01812naa a2200277 a 450000100080000000500110000800800410001910000230006024501650008326000090024852009190025765000250117665000150120165000220121665000360123865000160127470000240129070000250131470000230133970000230136270000200138570000210140570000210142670000180144777300690146520518832017-03-13       2016    bl uuuu     u00u1 u    #d1 aOLIVEIRA, A. T. de  aHematological parameters of three freshwater stingray species (ChondrichthyesbPotamotrygonidae) in the middle Rio Negro, Amazonas state.h[electronic resource]  c2016  aThis paper aimed to study and compare the hematology of newborns, young, subadults, adult males, adult females and pregnant females of Potamotrygon wallacei (cururu stingray), Potamotrygon motoro and Paratrygon aiereba. Newborn cururu stingrays had lower red blood parameters than those of other development stages. Thrombograms and leukograms showed a conservative pattern between development stage, sexual dimorphism and pregnancy. In P. motoro and P. aiereba, variables relating to red blood parameters, biochemistry and leukograms showed little variation between the species' biological characteristics, thus showing that these variables are not good criteria for differentiating them within the same species. In conclusion, the development stage is an important factor for differentiating hematological properties in the cururu stingray, while this has not been observed in P. motoro and P. aiereba stingrays.  aDevelopmental stages  aHematology  aSexual dimorphism  aEtapa de desenvolvimento animal  aHematologia1 aSANTOS, M. Q. de C.1 aARAÚJO, M. L. G. de1 aLEMOS, J. R. G. de1 aSALES, R. S. de A.1 aARIDE, P. H. R.1 aPANTOJA-LIMA, J.1 aTAVARES-DIAS, M.1 aMARCON, J. L.  tBiochemical Systematics and Ecologygv. 69, p. 33-40, Aug. 2016.