scholarly journals New record of planktonic cladoceran to the upper Paraná River, Brazil: Bosmina huaroensis Delachaux, 1918

2000 ◽  
Vol 60 (4) ◽  
pp. 633-636 ◽  
Author(s):  
L. F. M. VELHO ◽  
F. A. LANSAC-TÔHA ◽  
C. C. BONECKER

In this paper we register the first occurrence of Bosmina huaroensis Delachaux, 1918 in the upper Paraná River basin, which is probably the first record to Brazil. Illustrations and an updated description of the species are given.

Check List ◽  
2013 ◽  
Vol 9 (6) ◽  
pp. 1543 ◽  
Author(s):  
Claudimar Jean dos Santos ◽  
Luiz Fernando Caserta Tencatt ◽  
Renata Rúbia Ota ◽  
Weferson Júnio da Graça

Herein we report the second record for Leporinus tigrinus in the Upper Paraná River basin, based on two specimens collected during field studies at Sucuriú River, Mato Grosso do Sul State and two specimens from Claro River, Goiás State. These records extend the species’ distribution in approximately 500 km southwards from the first record in Corumbá dam area, Goiás State. Moreover, we discuss whether the species is native in the Upper Paraná River basin.


2017 ◽  
Vol 92 (1) ◽  
pp. 261-267 ◽  
Author(s):  
M. H. S. Yabu ◽  
A. P. Vidotto-Magnoni ◽  
A. C. R. Casimiro ◽  
D. A. Z. Garcia ◽  
A. D. A. Costa ◽  
...  

Check List ◽  
2017 ◽  
Vol 13 (2) ◽  
pp. 2094
Author(s):  
Fabiane Silva Ferreira ◽  
Wagner Vicentin ◽  
Yzel Rondon Súarez

Astyanax lineatus was previously known only from the Paraguay river basin and we report the first record from the Paraná river basin near the municipality of Sidrolândia, Mato Grosso do Sul state, Brazil. The species was found in Lajeado Stream, a tributary of the Anhanduí River, which belongs to the Pardo River sub-basin of the Paraná river basin.


Check List ◽  
2015 ◽  
Vol 11 (5) ◽  
pp. 1729 ◽  
Author(s):  
Fernando R. Carvalho ◽  
Lilian Casatti ◽  
Angelo R. Manzotti ◽  
Délcero C. W. Ravazzi

Arapaima gigas (Schinz), the “pirarucu”, is one of largest freshwater fish of the Neotropical region, naturally occurring in the Amazon, Essequibo, and Orinoco river basins. Herein, it is first recorded from the Grande River, in the upper Paraná River basin. This record is based on the finding of one dead specimen on the left margin of the Grande River, and in situ observation of juveniles and adults in the river.


2011 ◽  
Vol 11 (2) ◽  
pp. 55-62 ◽  
Author(s):  
Lilian Paula Vasconcelos ◽  
Yzel Rondon Súarez ◽  
Sidnei Eduardo Lima-Junior

In order to describe some aspects of the population ecology of Bryconamericus stramineus in the Guiraí River basin, upper Paraná River basin, samples were taken bimonthly from October 2006 to August 2007 at seven sites in the basin. A total of 960 individuals, including 532 females, 316 males, and 112 of undetermined sex, were collected. A significant variation in the sex ratio was observed (Χ2 = 32.82; p < 0.001). Females were larger (59.7 mm) than males (58.9 mm); however, males showed a larger angular growth coefficient (b) than females. It was estimated that 50% of females were sexually mature at 36.4 mm. The highest rate of ovary development was observed in October, while in June 2007 no mature females were found. Mean fecundity was estimated at 313 eggs, and the relative fecundity was 184.6 eggs/g. The asymptotic was estimated at 62.8 mm and the growth rate at 0.76. The growth performance index was calculated at 3.47, the longevity at 3.94 years and the mortality (M) at 1.18 years. The recruitment pattern of the species showed peaks concentrated in periods of low rainfall.


Biologia ◽  
2017 ◽  
Vol 72 (6) ◽  
Author(s):  
Carlos Alexandre Fernandes ◽  
Lucas Baumgärtner ◽  
Leonardo Marcel Paiz ◽  
Vladimir Pavan Margarido ◽  
Ana Luiza de Brito Portela-Castro

AbstractKaryotype and chromosomal characteristics of both minor and major rDNA of


Check List ◽  
2006 ◽  
Vol 2 (3) ◽  
pp. 9 ◽  
Author(s):  
Éder André Gubiani ◽  
Arlei José Holzbach ◽  
Gilmar Baumgartner ◽  
Leontino Borges de Rezende Neto ◽  
Fernando Bergmann

None


Author(s):  
RAFAEL COUTO ROSA SOUZA ◽  
RAONI ROSA RODRIGUES ◽  
ANA CAROLINA LACERDA RÊGO ◽  
ÁTILA RODRIGUES ARAÚJO ◽  
IVO GAVIÃO PRADO ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document