Results 191 to 200 of about 4,670 (210)
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Journal of Fish Biology, 2011
Cytogenetic markers were used to compare the karyotypes of an isolated population of Hoplias malabaricus with others previously described. The results revealed peculiar characteristics that indicate a new independent evolutionary unit within the H. malabaricus complex.
Guilherme Targino Valente +1 more
exaly +4 more sources
Cytogenetic markers were used to compare the karyotypes of an isolated population of Hoplias malabaricus with others previously described. The results revealed peculiar characteristics that indicate a new independent evolutionary unit within the H. malabaricus complex.
Guilherme Targino Valente +1 more
exaly +4 more sources
Respiration Physiology, 1999
To determine the location and distribution of chemoreceptors involved in the cardiovascular and respiratory responses to hypoxia of traira (Hoplias malabaricus), we measured heart rate, arterial blood pressure, ventilation frequency and amplitude of opercular movements during exposure to hypoxia and application of NaCN to either water bathing the gills
L I, Sundin +4 more
openaire +2 more sources
To determine the location and distribution of chemoreceptors involved in the cardiovascular and respiratory responses to hypoxia of traira (Hoplias malabaricus), we measured heart rate, arterial blood pressure, ventilation frequency and amplitude of opercular movements during exposure to hypoxia and application of NaCN to either water bathing the gills
L I, Sundin +4 more
openaire +2 more sources
Contracaecum sp. infection in Hoplias malabaricus (moncholo) from rivers and marshes of Colombia
Veterinary Parasitology, 2006Nematode infection indices were recorded in Hoplias malabaricus captured in six different rivers and a marsh belonging to the North Coast Basin of Colombia, and from the Amazon River, during February 2003-December 2004. Preliminary morphological analysis of nematodes indicated the presence of Contracaecum sp.
Jesús, Olivero-Verbel +5 more
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The X1X2Y sex chromosome system in the fish Hoplias malabaricus. II. Meiotic analyses
Chromosome Research, 1998The neotropical fish Hoplias malabaricus shows diversified cytotypes and may represent a group of distinct species. One of these cytotypes is characterized by 2n = 40 and 2n = 39 chromosomes in females and males, respectively, with a multiple sex chromosome system of the X1X1X2X2/X1X2Y type.
L A, Bertollo, C A, Mestriner
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Henneguya malabarica sp. nov. (Myxozoa, Myxobolidae) in the Amazonian fish Hoplias malabaricus
Parasitology Research, 1996Henneguya malabarica sp. nov. is described from the Amazonian teleost fish Hoplias malabaricus Boch, 1794, collected from the estuarine region of the Amazon river near Belém, Brazil. Plasmodia were represented by several vegetative nuclei, generative cells, and sporogony stages contained in cyst-like plasmodia.
C, Azevedo, E, Matos
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Morphological and Molecular Alterations in the Gonads of
ABSTRACT Mining is one of the most important activities in the economic development of several countries; however, it generates significant impacts on water resources, releasing metals in these environments. The exposure of fish to metals alters the redox capacity of the organism, increasing the production of ...
Breno Thuller +4 more
openaire +2 more sources