements of jurupoca specimens were recorded between July and October Many hard structures have been used to determine the age of pimelodidae.

bemisorubim Mitotic chromosome preparations were obtained according to the technique described by Foresti et al. Additional information about the study area is given in Penha and Penha et al. The relatively low amount of heterochromatin in chromosomes of Hemisorubim platyrhynchos andin other species of the Pimelodidae catfishes suggests that this may be a characteristic of this family.

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International Edition, pp.

National Center for Biotechnology InformationU. Of these genera, Hemisorubim is most closely related to Pseudoplatystoma.

Porthole shovelnose catfish

The meat of H. Several hypotheses have been advanced to explain this phenomenon, the main ones being: Moreover, a positive relation was found between lengths of fin and finspine.

From Wikipedia, the free encyclopedia. The growth rate reduction and consequent growth ring formation have generally been associated with temperature, environmental retraction effects during the dry season, reproduction Welcome,and migration Brett, The meat of this species is highly valued.

Arrows indicate the NOR- bearing chromosomes.

The purpose of this study was to determine the age, adjust the von Bertalanffy growth curve, and estimate the longevity of individuals of the species. This fact suggests the presence of the Rosa-Lee phenomenon Lee,apud Ricker, Hemisorubim BleekerSpecies: World Wide Web eletronic publication: The estimated growth parameters indicate that the species presents a relatively slow growth rate.

The accumulated amount of fish landed from to was 50 tons Catella, However, even in such cases the growth rings were clearly visible. Suggestion of a Cytotaxonomical Classification.

Human uses

All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License. The family Pimelodidae represents one of the most specious catfish groups, however relationships among species of this group still remain as unanswered questions; however, it seems self-evident that they share certain characteristics NelsonFerraris The porthole shovelnose catfish or spotted shovelnose catfishHemisorubim platyrhynchosis the only species in the genus Hemisorubim of the catfish order Siluriformes family Pimelodidae.


Ichthyological Exploration Freshwaters 16 4: Retrieved from ” https: Journal du Conseil Siluriformesand catalogue of Siluriform primary types.

Published online Apr Idade e crescimento do jurupoca Hemisorubim platyrhynchos no Pantanal. The genus Hemisorubim is a monospecific member hemixorubim the Pimelodidae family.

In some cases, rapid growth zones were more translucent. Please review our privacy policy. Details about data analyses can be found in Penha and Penha et al.

Geneticand Molecular Research 4 4: Analyses of the residual variances and coefficients of determination indicated that the relationship between the Rz and FL of the spines could be described consistently by several models r 2 of models: