Results 31 to 40 of about 1,346 (161)

The use of morphometric analysis to predict the swimming efficiency of two Neotropical long-distance migratory species in fish passage

Neotropical Ichthyology
This study investigated the external body morphology (based on morphometric data) and the swimming efficiency in fish passages (based on the ascent time in a fish ladder) of two Neotropical long-distance migratory species.
Lucileine de Assumpção, Maristela Cavicchioli Makrakis, Sergio Makrakis, Ricardo Luiz Wagner, Patrícia Sarai da Silva, Ariane Furtado de Lima, Elaine Antoniassi Luiz Kashiwaqui   +6 more
doaj   +1 more source

Localization and distribution of CCK-8, NPY, Leu-ENK-, and Ghrelin- in the digestive tract of Prochilodus lineatus (Valenciennes, 1836) [PDF]

Anais da Academia Brasileira de Ciências, 2020
This study describes the histological characteristics and distribution of gastrointestinal tract endocrine cells (ECs) of Prochilodus lineatus (detritivorous fish) using immunohistochemical procedures. The digestive tract of P.
CARLOS E. BARRIOS, JUAN JOSÉ SANTINÓN, HUGO A. DOMITROVIC, SEBASTIÁN SÁNCHEZ, DAVID R. HERNÁNDEZ   +4 more
doaj   +1 more source

Statistical distribution models for migratory fish in Jacuí basin, South Brazil

Neotropical Ichthyology
The aim of the present study was to identify the distribution patterns of migratory fishes in the Jacuí river basin (Rio Grande do Sul, South Brazil), proposing a statistical model of presumed distribution based on geomorphologic environmental data ...
Thaís P. Alves, Nelson F. Fontoura
doaj   +1 more source

Histopathologic changes in the kidney tissue of Prochilodus lineatus Valenciennes, 1836 (Characiformes, Prochilodontidae) induced by sublethal concentration of Trichlorfon exposure

Brazilian Archives of Biology and Technology, 2002
Studies were carried out to analyse the kidney histopathological alterations of "curimbatá", Prochilodus lineatus, were analyzed. An acute bioassay was made by the water contamination with 0.2muml/l of Dipterex 500 (Trichlorfon).
Marcelo Leite da Veiga, Edson de Lara Rodrigues, Fabio Juliano Pacheco, Maria José Tavares Ranzani-Paiva   +3 more
doaj   +1 more source

Fish Sperm Subpopulations Detection, Separation, and Application: Current State and Trends

Reviews in Aquaculture, Volume 18, Issue 4, September 2026.
Modern advances in sperm biology highlight the necessity of recognising intra‐ejaculate heterogeneity as a central concept for advancing both the fundamental understanding of fertilisation processes and the development of artificial reproduction techniques in fishes. ABSTRACT Sperm subpopulations represent a fundamental manifestation of intra‐ejaculate
Viktoriya Dzyuba, William V. Holt, Borys Dzyuba   +2 more
wiley   +1 more source

Menthol and eugenol as natural anesthetics for early juveniles of curimba

Revista Brasileira de Zootecnia, 2018
The objective of this study was to evaluate menthol and eugenol as anesthetics for early juveniles of curimba, Prochilodus lineatus. Juveniles of 4.0±0.5 g and a total length of 8.8±0.1 cm were exposed to the anesthetics menthol (20, 30, 40, 50, 60, 70 ...
Elias Fernandes de Medeiros Junior, Silvio Akira Uehara, Evelize Cristina Rodrigues, Glauber David Almeida Palheta, Nuno Filipe Alves Correia de Melo, Lícius de Sá Freire, Rodrigo Takata   +6 more
doaj   +1 more source

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

Comparison of Curimba semen (Prochilodus lineatus) induced by pituitary extract from chicken, rabbit or carp

, 2004
Foram selecionados 48 Curimbás (Prochilodus lineatus) e hipofisados com extrato de hipófise de frango (EHF), extrato de hipófise de coelho (EHCo) e o controle com extrato de hipófise de carpa (EHC).
Povh, Jayme Aparecido, Souza, Ederval Donizeti de, Moraes, Gentil Vanini de, Streit Jr., Danilo Pedro, Caçador, Walangiery, Ribeiro, Ricardo Pereira, Sakaguti, Eduardo Shigueiro   +6 more
core   +1 more source

Estudio del desarrollo embrionario del sábalo (Prochilodus lineatus)

, 2010
Currently, the storage of fish spermatozoa through cryopreservation is widely used. Although it is of common knowledge that the process of freezing / thawing generates DNA fragmentation of spermatozoa, the consequences of this process on embryonary ...
Oberlender, G., Botta, P., Pereira, G. J.M., S Arranz, P Botta, G Oberlender, Murgas, L. D.S., Arranz, S., Sciara, A., LDS Murgas, A Sciara, GJM Pereira   +11 more
core   +1 more source

Morphometric characteristics of Prochilodus lineatus (Valenciennes 1847), of the migratory and resident stocks of the river Mogí-Guaçu, São Paulo State, Brazil=Características morfométricas do curimbatá (Prochilodus lineatus) dos estoques migradores e residentes do rio Mogi-Guaçu, Estado de São Paulo, Brasil [PDF]

Acta Scientiarum: Animal Sciences, 2012
The species Prochilodus lineatus, with great commercial relevance in the rivers Grande, Pardo and Mogi-Guaçu, is characterized by the formation of great shoals which are capable of developing wide migratory displacements.
Márcia Regina Fragoso Machado, Fausto Foresti   +1 more
doaj   +1 more source