Results 51 to 60 of about 1,598 (193)

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

Amazonian fish migration as a social–cultural–ecological process

People and Nature, Volume 7, Issue 12, Page 3297-3312, December 2025.
Abstract In this study, we highlight the rich perspectives and explanations of fish migration held by Indigenous groups across the Amazon. We present the aspects of Indigenous cosmological stories, drawing from our exploratory review of cultural ethnographies and grey literature, as well as the authors' own experiences. We ask, how do Amazonian peoples
LuLu Victoria‐Lacy, Thiago B. A. Couto, Natalia C. Piland, Jesús Dámaso, Stephannie Fernandes, Simone Athayde, Elizabeth P. Anderson   +6 more
wiley   +1 more source

The Ecological Memory of Fish Assemblages in Tropical Agroecosystems With Different History of Landscape Changes

Freshwater Biology, Volume 70, Issue 12, December 2025.
ABSTRACT Environmental changes can have persistent effects on the local and regional dynamics of multispecies assemblages. However, the extent of historical legacies on current diversity patterns may depend on the trajectory and intensity of the environmental change. Here, we investigate how persistent decadal land use and land cover (LULC) changes are
Jaquelini O. Zeni, Gabriel L. Brejão, Lilian Casatti, Tadeu Siqueira   +3 more
wiley   +1 more source

Histamine in Brazilian Foods: A Comprehensive Review of Occurrence and Risk Assessment for Intoxication and Intolerance

Food Science &Nutrition, Volume 13, Issue 11, November 2025.
Even though histamine plays an important role in human health, it has been associated with food intoxication and intolerance episodes. The most relevant, current state of knowledge regarding histamine's biochemical and health aspects is provided. Histamine levels are provided for 17 food groups, including 335 food types and 11,437 samples, allowing ...
Maria Beatriz A. Gloria, Fabiana B. Diniz, Bruno M. Dala‐Paula, Biane Philadelpho, José Eduardo Gonçalves, Ederlan S. Ferreira, Livia Simon Sarkadi   +6 more
wiley   +1 more source

Cytogenetic studies on fishes of the family pimelodidae (siluroidei) [PDF]

, 2014
Four fish species of the family Pimelodidae were analyzed. Bergiaria westermani and two different Pimelodus species have the same diploid chromosome number (2n - 56). Despite some differences in chromosome structure, these species are highly similar in karyotype and differ from Pimelodella sp., which presents a reduction in chromosome number to 2n = 46.
Dias, A. L., Foresti, F.
openaire   +1 more source

Karyotype variability in neotropical catfishes of the family Pimelodidae (Teleostei: Siluriformes)

Neotropical Ichthyology
Karyotypic data are presented for four species of fish belonging to the Pimelodidae family. These species show a conserved diploid number, 2n = 56 chromosomes, with different karyotypic formulae.
Américo Moraes Neto, Maelin da Silva, Daniele Aparecida Matoso, Marcelo Ricardo Vicari, Mara Cristina de Almeida, Maria João Collares-Pereira, Roberto Ferreira Artoni   +6 more
doaj   +1 more source

Local Environmental Variables Predict Fish Species Richness and Composition in Sand Beaches of a Neotropical River

River Research and Applications, Volume 41, Issue 9, Page 1949-1958, November 2025.
ABSTRACT Local and regional species diversity is influenced by historical factors, resource availability, biotic interactions, the presence of resources, and adequate environmental conditions. We evaluated the effects of local environmental variables and spatial structure on fish species richness and composition along sandy beaches of a Neotropical ...
Ronaldo Souza da Silva, Jean Carlo Gonçalves Ortega, Lucas Pires de Oliveira, Vinicius Guerra, Werther Pereira Ramalho, Fabiano Corrêa, Mariana Costa Fratari, Lisandro Juno Soares Vieira, Luciano Fogaça Assis de Montag   +8 more
wiley   +1 more source

HEMOGLOBINAS EM SILURIFORMES DA AMAZÔNIA CENTRAL. III CARACTERIZAÇÃO IMUNOLÓGICA DE ALGUNS BAGRES E CASCUDOS. [PDF]

Acta Amazonica, 1983
Resumo Hemoglobinas de peixes Siluriformes pertencentes às famílias Doradidae; Auchenipteridae; Pimelodidae; Angeneiosidae; Loricariidae e Callichthyidae foram testadas contra anti-soros preparados para hemoglobina de Oxydoras niger (Doradidae: cuiú-cuiú)
Maria Isabel G. Portus, Maria Laise C. Vieira, A. R. Oliveira, A. Focesi Jr   +3 more
doaj   +1 more source

Treinamento alimentar de juvenis de Surubim Híbrido. [PDF]

, 2011
TCC (graduação) - Universidade Federal de Santa Catarina, Centro de Ciências Agrárias, Curso de Engenharia de Aquicultura.O surubim híbrido (Pseudoplatystoma corruscans x P.
Maia, Cláudia Rodrighero
core  

Karyotypes of two species of the genus Pimelodus (Siluriformes, Pimelodidae).

Folia biologica, 2009
A cytogenetic study was conducted on two species of the genus Pimelodus that were collected from the Piquiri river, Paraná, Brazil: Pimelodus paranaensis and Pimelodus heraldoi. Both had a diploid number of 2n=56 chromosomes and a fundamental number (FN) of 104. In P.
Fernando Rodrigo, Treco, Ana Lúcia, Dias   +1 more
openaire   +2 more sources