Results 81 to 90 of about 11,177 (206)

First record of Melanorivulus decoratus (Costa, 1989) (Cyprinodontiformes: Rivulidae) in the lower-middle São Francisco River, Brazil [PDF]

Acta Limnologica Brasiliensia
The non-annual rivulid Melanorivulus decoratus is an endemic fish from the São Francisco River basin that was previously recorded only in small tributaries along river’s middle stretch in northwestern Bahia.
Augusto Luís Bentinho Silva, Giancarlo Arraes Galvão, Silvia Maria Millan Gutierre, Luanny Rainy de Almeida Silva, Luiz Cezar Machado Pereira, Patricia Avello Nicola   +5 more
doaj   +1 more source

Closing the Gaps: Integrating Biological, Ecological and Taxonomic Data to Support the Identification and Conservation of the Atlantic Pygmy Devil Ray (Mobula hypostoma)

Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 5, May 2026.
ABSTRACT The Atlantic pygmy devil ray (Mobula hypostoma) is an endangered mobulid species whose conservation is hindered by taxonomic confusion and significant gaps in ecological and life history knowledge. Here, we present an integrative study that clarifies the species' taxonomic status, updates its distribution and synthesizes new and existing data ...
Atlantine Boggio‐Pasqua, Kim Bassos‐Hull, Guy M. W. Stevens, Jorge Manuel Morales‐Saldaña, Sylvain Adnet, Morgan A. Ferguson, Nicole A. Pelletier, Breanna C. DeGroot, Krystan A. Wilkinson, Emily Humble, Luis Fernando Del Moral‐Flores, Cody R. Mott, Jeffrey R. Guertin, Matthew J. Ajemian, Jessica Valek, Alexander Q. Fogg, Betty Laglbauer, Aristide Takoukam Kamla, Jessica H. Pate, Karen Fuentes, Lisa Hoopes, Ludwig Coulier, Michael Price, James Kinsler, Richard Collister, Ana Ferreira, Jennifer T. Wyffels, María del Pilar Blanco‐Parra, Ramо́n Bonfil, Juan Carlos Pérez‐Jiménez, Godefroy De Bruyne, Philip D. Doherty, Kristian Metcalfe, Youri Ivann Mvomo Minko, Andrielli M. Medeiros, Giuseppe Notarbartolo di Sciara   +35 more
wiley   +1 more source

Through the Prism of eDNA: Exploring Cryptic Freshwater Bivalves Diversity in a Mega‐Diverse Tropical Environment

Environmental DNA, Volume 8, Issue 3, May–June 2026.
Extensive eDNA sampling in remote tropical rivers revealed six new species, two of which were later confirmed through traditional surveys and formally described. eDNA also captured basin‐scale haplotype diversity, showing that pristine upstream areas harbor both more species and higher genetic diversity than sites affected by human activities ...
Vincent Prié, Sébastien Brosse, Alice Valentini, Benjamin Adam, Mathieu Rhone, Simon Clavier, Gregory Quartarollo, Manuel Lopes‐Lima   +7 more
wiley   +1 more source

Achieving accountability through decentralization : lessons for integrated river basin management [PDF]

While decentralization holds out the promise of increased flexibility and efficiency, the preconditions for realizing it are daunting. To draw lessons for productive decentralization in integrated river basin management, this paper surveys the ...
Mody, Jyothsna
core  

Beta diversity of macroinvertebrate assemblages associated with aquatic macrophytes in shallow lakes within a tropical floodplain-dammed river [PDF]

Acta Limnologica Brasiliensia
: Aims We assessed the beta diversity of macroinvertebrates associated with aquatic macrophytes in a dam-regulated river floodplain. We tested two hypotheses: (1) macroinvertebrates associated with aquatic macrophytes have higher beta diversity (higher ...
Marcos Callisto, Ricardo Solar, Daiana dos Reis Pelegrine, Marden Seabra Linares   +3 more
doaj   +1 more source

Institutional and policy analysis of river basin management : the Jaguaribe river basin, Ceara, Brazil [PDF]

The authors describe and analyze water resources reform and decentralization of river basin management in the state of Ceara, Northeast Brazil, the poorest part of the country. The Jaguaribe river basin is located entirely within the state of Ceara. With
Johnsson, Rosa Maria Formiga, Kemper, Karin   +1 more
core  

Ichthyofauna of the Paraopeba river: Richness, endemism, and conservation of a highly impacted basin

Water Biology and Security
The Paraopeba River, one of the largest tributaries of the São Francisco River basin, extends approximately 500 ​km and drains a densely populated region in Minas Gerais, Brazil.
Roberto CDL. Sousa, Iago S. Penido, Vinicius Abilhoa, Roger H. Dalcin, Adriano Hauer, Gilberto N. Salvador, Ivo G. Prado, Paulo S. Pompeu, Rodrigo L. Moura, Matheus O. Freitas   +9 more
doaj   +1 more source

Vegetation Components as Nature‐Based Solutions to Reduce Runoff and Soil Loss in a Brazilian Semi‐Arid Ecosystem

Ecohydrology, Volume 19, Issue 3, April/May 2026.
ABSTRACT Hydraulic roughness (log f) is invoked as an integrator of vegetation effects on overland flow in semi‐arid catchments, yet the quantitative contribution of individual cover components remains poorly resolved. This study aimed to elucidate the mechanisms by which shrub vegetation, surface litter and tree canopy modulate runoff generation ...
Victor Casimiro Piscoya, José Ramon Barros Cantalice, Vijay P. Singh, Moacyr Cunha Filho, Alex Souza Moraes, Robson Carlos Pereira de Melo, Luiz Diego Vidal Santos, Francisco Sandro Rodrigues Holanda, Alceu Pedrotti, Ludmilla Morais Pereira, Thaiana Brunes Feitosa, Renisson Neponuceno de Araújo Filho   +11 more
wiley   +1 more source

Evidence of lack of population substructuring in the Brazilian freshwater fish Prochilodus costatus

Genetics and Molecular Biology, 2008
Curimbatá-pióa (Prochilodus costatus Valenciennes, 1850) is an endemic species from the São Francisco River Basin with migratory habits, important ecological role in the ecosystem and relevant fishing importance.
Luis F. Carvalho-Costa, Terumi Hatanaka, Pedro M. Galetti Jr.   +2 more
doaj   +1 more source

First record of Moenkhausia costae (Steindachner 1907) in the Paraíba do Norte basin after the São Francisco River diversion

, 2021
: Construction of water diversions in drylands is boosted by increasing demands for freshwater often due to prolonged droughts. Even though these mega-enterprises result in benefits to society, it also poses a threat to freshwater biodiversity.
Rosemberg Fernandes Menezes (5084168), Railla Maria Oliveira Lima (12831016), Telton Pedro Anselmo Ramos (4656394), Silvia Yasmin Lustosa-Costa (12831013), José Etham de Lucena Barbosa (4656391)   +4 more
core   +1 more source