Results 21 to 30 of about 2,134 (221)

Eficácia de duas formulações de vacinas autógenas para o controle da lactococose em surubins híbridos Pseudoplatystoma corruscans x Pseudoplatystoma reticulatum

, 2014
Identificou-se no presente estudo o agente patogênico causador de surtos de estreptococose em cachara e surubins como sendo a Lactococcus garvieae. Considerando que a lactococose é uma doença emergente de importância econômica mundial, que gera surtos de mortalidade em massa em diversas espécies de peixes, avaliamos a possibilidade de prevenção e ...
Hirla Costa Silva Fukushima
openalex   +3 more sources

ESTRUCTURA HISTOLOGICA DE LOS OVARIOS DE Pseudoplatystoma corruscans (AGASSIZ, 1829) PIMELODIDAE, SILURIFORMES

Boletim do Instituto de Pesca, 2019
Foi analisada a estrutura histológica dos ovários de Pseudoplatystoma corruscans, estabelecendo-se uma escala de maturação gonadal nos perí­­odos de pré e pós-desova.
Silvia FLORES, Lourdes HIirt de KUNKEL
doaj   +1 more source

DNA metabarcoding assessment of Neotropical ichthyoplankton communities is marker-dependent. [PDF]

Ecol Evol, 2023
DNA metabarcoding has been applied as a rapid, cost‐effective, and accurate taxonomy tool, allowing the identification of multiple individuals simultaneously. The combined use of the three markers increased the genera detection rates by 25%–87.5%, allowing an increased taxonomic coverage and robust taxonomic identification of complex Neotropical ...
Teixeira DF, Hilário HO, Santos GB, Carvalho DC.   +3 more
europepmc   +2 more sources

Multiple genetic lineages of anadromous migratory Mekong catfish Pangasius krempfi revealed by mtDNA control region and cytochrome b. [PDF]

Ecol Evol, 2023
We used the control region and cytochrome b to quantify the genetic diversity and to elucidate historical origins and migratory patterns of Pangasius krempfi. Fish were sampled along the Mekong tributaries and coastal areas in the Mekong Delta (Vietnam) and referenced to samples in Pakse (Laos). The results indicate moderate levels of genetic diversity,
Duong TY, Nguyen NT, Tran DD, Le TH, Nor SAM.   +4 more
europepmc   +2 more sources

Infestações parasitárias em alevinos de surubim hí- brido (Pseudoplatystoma reticulatum x P. corruscans)

Revista Brasileira de Medicina Veterinaria, 2012
ABSTRACT. Pádua S.B., Ishikawa M.M., Kasai R.Y.D., Jerônimo G.T., Carrijo-Mauad J.R. [Parasitic infestations in hybrid surubim catfish fry (Pseudoplatystoma reticulatum x P. corruscans)]. Infestações parasitárias em alevinos de surubim hí- brido (Pseudoplatystoma reticulatum x P. corruscans).
Santiago Benites de Pádua, Márcia Mayumi Ishikawa, Rodrigo Yutaka Dichoff Kasai, Gabriela Tomas Jerônimo, Juliana Rosa Carrijo Mauad   +4 more
openalex   +4 more sources

Machine learning models accurately predict clades of proteocephalidean tapeworms (Onchoproteocephalidea) based on host and biogeographical data. [PDF]

Cladistics
Abstract Proteocephalids are a cosmopolitan and diverse group of tapeworms (Cestoda) that have colonized vertebrate hosts in freshwater and terrestrial environments. Despite the ubiquity of the group, key macroevolutionary processes that have driven the group's evolution have yet to be identified.
Vieira Alves P, da Silva RJ, Scholz T, de Chambrier A, Luque JL, Duchenko A, Janies D, Jacob Machado D.   +7 more
europepmc   +2 more sources

Pseudoplatystoma corruscans (Spix & Agassiz, 1829) [PDF]

, 2011
Fil: Nadalin, Diego Oscar. División Zoología Vertebrados. Facultad de Ciencias Naturales y Museo.
Nadalin, Diego O., López, Hugo Luis, Oldani, Norberto Oscar   +2 more
openaire   +3 more sources

Diet-tissue discrimination factors of three neotropical freshwater fishes and a comparison of the trophic position

Journal of Limnology, 2023
The trophic discrimination factor (TDF) is a key parameter for stable isotope analysis and due to a lack of species-specific TDFs, mean universal values have been used, resulting in uncertainties about the trophic position of species and a call for more
Gislaine Iachstel Manetta, Matheus Maximilian Ratz Scoarize, Driele Delanira-Santos, Patrícia Almeida Sacramento, Vinícius de Andrade Urbano, Evanilde Benedito   +5 more
doaj   +1 more source

River Damming Impacts on Fish Habitat and Associated Conservation Measures

Reviews of Geophysics, Volume 61, Issue 4, December 2023., 2023
Abstract River damming has brought great benefits to flood mitigation, energy and food production, and will continue to play a significant role in global energy supply, particularly in Asia, Africa, and South America. However, dams have extensively altered global river dynamics, including riverine connectivity, hydrological, thermal, sediment and ...
Qiuwen Chen, Qinyuan Li, Yuqing Lin, Jianyun Zhang, Jun Xia, Jinren Ni, Steven J. Cooke, Jim Best, Shufeng He, Tao Feng, Yuchen Chen, Daniele Tonina, Rohan Benjankar, Sebastian Birk, Ayan Santos Fleischmann, Hanlu Yan, Lei Tang   +16 more
wiley   +1 more source

Edad, crecimiento, mortalidad e incidencia de las variaciones del nivel hidrométrico del río Paraná en la abundancia del surubí pintado (Pseudoplatystoma corruscans) [PDF]

, 2013
Los objetivos son determinar los parámetros de crecimiento, índice de mortalidad e incidencia de las variaciones del nivel hidrométrico en la abundancia de las poblaciones del surubí pintado.
Norberto Oldani, Ovidio Ecclesia, Claudio Baigún   +2 more
openalex   +3 more sources