scholarly journals New record of Rineloricaria daraha Rapp Py-Daniel & Fichberg, 2008 from Rio Paca, upper Rio Negro, Amazon River basin

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2016 ◽  
Vol 12 (5) ◽  
pp. 1954 ◽  
Author(s):  
Juan David Bogotá-Gregory ◽  
Francisco Provenzano ◽  
Astrid Acosta-Santos ◽  
Edwin Agudelo Córdoba

The geographic distribution of a catfish of the family Loricariidae, Rineloricaria daraha Rapp Py-Daniel and Fichberg, 2008, which was only known from its type locality within the Rio Daraá, Brazil, is extended here within the Rio Negro basin to Colombia. This new record from Colombian territory is more than 700 km apart, in hydrological distance, from previously recorded locality in the Rio Daraá. Illustrations of diagnostic characters and morphometrics are provided based on Colombian specimens.

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2012 ◽  
Vol 8 (2) ◽  
pp. 294 ◽  
Author(s):  
Elizângela Silva de Brito ◽  
Christine Strüssmann ◽  
Ricardo Alexandre Kawashita-Ribeiro ◽  
Drausio Honório Morais ◽  
Robson Waldemar Ávila ◽  
...  

Distribution patterns of most of the 20 Neotropical freshwater turtles belonging to the family Chelidae are usually based on few locality records. We here report on vouchered records of three species of the chelid genus Mesoclemmys in the Brazilian state of Mato Grosso. Presence of M. vanderhaegei is confirmed for the Amazon River Basin, and M. gibba and M. raniceps are recorded in Mato Grosso for the first time.


2012 ◽  
Vol 42 (4) ◽  
pp. 567-570 ◽  
Author(s):  
Ricardo Eduardo Vicente ◽  
Wesley Dáttilo ◽  
Thiago Junqueira Izzo

In this study we present a new record of a plant-animal interaction: the mutualistic relationship between the specialist plant-ant Myrcidris epicharis Ward, 1990 (Pseudomyrmecinae) and its myrmecophyte host Myrcia madida McVaugh (Myrtaceae). We observed more than 50 individuals of M. madida occupied by M. epicharis in islands and margins of the Juruena River, in Cotriguaçu, Mato Grosso, Brazil (Meridional Amazon). We discuss a possible distribution of this symbiotic interaction throughout all the riparian forest of the Amazon River basin and its consequence to coevolution of the system.


2007 ◽  
Vol 7 (3) ◽  
pp. 73-81 ◽  
Author(s):  
Fernanda Duarte Amaral ◽  
Marco Mariante Hudson ◽  
Andrea Quirino Steiner ◽  
Carla Alecrim Colaço Ramos

This study aimed to collect information on the diversity of corals and calcified hydroids of the Manuel Luiz Marine State Park (state of Maranhão, Northeast Brazil) to aid in the development of a management plan for the park. A total of 21 cnidarian species were identified, of which 16 were corals and calcified hydroids. The bathymetric and geographic distribution of each of these species was extended. This area has a rich coral fauna in relation to other parts of Brazil and is comparable in diversity to the Abrolhos Islands (Bahia State) - an unexpected result considering the region's proximity to the Amazon River Basin. Most of the specimens of corals and calcified hydroids observed were bleached.


2014 ◽  
Vol 19 (2) ◽  
pp. 175-184 ◽  
Author(s):  
Gerardo Aymard-C ◽  
Lisa M. Campbell ◽  
Gustavo A. Romero-González

Gigabyte ◽  
2021 ◽  
Vol 2021 ◽  
pp. 1-14
Author(s):  
Alexandre Wagner Silva Hilsdorf ◽  
Marcela Uliano-Silva ◽  
Luiz Lehmann Coutinho ◽  
Horácio Montenegro ◽  
Vera Maria Fonseca Almeida-Val ◽  
...  

2021 ◽  
Author(s):  
Suyog Chaudhari ◽  
Erik Brown ◽  
Raul Quispe-Abad ◽  
Emilio Moran ◽  
Norbert Mueller ◽  
...  

<p>Given the ongoing and planned hydropower development projects in the Amazon River basin, appalling losses in biodiversity, river ecology and river connectivity are inevitable. These hydropower projects are proposed to be built in exceptionally endemic sites, setting records in environmental losses by impeding fish movement, altering flood pulse, causing large-scale deforestation, and increasing greenhouse gas emissions. With the burgeoning energy demand combined with the aforementioned negative impacts of conventional hydropower technology, there is an imminent need to re-think the design of hydropower to avoid the potentially catastrophic consequences of large dams. It is certain that the Amazon will undergo some major hydrological changes in the near future because of the compounded effects of climate change and proposed dams, if built with the conventional hydropower technology. In this study, we present a transformative hydropower outlook that integrates low-head hydropower technology (e.g., in-stream turbines) and multiple environmental aspects, such as river ecology and protected areas. We employ a high resolution (~2km) continental scale hydrological model called LEAF-Hydro-Flood (LHF) to assess the in-stream hydropower potential in the Amazon River basin. We particularly focus on quantifying the potential and feasibility of employing instream turbines in the Amazon instead of building large dams. We show that a significant portion of the total energy planned to be generated from conventional hydropower in the Brazilian Amazon could be harnessed using in-stream turbines that utilize kinetic energy of water without requiring storage. Further, we also find that implementing in-stream turbines as an alternative to large storage-based dams could prove economically feasible, since most of the environmental and social costs associated with dams are eliminated. Our results open multiple pathways to achieve sustainable hydropower development in the Amazon to meet the ever-increasing energy demands while minimizing hydrological, social, and ecological impacts. It also provides important insight for sustainable hydropower development in other global regions. The results presented are based on a manuscript under revision for Nature Sustainability.</p>


2017 ◽  
Vol 143 (705) ◽  
pp. 1936-1945 ◽  
Author(s):  
Wei Zhang ◽  
Gabriele Villarini ◽  
Gabriel A. Vecchi

2019 ◽  
Vol 8 (1) ◽  
Author(s):  
Victor Hugo da Motta Paca ◽  
Gonzalo E. Espinoza-Dávalos ◽  
Tim M. Hessels ◽  
Daniel Medeiros Moreira ◽  
Georges F. Comair ◽  
...  

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