Ichthyofauna of the Água das Araras stream, Paranapanema River basin, upper Paraná River system, Southern Brazil

2021 ◽  
pp. 1-15
Author(s):  
Bruno A. Galindo ◽  
Alexandro D. A. Costa ◽  
Dhiego G. Ferreira ◽  
Thiago D. Garcia ◽  
Augusto Frota ◽  
...  
Keyword(s):  
River Basin ◽  
River System ◽  
Paraná River ◽  
Southern Brazil ◽  
Parana River ◽  
Upper Paraná River

scholarly journals Comparison of the diet of Alouatta caraya (Primates: Atelidae) between a riparian island and mainland on the Upper Parana River, southern Brazil

2008 ◽  
Vol 25 (3) ◽  
pp. 419-426 ◽  
Author(s):  
Gabriela Ludwig ◽  
Lucas M. Aguiar ◽  
Walfrido K. Svoboda ◽  
Carmen L. S. Hilst ◽  
Italmar T. Navarro ◽  
...  
Keyword(s):  
Sampling Method ◽  
Riparian Forest ◽  
Diet Breadth ◽  
Paraná River ◽  
Food Type ◽  
Left Bank ◽  
Southern Brazil ◽  
Alouatta Caraya ◽  
Parana River ◽  
Upper Paraná River

Howler monkeys (Alouatta Lacèpéde, 1799) are folivores-frugivores with flexible diets depending on conditions. Here, we compare the diets of Alouatta caraya (Humboldt, 1812) in two riparian forests (island and mainland), in Porto Rico region, Upper Paraná River, Southern Brazil. Howlers were followed from October 2004 to September 2005 in the riparian forest of a 1,050 ha island and in the continuous riparian forest on the mainland (left bank of the river). The "scan sampling" method with instantaneous samples every 15 minutes was used. Besides vines, diet breadth was similar: 17 species consumed on the island versus 16 species on the mainland. Both consumed leaves followed by fruits more than any other food type (leaves: island - 65%, mainland - 49%, fruits: island - 24%, mainland - 46%). Even though the plant Cecropia pachystachya Trécul is less abundant in the mainland it was the item most consumed in both locations all year long, which suggests its importance for the howlers. Diet also varied both seasonally and between the island and mainland, apparently following changes in local abundance of each item and due to plant phenologies.

scholarly journals Population aspects of Bryconamericus stramineus in streams of the upper Paraná River basin, Brazil

2011 ◽  
Vol 11 (2) ◽  
pp. 55-62 ◽  
Author(s):  
Lilian Paula Vasconcelos ◽  
Yzel Rondon Súarez ◽  
Sidnei Eduardo Lima-Junior
Keyword(s):  
River Basin ◽  
Paraná River ◽  
Ovary Development ◽  
Recruitment Pattern ◽  
Growth Coefficient ◽  
Parana River ◽  
Upper Paraná River ◽  
Upper Paraná River Basin ◽  
Sexually Mature ◽  
Paraná River Basin

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.

Chromosomal characteristics of rDNA in a conserved karyotype of two Sternopygus macrurus (Gymnotiformes: Sternopygidae) populations from upper Paraná River basin

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

AbstractKaryotype and chromosomal characteristics of both minor and major rDNA of

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
Keyword(s):  
River Basin ◽  
New Record ◽  
First Record ◽  
Paraná River ◽  
Parana River ◽  
First Occurrence ◽  
Upper Paraná River ◽  
Upper Paraná River Basin ◽  
Paraná River Basin

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.

scholarly journals Fish, Piquiri River, Upper Paraná River basin, Paraná state, Brazil

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
Keyword(s):  
River Basin ◽  
Paraná River ◽  
Parana River ◽  
Upper Paraná River ◽  
Upper Paraná River Basin ◽  
Paraná River Basin

None

FISH DIVERSITY DOWNSTREAM OF HYDROPOWER PLANTS OF THE UPPER PARANÁ RIVER BASIN, BRAZIL

2016 ◽  
Author(s):  
RAFAEL COUTO ROSA SOUZA ◽  
RAONI ROSA RODRIGUES ◽  
ANA CAROLINA LACERDA RÊGO ◽  
ÁTILA RODRIGUES ARAÚJO ◽  
IVO GAVIÃO PRADO ◽  
...  
Keyword(s):  
River Basin ◽  
Paraná River ◽  
Fish Diversity ◽  
Parana River ◽  
Hydropower Plants ◽  
Upper Paraná River ◽  
Upper Paraná River Basin ◽  
Paraná River Basin

scholarly journals Conservation status of Astyanax biotae (Characiformes: Characidae) in Mato Grosso do Sul, upper Paraná River basin, Brazil

Biotemas ◽  
2018 ◽  
Vol 31 (4) ◽  
pp. 47-56 ◽  
Author(s):  
Maria José Alencar Vilela ◽  
Francisco Severo-Neto ◽  
Fernando Rogério Carvalho
Keyword(s):  
River Basin ◽  
Conservation Status ◽  
Paraná River ◽  
Mato Grosso ◽  
Parana River ◽  
Upper Paraná River ◽  
Upper Paraná River Basin ◽  
Mato Grosso Do Sul ◽  
Paraná River Basin

Astyanax biotae é uma espécie originalmente descrita em um afluente do Rio Paranapanema, bacia do alto Paraná. Durante amostragens realizadas em drenagens dos rios Ivinhema e Verde, no sistema do alto Paraná, em Mato Grosso do Sul, exemplares de A. biotae foram coletados em cabeceiras de pequenos riachos e em lagoas de várzea, tanto em Unidades de Conservação como em áreas de agricultura intensiva. Os dados morfomerísticos de 20 indivíduos analisados foram similares aos da série-tipo. Exemplares testemunhos estão depositados nas coleções ictiológicas da UFMS (ZUFMS), UEMS (CPUEMS) e UNESP (DZSJRP). Com base nos critérios da IUCN, sugerimos sua classificação como Menos Preocupante (LC) no estado de Mato Grosso do Sul, considerando principalmente a inexistência de ameaças efetivas em duas das áreas de ocorrência da espécie, situadas dentro de Unidades de Conservação. No entanto, reforçamos a urgência em medidas para a proteção das regiões de cabeceiras de riachos, a fim de evitar o aumento do desmatamento, assoreamento e poluição agrícola, problemas recorrentes no Cerrado, que comprometem severamente a manutenção desses hábitats e suas espécies. É necessário investir em estudos sobre a biologia da espécie e ampliar as amostragens, buscando diminuir os vazios amostrais ainda existentes nas drenagens estaduais.

Sign in / Sign up

Export Citation Format

Share Document