Results 41 to 50 of about 1,598 (193)

Genetic Structure and Conservation Strategies for the Endangered Catfish Steindachneridion melanodermatum (Siluriformes, Pimelodidae) in the Iguaçu River, Brazil

Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 6, June 2026.
ABSTRACT The endemic catfish Steindachneridion melanodermatum from the Iguaçu River basin, southern Brazil, is one of the most threatened pimelodid species. Comprehension of its genetic structure is imperative to the formulation of long‐term efficacious conservation strategies. A genetic analysis was conducted on three populations from the lower Iguaçu
Jesús Hernández‐Gómez, Caio Felipe da Silva, Carolina de Oliveira Magalhães, Bruno Henrique Mattiello, Juliano Tupan Coragem, Ricardo Utsunomia, Fabio Porto‐Foresti, Fernanda Dotti do Prado, Roberto Ferreira Artoni   +8 more
wiley   +1 more source

Perfil hematológico do Sorubim lima (Siluriformes, pimelodidae) de cativeiro: intervalos de referência, morfologia e citoquímica celular [PDF]

, 2013
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Agrárias. Programa de Pós-Graduação em Aquicultura, Florianópolis, 2013A hematologia consiste em uma análise rápida e prática para auxiliar o diagnóstico do desequilíbrio
Bianchi, Micael Borile
core  

Sistemática da família Pimelodidae Swainson, 1838 (Teleostei: Siluriformes) [PDF]

, 2012
The catfish family Pimelodidae currently comprises about 100 valid species and although its monophyly has been corroborated by some authors, the relationships within the family are poorly known, and derived features for some genera are lacking.
Rocha, Marcelo Sales
core  

Photoperiod influence on the cultivation of Steindachneridion scriptum (Pisces, Pimelodidae) juvenile [PDF]

Brazilian Archives of Biology and Technology, 2008
This study aimed to evaluate the influence of photoperiod on juvenile suruvi (Steindachneridion scriptum) in six photoperiods: 24L-0D (L= Light; D= Dark), 18L-6D, 14L-10D, 10L-14D, 6L-18D and 0L-24D. Juveniles measuring 176.8 ± 13.2mm and weighing 60.2 ± 16.0g were distributed in eighteen 150-L aquariums, stocked with 8 juveniles per aquarium.
Zaniboni-Filho, Evoy, Reynalte-Tataje, David, Nuñer, Alex Pires de Oliveira, Meurer, Samira   +3 more
openaire   +4 more sources

Age and growth of Pimelodella pappenheimi (siluriformes, pimelodidae) from an Atlantic Forest Stream in Southern Brazil

Brazilian Archives of Biology and Technology, 1999
Studies were performed to determine the growth curves in length and weight for Pimelodella pappenheimi in the "das Pombas" stream, a coastal stream susceptible to the flash flood phenomenon.
Marina Faria do Amaral, José Marcelo Rocha Aranha, Márcia Santos de Menezes   +2 more
doaj   +1 more source

The Flooding Gradient Affects Seed Dispersal by Fruit‐Eating Fishes in Amazonian Whitewater Floodplain Forests

Biotropica, Volume 58, Issue 3, May 2026.
This research approaches the interaction between frugivorous fish and the flooded forests in the central Amazon. We evaluated the fruit consumption by fish and the seed dispersal potential along the flood gradient. We tested the hypothesis that the role of fish as seed dispersers varies between low várzea (LV) and high várzea (HV) forests.
Gilvan Costa, Sandra Bibiana Correa, Florian Wittmann, Jochen Schöngart, Maria Teresa Fernandez Piedade, Efrem Jorge Ferreira, Leonardo Maltchik   +6 more
wiley   +1 more source

Linking rivers, mixing faunas: How artificial connectivity between the Middle and Upper Paraná River basins shapes fish diversity in a tributary of the Itaipu Reservoir, Brazil

Journal of Fish Biology, Volume 108, Issue 2, Page 648-668, February 2026.
Abstract This work aimed to investigate the distribution and occurrence of fish species along the São Francisco Falso Braço Norte (SFFBN) River basin, a tributary of the Middle Paraná River basin now artificially connected to the Upper Paraná ecoregion, to evaluate how such connectivity may affect the biogeographic distribution and regional composition
Lucas E. P. Kampfert, João C. Maicrovicz, Daniel R. Blanco, Denise Lange, Carla S. Pavanelli, Heleno Brandão   +5 more
wiley   +1 more source

Relatório de estágio e efeito de diferentes dietas no desempenho larval de jundiá rhamdia quelen (quoy e gaimard, 1824) [PDF]

, 2013
TCC (graduação) - Universidade Federal de Santa Catarina, Centro de Ciências Agrárias, Curso de Agronomia.O estágio foi realizado no Laboratório de Biologia e Cultivo de Peixes de Água Doce (LAPAD/AQI/CCA/UFSC), de março a junho de 2013.
Cano, Clara Luna de Bem Barreto
core  

New records of crustaceans infesting Phractocephalus hemioliopterus (Siluriformes: Pimelodidae), the large catfish from the Amazon

Revista Mexicana de Biodiversidad, 2019
The aim of the present study was to investigate the infracommunities of ectoparasitic crustaceans in Phractocephalus hemioliopterus Bloch and Schneider, 1801, a catfish from the lower Amazon River, in the state of Pará, eastern Amazon region, Brazil ...
Marcos Sidney B. Oliveira, Lincoln L. Corrêa, Raissa A. Gonçalves, Lígia R. Neves, Luiza Prestes, Drielly O. Ferreira, Marcos Tavares-Dias   +6 more
doaj   +1 more source

Supplementary taxonomic description of Demidospermus pinirampi (Monogenoidea, Dactylogyridae), with a new host record and an expansion of its distribution range [PDF]

Acta Amazonica, 2017
During a survey conducted in the Lajeado Reservoir of the Tocantins River, in the state of Tocantins, Brazil, dactylogyrids were recovered from the gills of Pimelodina flavipinnis.
Julio Cesar Cenci de AGUIAR, Glauco Baptista Franco BUENO, Sonia Maria Cursino dos SANTOS, Edson Aparecido ADRIANO   +3 more
doaj   +2 more sources