Contribution to the knowledge of genus Lepocinclis (Euglenophyceae) of the state of Rio Grande do Sul, southern Brazil

2002 ◽  
Vol 106 ◽  
pp. 77-97
Author(s):  
Sandra Maria Alves-da-Silva ◽  
Carlos E. de M. Bicudo
Keyword(s):  
Rio Grande ◽  
The State ◽  
Southern Brazil ◽  
Rio Grande Do Sul

scholarly journals Freshwater temperature in the state of Rio Grande do Sul, Southern Brazil, and its implication for fish culture

2008 ◽  
Vol 6 (2) ◽  
pp. 275-281 ◽  
Author(s):  
Luciano de Oliveira Garcia ◽  
Carlos Eduardo Copatti ◽  
Flávio Wachholz ◽  
Waterloo Pereira Filho ◽  
Bernardo Baldisserotto
Keyword(s):  
Water Temperature ◽  
Fish Species ◽  
Native Species ◽  
Amazon Basin ◽  
Rio Grande ◽  
The State ◽  
Tropical Species ◽  
Southern Brazil ◽  
Rio Grande Do Sul ◽  
Lower Growth

In this study we verified data of water temperatures collected by CORSAN-RS from 1996 to 2004 in several cities of the state of Rio Grande do Sul, southern Brazil, and analyzed the possibility of raising the most cultivated fish species in Brazil. The water temperature from 1996 to 2004 was 16 to 28ºC in summer, 17 to 23ºC in fall, 14 to 17ºC (down to 9ºC in the coldest months) in winter and 14 to 21ºC in spring. Native species of this state, such as silver catfish (Rhamdia quelen), traíra (Hoplias malabaricus), dorado (Salminus brasiliensis), pintado (Pimelodus maculatus), as well as carps (family Cyprinidae), are resistant to the low winter temperatures. These species have a lower growth rate in coldest months (winter/spring) but a good development in warmer months (summer/fall), reaching a satisfactory performance throughout the year. In the periods of more intense cold, mortality of some introduced species, such as surubim from Amazon Basin (Pseudoplatystoma sp.), pirapitinga (Piaractus brachypomus), pirarucu (Arapaimas gigas), pacu (Piaractus mesopotamicus), tambaqui (Colossoma macropomum) and Nile tilapia (Oreochromis niloticus) may occur. In addition, as most tropical species have a thermal range for growth and reproduction between 20 to 28ºC, some species may have poor development even in fall. Therefore, water temperature in this state should be considered in the choice of fish species to be cultivated.

scholarly journals Diversity of Odonata (Insecta) in Seasonal Deciduous Forest fragments in southern Brazil (state of Rio Grande do Sul), with a new record for the state and comments on the seasonal distribution of the species

2019 ◽  
Vol 19 (4) ◽  
Author(s):  
Mateus Marques Pires ◽  
Carla Bender Kotzian ◽  
Cleber Sganzerla ◽  
Gabriel Prass ◽  
Marina Schmidt Dalzochio ◽  
...  
Keyword(s):  
Deciduous Forest ◽  
Rio Grande ◽  
Seasonal Distribution ◽  
The State ◽  
Seasonal Patterns ◽  
Forest Fragments ◽  
Southern Brazil ◽  
Rio Grande Do Sul ◽  
Farm Ponds ◽  
First Occurrence

Abstract: We present an Odonata (Insecta) check list of species occurring in a fragment of the Seasonal Deciduous Forest (Atlantic Forest biome) from the central region of the state of Rio Grande do Sul (RS), southern Brazil, along with a list of the odonate species recorded in this phytoecological region for the state. In addition, we provide comments on the seasonal distribution of the species occurring in the study area. Two streams and seven farm ponds located in the middle course of the Jacuí River basin were surveyed between December 2007 and February 2009. Overall, we recorded 49 species from 21 genera and six families. Argia serva Hagen in Selys, 1865 (Coenagrionidade) had its first occurrence record mentioned for the state, elevating to 183 the total number of Odonata species occurring in Rio Grande do Sul. The number of species recorded in the study area corresponds to ~26% of the known Odonata diversity in RS. Libellulidae was the most species-rich family (22 species, ~45% of the total), followed by Coenagrionidae (18 species, 37% of the total). The checklist for the Seasonal Deciduous Forest in RS indicated the occurrence of 83 species of Odonata in this phytoecological region (~45% of the known odonate species in the state). This elevated diversity could be related to the density of the vegetation structure. In the study area, 20 species were found in streams, and 45 in farm ponds. Species occurrence showed marked seasonal patterns in the study area, with 88% of the species recorded from summer to autumn, and no species detected in streams in the winter. Moreover, 70% of the species were recorded in either one or two seasons in farm ponds, while 65% occurred solely in one season in streams. This result indicates that the life cycle of Odonata in southern Brazil is strongly influenced by seasonal patterns in temperature.

A new species of Graphis (Graphidaceae: Lichenized Ascomycota) and a revised key of the genus in Rio Grande do Sul, southern Brazil

Phytotaxa ◽  
2016 ◽  
Vol 289 (3) ◽  
pp. 271 ◽  
Author(s):  
SHIRLEY CUNHA FEUERSTEIN ◽  
NATÁLIA MOSSMANN KOCH ◽  
FABIANE LUCHETA ◽  
VERA MARIA FERRÃO VARGAS ◽  
ROSA MARA BORGES DA SILVEIRA
Keyword(s):  
New Species ◽  
Rio Grande ◽  
The State ◽  
Title Page ◽  
Southern Brazil ◽  
Rio Grande Do Sul ◽  
Orange Pigment ◽  
Tlc Analysis ◽  
A New Species

(A new species of Graphis [Graphidaceae: Lichenized Ascomycota] and a revised key of the genus in Rio Grande do Sul, southern Brazil). In this paper we describe a new species of the lichen genus Graphis, namely G. suzanae Koch & Feuerstein. This species is characterized mainly by lirellae with entire labia, a partially exposed disc with orange pigment in the epithecium, a lateral thalline margin, a laterally carbonized excipulum, a clear hymenium, and transversely septate ascospores measuring 40–44 × 8–10 μm. The chemistry of the species was assessed through TLC analysis. A complete key with G. suzanae and 56 more species of Graphis that where previously recorded to the state of Rio Grande do Sul, southern Brazil, is included.

scholarly journals Salmonelloses in the State of Rio Grande do Sul, southern Brazil, 2002 to 2004

2013 ◽  
Vol 44 (3) ◽  
pp. 723-729 ◽  
Author(s):  
Vanessa Rech Wagner ◽  
Josete Baialardi Silveira ◽  
Eduardo Cesar Tondo
Keyword(s):  
Rio Grande ◽  
The State ◽  
Southern Brazil ◽  
Rio Grande Do Sul

Richness of Termites and Ants in the State of Rio Grande do Sul, Southern Brazil

Sociobiology ◽  
2014 ◽  
Vol 61 (2) ◽  
Author(s):  
Elena Diehl ◽  
Eduardo Diehl-Fleig ◽  
Emília Zoppas De Albuquerque ◽  
Luciane Kern Junqueira
Keyword(s):  
Rio Grande ◽  
The State ◽  
Southern Brazil ◽  
Rio Grande Do Sul

scholarly journals Pisces, Perciformes, Cichlidae, Apistogramma borellii (Regan, 1906): first record for state of Rio Grande do Sul, southern Brazil

Check List ◽  
2010 ◽  
Vol 6 (2) ◽  
pp. 222
Author(s):  
Luis Esteban Krause Lanés ◽  
Leonardo Maltchik ◽  
Carlos Alberto S. de Lucena
Keyword(s):  
Cichlid Fish ◽  
Rio Grande ◽  
First Record ◽  
The State ◽  
Fish Diversity ◽  
Southern Brazil ◽  
Rio Grande Do Sul

This note extends the distribution of the dwarf cichlid fish Apistogramma borellii, and is the first record of the species, and the genus for the state of Rio Grande do Sul, southern Brazil, suggesting that the fish diversity of wetlands, although relatively high, is still poorly investigated in southern Brazil.

scholarly journals Semiaquatic bugs (Hemiptera, Heteroptera, Gerromorpha) from Rio Grande do Sul, southern Brazil

Check List ◽  
2021 ◽  
Vol 17 (5) ◽  
pp. 1323-1343
Author(s):  
Juliana Mourão dos Santos Rodrigues ◽  
Oséias Martins Magalhães ◽  
Evaldo Alves Joaquim Júnior ◽  
José Ricardo Inacio Ribeiro ◽  
Felipe Ferraz Figueiredo Moreira
Keyword(s):  
Atlantic Forest ◽  
New Records ◽  
Rio Grande ◽  
The State ◽  
Southern Brazil ◽  
Rio Grande Do Sul ◽  
Pampa Biome ◽  
First Time

Rio Grande do Sul (RS) is the southernmost state in Brazil and includes areas within the Pampa and Atlantic Forest biomes. The semiaquatic bugs (Hemiptera, Heteroptera, Gerromorpha) from RS are poorly known, with only 14 previously recorded species. We carried out two expeditions in this state, in 2002 and 2019, across 19 municipalities. Here, we provide new records for 19 species, of which 13 are recorded for the first time from the state, five have their distributions expanded, and one is recorded again from a same locality previously reported in the literature. Furthermore, 13 species were collected for the first time in the Pampa biome and one in the Atlantic Forest.

scholarly journals Aves, Apodidae, Cypseloides senex (Temminck, 1826): geographical distribution in the state of Rio Grande do Sul, southern Brazil

Check List ◽  
2011 ◽  
Vol 7 (4) ◽  
pp. 473 ◽  
Author(s):  
Samuel Lopes Oliveira
Keyword(s):  
Geographical Distribution ◽  
Rio Grande ◽  
The State ◽  
Museum Collections ◽  
Southern Brazil ◽  
Rio Grande Do Sul ◽  
The Status ◽  
New Localities ◽  
Uruguay River

The Great Dusky Swift Cypseloides senex occurs mainly in Argentina, Bolivia and Brazil. Little is known about the status of this species in the state of Rio Grande do Sul, Brazil. To fill this gap, several ornithologists and museum collections were consulted for records. This paper presents records for nine new localities in the state of Rio Grande do Sul. Cypseloides senex occurs along the central and northeast portions of the Planalto escarpment and the upper valley of the Uruguay River. 

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