Results 61 to 70 of about 528 (174)

Revision of genus Steindachneridion (Siluriformes: Pimelodidae)

open access: yesNeotropical Ichthyology
After several years collecting in the type-localities and studying representative samples of genus Steindachneridion Eigenmann & Eigenmann, 1919 from Brazilian and foreign museums, a taxonomic revision of the Recent species of the genus is presented ...
Julio Cesar Garavello
doaj   +1 more source

Evolutionary history of Middle American Rhamdia (Siluriformes: Heptapteridae) inferred from comparative mitogenomic data: Insights on historical biogeography and cave colonization in the group

open access: yesJournal of Systematics and Evolution, Volume 63, Issue 6, Page 1501-1518, November 2025.
Investigating the systematics and biogeography of Neotropical catfishes of the genus Rhamdia refined phylogenetic hypotheses, including deep paraphyly of Rhamdia laticauda, supported northward dispersal catalyzed by emergence of the Panamanian Isthmus and imply that cave colonization is widespread, convergent, and recent, with established cave‐dwelling
Jairo Arroyave   +6 more
wiley   +1 more source

Cladóceros en el desarrollo del sistema digestivo de larvas de blanquillo Sorubim cuspicaudus [PDF]

open access: yes, 2021
El blanquillo (Sorubim cuspicaudus) es una especie importante en la pesquería colombiana con potencialidad de cultivo por la calidad de su carne, alto valor comercial y buena adaptación al cautiverio; sus larvas al ser altriciales, presentan reducida ...
Oviedo Montiel, Harold de Jesús
core  

Ultrastructure of Sorubim lima (Teleostei, Siluriformes, Pimelodidae) spermiogenesis [PDF]

open access: yes, 2000
The spermiogenesis and the spermatozoon ultrastructure of Sorubim lima were studied. Our observations showed that early spermatids are round-shaped cells, have spherical nucleus with diffuse chromatin, small quantity of mitochondria and large amount of ...
Quagio Grassiotto, Irani [UNESP]   +1 more
core   +4 more sources

Population genetics of three threatened catfish species in heterogeneous environments of the Cauca River, Colombia [PDF]

open access: yesNeotropical Ichthyology
Neotropical catfishes Ageneiosus pardalis, Pimelodus grosskopfii and Sorubim cuspicaudus are migratory fishes of commercial importance that exhibit decreasing populations due to overfishing and other anthropic interventions.
Natalia Restrepo-Escobar   +2 more
doaj   +2 more sources

Chemical composition and fatty acid profile of Trans-Andean Shovelnose catfish Sorubim cuspicaudus [PDF]

open access: yesIsraeli Journal of Aquaculture - Bamidgeh, 2014
Chemical composition and fatty acid profile were studied in larvae and adult Trans-Andean shovelnose catfish muscle. The chemical composition in dry matter of the larvae and the food they consumed were: moisture, 89.2%, 91.8%; protein, 79.8%, 70.6%; ethereal extract, 7.8% 7.2%; and ash, 12.7% and 14.5%, respectively.
Prieto-Guevara, Martha Janeth   +3 more
openaire   +1 more source

Hybrid sorubim víscera protein concentrate in the diets for barred sorubim. [PDF]

open access: yes, 2013
The current study evaluated the growth performance and the haematological profile of barred sorubim fed with levels of hybrid sorubim viscera protein concentrate (0.0; 5.0; 10.0 e 15.0%) in isoprotein and isoenergetic diets.
FONSECA, G. G.   +11 more
core  

Use of common salt (NaCl) in the control Epistylis sp. in hybrid sorubim

open access: yesAgrarian, 2019
Epistylis sp. é um parasito emergente no Brasil e é comumente encontrado em surubim Pseudoplatystoma spp. durante os estágios iniciais de produção e, portanto, requer o estabelecimento de medidas profiláticas e terapêuticas, visando o seu controle. Portanto, o presente estudo teve como objetivo avaliar o uso de sal comum para controlar Epistylis sp. em
Robson Andrade Rodrigues   +5 more
openaire   +3 more sources

Megalocytivirus: A Review of Epidemiology, Pathogenicity, Immune Evasion, and Prevention Strategies

open access: yesReviews in Aquaculture, Volume 17, Issue 3, June 2025.
ABSTRACT Megalocytivirus, a large double‐stranded DNA virus belonging to the Iridoviridae family, has infected over 100 species of fish, leading to significant economic losses in the aquaculture, food, and ornamental fish industries. These viruses exhibit icosahedral symmetry and have diameters ranging from 120 to 200 nm.
Changjun Guo   +4 more
wiley   +1 more source

Length‒Weight and Length‒Length Relationships of Freshwater Fish Species Caught by Professional Fishermen in the Itaipu Reservoir, Brazil

open access: yesJournal of Applied Ichthyology, Volume 2025, Issue 1, 2025.
Length‒weight relationships (LWRs) and length‒length relationships (LLRs) were estimated for 63 and 58 freshwater fish species, respectively, captured in the Itaipu Reservoir, Paraná River Basin, Paraná State, Brazil. Sampling was carried out from March 1987 to July 2024 at 63 professional fishing sites within the reservoir’s area of influence ...
Éder André Gubiani   +7 more
wiley   +1 more source

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