Results 21 to 30 of about 159 (110)

Life‐History and Landscape Context Shaping the Spatial Genetic Structure of the Migratory Amazonian Fish Prochilodus nigricans

Freshwater Biology, Volume 71, Issue 6, June 2026.
ABSTRACT The Neotropical migratory fish Prochilodus nigricans plays a critical ecological and socioeconomic role in the Amazon basin. Nevertheless, little is known about its populations and the genetic diversity pattern of the species. In light of this, the current study investigates the spatial genetic structure and diversity of P.
Ueslei Lopes, Josiane Ribolli, Carolina B. Machado, Rosane Silva‐Santos, Pedro M. Galetti Jr., Patrícia D. Freitas   +5 more
wiley   +1 more source

Produção e caracterização de farinha de silagem química de pescado, destinado à piscicultura

Pubvet, 2019
A silagem química de peixe é um produto líquido feito com peixes inteiros ou partes deles, com adição de um ácido ou mistura, sendo que a liquefação da massa se faz pela ação de enzimas já presentes no peixe.
Dariane Beatriz Schoffen Enke, Paulo Rodinei Soares Lopes, Cleber Bastos Rocha, Juvêncio Luiz Osório Fernandes Pouey   +3 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

Sexual Reproduction of Plasmopara viticola in Wine Regions of Southern Brazil, Climatic Suitability, Oospore Formation and Germination

Plant Pathology, Volume 75, Issue 3, May–June 2026.
This is the first study to confirm Plasmopara viticola oospore formation in all major wine‐growing regions of southern Brazil and oospore germination under local conditions on susceptible and resistant hosts, and to apply ecological niche modelling to predict climatic suitability for oospore formation.
Camila Bitencourt, Valdecir Perazzoli, Fabio Ribeiro de Freitas, Cristian Soldi, Aparecido Lima da Silva, Leocir José Welter   +5 more
wiley   +1 more source

First molecular data for Lernaea cyprinacea (Copepoda: Cyclopoida) infesting Odontesthes bonariensis, a commercially important freshwater fish in Argentina

Revista Brasileira de Parasitologia Veterinária, 2018
Parasitic copepods of the family Lernaeidae are often found infesting freshwater fishes worldwide. They cause lernaeosis, a disease that can lead to serious pathogenic effects on their fish hosts. The most common lernaeid is the Lernaea cyprinacea, which
Iris Aparecida Soares, Víctor Salinas, Omar del Ponti, Miguel Alberto Mancini, José Luis Luque   +4 more
doaj   +1 more source

Gill evolution in Neotropical electric fishes: Comparative phylogenetic evidence for hypoxia‐driven adaptation

Functional Ecology, Volume 39, Issue 8, Page 1940-1956, August 2025.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Tropical freshwater fishes are often exposed to hypoxia, which limits aerobic metabolism and drives the evolution of diverse physiological, behavioural and morphological adaptations.
William G. R. Crampton, Leilani B. Pathak, Francesco H. Janzen, Joseph C. Waddell, Nathan R. Lovejoy   +4 more
wiley   +1 more source

Fish distribution across altitudinal gradients in the Upper Paraguay River Basin: Implications for conservation in the Pantanal region

Conservation Science and Practice, Volume 7, Issue 7, July 2025.
This paper approaches the patterns in fish distribution across the altitudinal gradient in the Upper Paraguay River basin, from uplands to the floodplain. We compiled more than 75,000 available fish records and registered 342 fish species and your distribution along altitudinal gradient. Floodplain portion have higher species diversity than headwaters,
Adriana Maria Espinoza Fernando, Francisco Severo‐Neto, Fabiane Silva Ferreira, Lúcia Mateus, Karina K. Tondato‐Carvalho, Elaine Antoniassi Luiz Kashiwaqui, Heriberto Gimenes Junior, Wladimir M. Domingues, Carla Simone Pavanelli, Henrique Ledo Lopes Pinho, Jerry Penha, Yzel Rondon Súarez   +11 more
wiley   +1 more source

Clinostomum sp. (Digenea: Clinostomidae) e Ascocotyle sp. (Digenea: Heterophyidae): metacercárias com potencial zoonótico em peixes da bacia do Rio Tramandaí­­, sul do Brasil

Boletim do Instituto de Pesca, 2018
Os helmintos pertencentes í­Â  Classe Trematoda têm grande importí­¢ncia na ictioparasitologia, onde a Subclasse Digenea apresenta parasitos com potencial zoonótico.
Alice POZZA, Fábio LIMA, Mateus Luís HAAS, Pablo Cesar LEHMANN ALBORNOZ   +3 more
doaj   +1 more source

Ácidos graxos Ômega-3 e Ômega-6 na nutrição de peixes – fontes e relações

Revista de Ciências Agroveterinárias, 2014
Existem duas séries de ácidos graxos essenciais que não podem ser sintetizados pelos animais e humanos e devem ser supridos pela dieta. A série n-6 é derivada do ácido linoléico (LA) e a série n-3, do ácido alfalinolênico (ALN).
Silvia Maria Guimarães de Souza, Rodrigo Javier Vargas Anido, Francielle Carlet Tognan   +2 more
doaj  

Communities of parasite metazoans in Piaractus brachypomus (Pisces, Serrasalmidae) in the lower Amazon River (Brazil)

Revista Brasileira de Parasitologia Veterinária, 2016
The aim of this study was to investigate the component community of parasite metazoans of Piaractus brachypomus in the lower Amazon River, northern Brazil.
Marcos Sidney Brito Oliveira, Marcos Tavares-Dias   +1 more
doaj   +1 more source