Results 41 to 50 of about 2,394 (182)

Vitamin E and reduced glutathione in Prochilodus lineatus (curimba) semen cryopreservation (Characiformes: Prochilodontidae) [PDF]

Neotropical Ichthyology, 2012
This study investigated the addition of antioxidants vitamin E and reduced glutathione on curimba (Prochilodus lineatus) semen cryopreservation and compared sodium bicarbonate solution and distilled water as activators.
Daniella A. J. Paula, Estefânia S. Andrade, Luis D. S. Murgas, Viviane O. Felizardo, Elissandra U. Winkaler, Walmes Zeviani, Rilke T. F. Freitas   +6 more
doaj   +5 more sources

A meta‐analytic review of monoterpene for fish anaesthesia

Fish and Fisheries, Volume 24, Issue 3, Page 367-380, May 2023., 2023
Abstract The use of anaesthetic agents has been increasing to address the welfare needs of different fish species in scientific and aquaculture practices. MS‐222 is the most used synthetic anaesthetic but some limitations and side effects have been reported.
Luís Félix, Raquel Vieira, Sandra M. Monteiro, Carlos Venâncio   +3 more
wiley   +1 more source

Conservation threats and future prospects for the freshwater fishes of Ecuador: A hotspot of Neotropical fish diversity

Journal of Fish Biology, Volume 99, Issue 4, Page 1158-1189, October 2021., 2021
ABSTRACT Freshwater fish communities in Ecuador exhibit some of the highest levels of diversity and endemism in the Neotropics. Unfortunately, aquatic ecosystems in the country are under serious threat and conditions are deteriorating. In 2018–19, the government of Ecuador sponsored a series of workshops to examine the conservation status of Ecuador's ...
Windsor E. Aguirre, Gabriela Alvarez‐Mieles, Fernando Anaguano‐Yancha, Ricardo Burgos Morán, Roberto V. Cucalón, Daniel Escobar‐Camacho, Iván Jácome‐Negrete, Pedro Jiménez Prado, Enrique Laaz, Katherin Miranda‐Troya, Ronald Navarrete‐Amaya, Fredy Nugra Salazar, Willan Revelo, Juan F. Rivadeneira, Jonathan Valdiviezo Rivera, Edwin Zárate Hugo   +15 more
wiley   +1 more source

Vulnerability of the biota in riverine and seasonally flooded habitats to damming of Amazonian rivers

Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 31, Issue 5, Page 1136-1149, May 2021., 2021
Abstract The extent and intensity of impacts of multiple new dams in the Amazon basin on specific biological groups are potentially large, but still uncertain and need to be better understood. It is known that river disruption and regulation by dams may affect sediment supplies, river channel migration, floodplain dynamics, and, as a major adverse ...
Edgardo M. Latrubesse, Fernando M. d'Horta, Camila C. Ribas, Florian Wittmann, Jansen Zuanon, Edward Park, Thomas Dunne, Eugenio Y. Arima, Paul A. Baker   +8 more
wiley   +1 more source

Paleogene emergence and evolutionary history of the Amazonian fossorial fish genus Tarumania (Teleostei: Tarumaniidae)

Frontiers in Ecology and Evolution, 2022
Tarumania walkerae is a rare fossorial freshwater fish species from the lower Rio Negro, Central Amazonia, composing the monotypic and recently described family Tarumaniidae.
Bruno F. Melo, Mário C. C. de Pinna, Lúcia H. Rapp Py-Daniel, Jansen Zuanon, Cristhian C. Conde-Saldaña, Fabio F. Roxo, Claudio Oliveira   +6 more
doaj   +1 more source

Microplastics in freshwater fishes: Occurrence, impacts and future perspectives

Fish and Fisheries, Volume 22, Issue 3, Page 467-488, May 2021., 2021
Abstract Microplastics (MPs) are small, plastic particles of various shapes, sizes and polymers. Although well studied in marine systems, their roles and importance in freshwater environments remain uncertain. Nevertheless, the restricted ranges and variable traits of freshwater fishes result in their communities being important receptors and strong ...
Ben Parker, Demetra Andreou, Iain D. Green, J. Robert Britton   +3 more
wiley   +1 more source

Cryogenic preservation of embryos ofProchilodus lineatus(Valenciennes, 1836) (Characiforme; Prochilodontidae) [PDF]

Zygote, 2009
SummaryWhile the freezing techniques of mammal embryos have been providing promising results, the cryopreservation of teleostean eggs and embryos have remained unsuccessful up to now. Therefore, this work aimed to develop a procedure of cryogenic preservation of embryos ofProchilodus lineatusand to observe, at both structural and ultrastructural levels,
Ninhaus-Silveira, Alexandre, Foresti, Fausto, de Azevedo, Alexandre, Agostinho, Claudio Angelo, Verissimo-Silveira, Rosicleire   +4 more
openaire   +3 more sources

Early ontogeny and swimming behavior of larvae of the neotropical fish Prochilodus costatus Valenciennes 1850 and Prochilodus argenteus Spix & Agassiz 1829 (Characiformes: Prochilodontidae) [PDF]

, 2016
Early development of fish larvae is a highly dynamic process and its study may provide important information about ontogenetic development, bioenergetic growth, behaviour, taxonomic characteristics for identification in natural environments ...
Arantes, FP, Godinho, HP, Sales, NAIARA GUIMARAES, Santos, JE, Santos, ML   +4 more
core   +1 more source

Evidence of lack of population substructuring in the Brazilian freshwater fish Prochilodus costatus

Genetics and Molecular Biology, 2008
Curimbatá-pióa (Prochilodus costatus Valenciennes, 1850) is an endemic species from the São Francisco River Basin with migratory habits, important ecological role in the ecosystem and relevant fishing importance.
Luis F. Carvalho-Costa, Terumi Hatanaka, Pedro M. Galetti Jr.   +2 more
doaj   +1 more source

Ecological Factors and Diversification among Neotropical Characiforms [PDF]

, 2012
Morphological and DNA sequence data has been used to propose hypotheses of relationships within the Characiformes with minimal comparative discussion of causes underpinning the major intraordinal diversification patterns.
Duque Escobar, Santiago Roberto, Granado Lorencio, Carlos Antonio, Guisande González, Cástor, Pelayo Villamil, Patricia, Prieto Piraquive, Edgar Francisco, Vera Rodríguez, Manuel   +5 more
core   +1 more source