Results 51 to 60 of about 1,276 (199)

Sustainable harvest of two large predatory catfish in the Cuiabá river basin, northern Pantanal, Brazil

open access: yesBrazilian Journal of Biology
Fishery is an important economic activity in the Pantanal. Among the region’s species, the Pimelodidae catfish stands out as an important part of the annual catch.
JMF. Penha, LAF. Mateus
doaj   +1 more source

Karyotype variability in neotropical catfishes of the family Pimelodidae (Teleostei: Siluriformes)

open access: yesNeotropical Ichthyology, 2011
Karyotypic data are presented for four species of fish belonging to the Pimelodidae family. These species show a conserved diploid number, 2n = 56 chromosomes, with different karyotypic formulae.
Américo Moraes Neto   +6 more
doaj  

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

Photoperiod influence on the cultivation of Steindachneridion scriptum (Pisces, Pimelodidae) juvenile [PDF]

open access: yesBrazilian Archives of Biology and Technology, 2008
This study aimed to evaluate the influence of photoperiod on juvenile suruvi (Steindachneridion scriptum) in six photoperiods: 24L-0D (L= Light; D= Dark), 18L-6D, 14L-10D, 10L-14D, 6L-18D and 0L-24D. Juveniles measuring 176.8 ± 13.2mm and weighing 60.2 ± 16.0g were distributed in eighteen 150-L aquariums, stocked with 8 juveniles per aquarium.
Zaniboni-Filho, Evoy   +3 more
openaire   +4 more sources

Tropical Rainfall and eDNA Washout Impact Estimations of Amazonian Biodiversity Patterns From Environmental Samples

open access: yesEnvironmental DNA, Volume 7, Issue 3, May–June 2025.
We used eDNA to assess seasonal biodiversity patterns in a tropical river in French Guiana. Our results show that rainfall increases the detection of terrestrial species through eDNA washout and leads to species homogenization via increased eDNA transport.
Céline Condachou   +5 more
wiley   +1 more source

Cytogenetic studies on fishes of the family pimelodidae (siluroidei) [PDF]

open access: yes, 2014
Four fish species of the family Pimelodidae were analyzed. Bergiaria westermani and two different Pimelodus species have the same diploid chromosome number (2n - 56). Despite some differences in chromosome structure, these species are highly similar in karyotype and differ from Pimelodella sp., which presents a reduction in chromosome number to 2n = 46.
Dias, A. L., Foresti, F.
openaire   +1 more source

Restoring mangrove biodiversity: can restored mangroves support fish assemblages comparable to natural mangroves over time?

open access: yesRestoration Ecology, Volume 33, Issue 4, May 2025.
Despite the recent global increase in mangrove restoration efforts, our understanding of the outcomes and recovery of biodiversity and re‐establishing functionality, such as productive fish habitat, is limited due to the lack of long‐term monitoring. Here, we used a space‐for‐time approach to investigate whether restored mangroves attain similar fish ...
Mark Ram   +2 more
wiley   +1 more source

Análise filogenética de Brachyplatytoma platynemum (Siluriformes: Pimelodidae)

open access: yes, 2014
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
openaire   +2 more sources

Structural Analysis of Embryonic Development of Embryos From the Crossing of Two Species of Siluriform

open access: yesAquaculture Research, Volume 2025, Issue 1, 2025.
Based on the need for knowledge about the biology of hybrid fish specimens currently being produced by commercial fish farmers, this study aimed to study the initial ontogenesis up to the fifth day after larval hatching of the Hybrid LP produced by crossing Leiarius marmoratus (♀) and Pseudoplatystoma reticulatum (♂), thus producing important data for ...
Yasmin Santos dos Reis   +7 more
wiley   +1 more source

Clave artificial de las familias de peces del río Magdalena

open access: yesCaldasia, 1942
Patamotrygonidae / Ageneiosidae / Pimelodidae / Auchenipteridae / Bunocephalidae / Cetopsidae /  Pygidiidae / Astroblepidae / Doradidae / Loricariidae / Callichthyidae / Characidae / Erythrinidae / Cyprinodotitidae / Poeciliidae / Sciaenidae / Cichlidae /
Miles Cecil
doaj  

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