scholarly journals Food-Energy-Water Security Considering Climate and Land Use Changes in the São Francisco River Basin

2019 ◽  
Author(s):  
Paula Siqueira ◽  
Gabriela Gesualdo ◽  
Jullian Sone ◽  
Pedro Zamboni ◽  
Rodrigo Pereira ◽  
...  
Keyword(s):  
Land Use ◽  
River Basin ◽  
Land Use Changes ◽  
Water Security ◽  
Food Energy ◽  
Sao Francisco River ◽  
São Francisco River

scholarly journals Land use and land cover changes and carbon stock valuation in the São Francisco river basin, Brazil

2021 ◽  
pp. 100247
Author(s):  
Milton Marques Fernandes ◽  
Márcia Rodrigues de Moura Fernandes ◽  
Júnior Ruiz Garcia ◽  
Eraldo Aparecido Trondoli Matricardi ◽  
Alexandre Herculano de Souza Lima ◽  
...  
Keyword(s):  
Land Use ◽  
Land Cover ◽  
River Basin ◽  
Carbon Stock ◽  
Land Cover Changes ◽  
Stock Valuation ◽  
Sao Francisco River ◽  
São Francisco River

scholarly journals Water Security and River Basin Revitalization of the São Francisco River Basin: A Symbiotic Relationship

Water ◽  
2021 ◽  
Vol 13 (7) ◽  
pp. 907
Author(s):  
Larissa Alves da Silva Rosa ◽  
Manuela Morais ◽  
Carlos Hiroo Saito
Keyword(s):  
Literature Review ◽  
River Basin ◽  
Water Use ◽  
Delphi Method ◽  
Ecological Integrity ◽  
Water Security ◽  
Symbiotic Relationship ◽  
Sao Francisco River ◽  
São Francisco River

What is river basin revitalization’s place in relation to water security? This question is the basis of our reflection, posed to help in the understanding of the evolution of both concepts, taking management of the São Francisco River Basin (Brazil) as a case study. With this main objective in mind, a literature review was carried out, followed by the collection of survey data on the watershed’s revitalization program. In this context, the members of the São Francisco River Basin Committee (a total of 124 participants) were consulted, using questionnaires with the Delphi method. The respondents (a total of 47) chose the river basin revitalization strategy as the main measure to achieving water security in the São Francisco River Basin. They also highlighted the importance of the environmental dimension, underlining measures for conservation and restoration of the ecosystem’s natural functions. The concept map tool was adopted for a comparative perspective between conceptual implications of revitalization and water security for the studied river basin’s conservation. The results showed the existence of a symbiotic relationship between both concepts. Consequently, we conclude that it is urgent to reconcile water use and ecosystem ecological integrity through the comprehensive concept of water security.

scholarly journals Operationalizing Water Security Concept in Water Investment Planning: Case Study of São Francisco River Basin

Water ◽  
2021 ◽  
Vol 13 (24) ◽  
pp. 3658
Author(s):  
Alexandre Lima de F. Teixeira ◽  
Anik Bhaduri ◽  
Stuart E. Bunn ◽  
Sérgio R. Ayrimoraes
Keyword(s):  
River Basin ◽  
Green Infrastructure ◽  
Water Security ◽  
Environmental Water ◽  
Security Threats ◽  
Investment Planning ◽  
Security Risks ◽  
Continuous Increase ◽  
Sao Francisco River ◽  
São Francisco River

Despite advances in water resources management and planning, the São Francisco River Basin in Brazil has suffered from systematic drought problems in recent years, leading to severe human and environmental water security threats. This paper aims to track the water security for different periods and its relations with the changes in physical and natural asset conditions. The paper explores how investment planning to mitigate the water security threats and explore opportunities to increase the value of investments. The paper finds that grey infrastructure has regulated threats from increasing in the downstream of the river basin, however, continuous increase in water security threats in the upstream of the basin threatens water security downstream. This is evident from the spatial connectivity and unidirection externalities. As the capacity to further increase in grey investment is reaching its limit in the downstream, the increases in green infrastructure investment upstream, especially in the Grande River basin, could be one the way to reduce the externalities and minimise the water security risks.

scholarly journals Induced reproduction and reproductive characteristics of Rhinelepis aspera Agassiz, 1829 (osteichthyes: Siluriformes, Loricariidae)

1998 ◽  
Vol 41 (3) ◽  
pp. 309-314 ◽  
Author(s):  
Yoshimi Sato ◽  
Nelsy Fenerich-Verani ◽  
José Roberto Verani ◽  
Hugo Pereira Godinho ◽  
Edson Vieira Sampaio
Keyword(s):  
Body Weight ◽  
Water Temperature ◽  
River Basin ◽  
Fertilization Rate ◽  
Pituitary Extract ◽  
Reproductive Characteristics ◽  
Sao Francisco River ◽  
Absolute Fecundity ◽  
São Francisco River

Rhinelepis aspera is the largest Loricariidae species found in the São Francisco river basin where it is now rarely caught. Brooders kept in tanks were hypophysed with crude carp pituitary extract (CCPE). Approximately 82% of the females responded positive to the treatment. The egg was opaque, demersal, round, yellow and adhesive. Egg stripping was done at 212 hour-degrees (= 8.2 h) after application of the second dose of CCPE (water temperature = 25-26 ºC). Hatching of the larvae occurred at 1022 hour-degrees (= 42.2 h), after fertilization of the eggs (water temperature =24-25 ºC). Fertilization rate of the eggs was 72%. Absolute fecundity (AF), initial fertility (IF) and final fertility (FF) in relation to the females' body weight are expressed, respectively, by the equations: AF = - 33993 + 122308 Wt (r² = 0.88), IF = - 14823 + 58619 Wt (r² = 0.71) and FF = - 6553 + 29741 (r² = 0.61)

scholarly journals Digenea of Hoplias intermedius and Hoplias malabaricus (Actinopterygii, Erythrinidae) from upper São Francisco River, Brazil

2015 ◽  
Vol 24 (2) ◽  
pp. 129-135 ◽  
Author(s):  
Danielle Priscilla Correia Costa ◽  
Cassandra Moraes Monteiro ◽  
Marilia Carvalho Brasil-Sato
Keyword(s):  
River Basin ◽  
Feeding Habits ◽  
Minas Gerais ◽  
New Host ◽  
Hoplias Malabaricus ◽  
Parasitic Fauna ◽  
Sao Francisco River ◽  
São Francisco River ◽  
New Location

A total of 103 specimens of Hoplias intermedius (Günther, 1864) and 86 specimens of H. malabaricus (Bloch, 1794) from the upper São Francisco River, State of Minas Gerais were collected between April 2011 and August 2013, and their parasitic fauna were investigated. Four species of Digenea were found: metacercariae of Austrodiplostomum sp., and Ithyoclinostomum sp.; and adult specimens of Phyllodistomum spatula Odhner, 1902, and Pseudosellacotyla lutzi (Freitas, 1941) Yamaguti, 1954. The prevalence of the metacercariae was higher than that of the adult digeneans of erythrinids from the upper São Francisco River as a result of piscivorous feeding habits of these adult erythrinids. The presence of metacercariae and adult digeneans indicate that they act as intermediate and definitive hosts, respectively, in their biological cycles. Hoplias intermedius is a new host for the four species of Digenea, and the São Francisco River basin is a new location for the known geographical distributions of P. spatula and P. lutzi.

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