scholarly journals Interdisciplinary research networks and science-policy-society interactions in the Uruguay River Basin

2020 ◽  
pp. 100601
Author(s):  
Marcelo Saguier ◽  
Andrea K. Gerlak ◽  
Pilar Carolina Villar ◽  
Claudio Baigún ◽  
Virginia Venturini ◽  
...  
2016 ◽  
Vol 38 (4) ◽  
pp. 439
Author(s):  
Gislaine Rezer Costa ◽  
Mariana Balhego Rocha ◽  
Marcus Vinicius Morini Querol ◽  
Jacir Dal Magro ◽  
Michel Mansur Machado ◽  
...  

2017 ◽  
Vol 20 (2) ◽  
pp. 121-138 ◽  
Author(s):  
MARÍA GABRIELA MERLINSKY

ABSTRACT The purpose of this work is to analyze the way in which various collective actions have given way to new public deliberation arenas around the environmental issue in Argentina. On the basis of the results of a study on the ‘‘conflict over the pulp mills on the Uruguay River” and the ‘‘conflict over the environmental restoration of the Matanza-Riachuelo River basin,” our intention is to delve into a theoretical perspective that takes into account the productivity of these events and to analyze different forms of contagion among public arenas. By presenting the results of the case studies, we will refer to the territorial productivity of environmental conflicts.


2010 ◽  
Vol 8 (1) ◽  
pp. 1-6 ◽  
Author(s):  
Amalia M Miquelarena ◽  
Hugo L López

Hyphessobrycon nicolasi is described from the Uruguay River basin in the Mesopotamian Region, Entre Ríos, Argentina. The new species can be distinguished from all congeners by the presence of a well-defined oblique and marginal black stripe on each lobe of the caudal fin. Other characters defining H. nicolasi are the possession of 1-3 teeth with 3-10 cusps on maxilla; outer premaxillary row with 2-3 small teeth, with 5 or 7 cusps; iv-vi, 27-36 anal-fin rays; 33-36 scales on the longitudinal series; two vertical dark spots on the humeral region; dorsal and anal fins dappled in black and base of caudal fin bearing conspicuous black spot; and the presence of bony hooks on the rays of dorsal, anal and caudal fins of the mature males.


RBRH ◽  
2017 ◽  
Vol 22 (0) ◽  
Author(s):  
Fernando Mainardi Fan ◽  
Paulo Rógenes Monteiro Pontes ◽  
Diogo Costa Buarque ◽  
Walter Collischonn

ABSTRACT System for hydrological forecasting and alert running in an operational way are important tools for floods impacts reduction. The present study describes the development and results evaluation of an operational discharge forecasting system of the upper Uruguay River basin, sited in Southern Brazil. Developed system was operated every day to provide experimental forecasts with special interest for Barra Grande and Campos Novos hydroelectric power plants reservoirs inflow, with 10 days in advance. We present results of inflow forecasted for floods occurred between July 2013 to July 2016, the period which the system was operated. Forecasts results by visual and performance metrics analysis showed a good fit with observations in most cases, with possibility of floods occurrence being well predicted with antecedence of 2 to 3 days. Comparing the locations, it was noted that the sub-basin of Campos Novos, being slower in rainfall-runoff transformation, is easier forecasted. The difference in predictability between the two basins can be observed by the coefficient of persistence, which is positive from 12h in Barra Grande and from 24h to Campos Novos. These coefficient values also show the value of the rainfall-runoff modeling for forecast horizons of more than one day in the basins.


Check List ◽  
2013 ◽  
Vol 9 (4) ◽  
pp. 820
Author(s):  
Adriana Almirón ◽  
Jorge Casciotta ◽  
María Cecilia Bruno ◽  
Lubomír Piálek ◽  
Klára Doubnerová ◽  
...  

Leporinus amae is known from the Rio Apuaê (type locality), Rio Canoas and Rio Caveiras tributaries of the Uruguay River basin, in Brazil. The original description of this species was mainly based on a single specimen lacking intraspecific variation in meristic and morphometric of most characters. We expand the range of distribution and report the first occurrence of Leporinus amae in Misiones Province, Argentina. Additionally, we provide a supplementary description of the species.


2018 ◽  
Vol 94 (2) ◽  
pp. 547-556 ◽  
Author(s):  
Wilson S. Serra ◽  
Marcelo Loureiro

In this article we describe a new species of the annual fish genusAustrolebiasfrom the lower Uruguay river basin. The fusion of the urogenital papilla to the first anal fin ray in males and the pigmentation pattern, indicates a close relationship with the clade formed byA.bellottii,A.melanoorus, andA.univentripinnis. The new species can be differentiated from those by the following combination of characters: presence of well-defined light bands contrasting with the sides of the body, the distal portion of the anal fin dark gray, pelvic fins dark bluish green and bases united at about 50–80% on their medial margins, pectoral fins with iridescent blue sub-marginal band, and general coloration of body bluish green. The new species can only be found in wetlands of the Queguay river, an area included in the Uruguayan protected areas system and represents so far the only annual fish species endemic to the lower Uruguay river basin.


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