Results 41 to 50 of about 182 (118)

Hybridization, Maternal Inheritance, and Evolutionary Time of Divergence of Endangered Species of Hypancistrus (Siluriformes: Loricariidae) in the Xingu River

Ecology and Evolution, Volume 16, Issue 5, May 2026.
We uncover recent hybridization dynamics among three endemic Hypancistrus species from the Xingu River, including the critically endangered H. zebra. Mitogenomic analyses reveal unidirectional maternal inheritance and recent evolutionary radiation (< 0.5 Ma), explaining their retained reproductive compatibility.
Franciele F. Kerniske, Bruno F. Melo, Leandro M. Sousa, Tiago M. Degrandi, Roberto F. Artoni   +4 more
wiley   +1 more source

Dietary Probiotics Improve Growth, Immunity and Disease Resistance in Fish Against Aeromonas hydrophila Infection

Aquaculture, Fish and Fisheries, Volume 6, Issue 2, April 2026.
Probiotics offer a promising alternative to antibiotics for managing Aeromonas hydrophila infections in aquaculture. Dietary supplementation of probiotics increases fish health, growth performance, and immune responses, while reducing antibiotic reliance in fish farming.
Md. Ridwanul Islam, Md. Adnan Sajib, Nurunnahar Nadira, Alokesh Kumar Ghosh   +3 more
wiley   +1 more source

Distribution modelling for Neotropical freshwater stingrays Potamotrygon brachyura and Potamotrygon motoro (Myliobatiformes, Potamotrygonidae) in the Uruguay River basin

Journal of Fish Biology, Volume 108, Issue 1, Page 43-56, January 2026.
Abstract This study aimed to identify geographical distribution patterns of the giant short‐tailed river stingray Potamotrygon brachyura and the motoro stingray Potamotrygon motoro in the Uruguay River basin. Data on presence/absence of stingrays were based on fishers' knowledge accessed by interviews through expeditions in Brazil, Argentina and ...
Danilo Araujo Soares Pereira, Roberto E. Reis, Nelson F. Fontoura   +2 more
wiley   +1 more source

Assessing the population structure of Plagioscion squamosissimus (Teleostei, Perciformes, Sciaenidae) from the São Francisco River, Bahia, Brazil, using body morphology and otolith shape signatures

Journal of Fish Biology, Volume 108, Issue 1, Page 69-85, January 2026.
Abstract The south American silver croaker, Plagioscion squamosissimus, holds significant importance for the artisanal fisheries in the sub‐middle and lower courses of the São Francisco River, located in northeastern Brazil. To investigate the population structure of this species along its longitudinal profile, a total of 150 individuals (50 fish per ...
F. L. Freitas, N. S. Pereira, P. B. Pinheiro, R. Schroeder, A. T. Correia   +4 more
wiley   +1 more source

First Records of Length–Weight Relationships for Ten Fish Species From the Middle Stretch of the Uruguay River, Southern Brazil

Journal of Applied Ichthyology, Volume 2026, Issue 1, 2026.
This study estimated the length–weight relationships (LWRs) of 10 fish species from the middle stretch of the Middle Uruguay River basin, aiming to provide new morphometric data and contribute to the knowledge of Neotropical ichthyofauna. Fish were collected at seven sites with sampling conducted at each site during every season, totaling 84 sampling ...
Lucas Adriano Pachla, Marthoni Vinicius Massaro, David Augusto Reynalte-Tataje, Sandra Maria Hartz, Jacob Burbank   +4 more
wiley   +1 more source

Low‐Effort eDNA Sampling Reveals Fish Community Patterns in a Neotropical River Basin

Environmental DNA, Volume 7, Issue 4, July–August 2025.
Low eDNA sampling effort (< 10 sample sites) using a portable on‐site kit with syringe filters and a modest water volume (< 500 mL per site) provided a rapid and robust snapshot of fish biodiversity. Environmental DNA based species richness increases along the upstream‐downstream gradient showing a significant negative correlation with river elevation ...
Daniel Cardoso Carvalho, Heron Oliveira Hilário, Igor Henrique Nascimento, Guilherme Costa Berger, Paulo Santos Pompeu   +4 more
wiley   +1 more source

NON-STARCH POLYSACCHARIDE IN DIETS FOR HYBRID SURUBIM: EFFECTS ON METABOLISM PLASTICITY

Boletim do Instituto de Pesca, 2019
This study aimed to analyze the effect of mango meal, a non-starch polysaccharide, as a carbohydrate source on the metabolism plasticity and performance indicators for hybrid surubim (Pseudoplatystoma fasciatum x P.
Douglas Henrique de Holanda ANDRADE, Janilson Felix SILVA, José Fernando Bibiano MELO, Ranilson de Souza BEZERRA   +3 more
doaj   +1 more source

Expansion of fluvial transport of commodities through the Pantanal floodplains of Brazil: Potential impacts and interference by climate change

Conservation Science and Practice, Volume 7, Issue 7, July 2025.
Abstract Inland waterways have historically been viewed as a desirable means for transporting commodities. However, creating and maintaining navigable river channels can entail substantial geomorphological modifications, resulting in changes to the ecohydrology of a river and its adjacent floodplains.
Pierre Girard, Fabio de Oliveira Roque, Wilson Cabral de Sousa Jr, Stephen K. Hamilton   +3 more
wiley   +1 more source

Ten relevant questions for applying biodiversity offsetting in the Pantanal wetland

Conservation Science and Practice, Volume 7, Issue 7, July 2025.
Here, we formulated 10 questions that discuss and illustrate how offsetting can be applied to maintain wetland integrity, economic fairness, and biodiversity conservation in the Pantanal and Upper Paraguay River basin (UPRB) We provided examples of offsetting implementation opportunities, analyze spatial compliance deficits, and illustrate requirements
Reinaldo Francisco Ferreira Lourival, Fabio de Oliveira de Roque, Fábio Padilha Bolzan, Angélica Guerra, Alessandro Pacheco Nunes, Ana Cristyna Reis Lacerda, André Valle Nunes, Amanda Alves, Antônio Conceição Paranhos Filho, Danilo Bandini Ribeiro, Donald P. Eaton, Elizângela Silva Brito, Erich Fischer, Francisco Valente Neto, Grasiela Porfirio, Gláucia Helena Fernandes Seixas, João Onofre Pereira Pinto, Jose Manuel Ochoa Quintero, José Sabino, Larissa Sayuri Moreira Sugai, Leticia Couto Garcia, Marcelo H. Matsumoto, Mariza Silva, Mauricio Almeida‐Gomes, Mauricio Stefanes, Morena Mills, Olivier Pays, Pierre Cyril Renaud, Rafael Dias Loyola, Rafael Dettogni Guariento, Renato Crouzeilles, Rafael Morais Chiaravalloti, Ronaldo Gonsalves Morato, Sandra Aparecida Santos, Solange Ikeda‐Castrillon, Thiago Izzo, Thiago Borges Fernandes Semedo, Walfrido Moraes Tomas   +37 more
wiley   +1 more source

Sobrevivência e crescimento de larvas de surubim, Pseudoplatystoma corruscans (Pisces, Pimelodidae), em diferentes densidades de estocagem - DOI: 10.4025/actascianimsci.v28i2.653

Acta Scientiarum: Animal Sciences, 2008
O objetivo deste estudo foi avaliar a sobrevivência e o crescimento de larvas de surubim, Pseudoplatystoma corruscans , em cinco densidades de cultivo: 15, 35, 55, 75 e 95 larvas/L, distribuídas em um delineamento inteiramente ao acaso com três ...
Rodrigo Campagnolo, Alex Pires de Oliveira Nuñer   +1 more
doaj   +1 more source