Results 51 to 60 of about 1,941 (190)

Sanidade de peixes criados no Brasil Central: doenças parasitárias e suas interações com o ambiente e hospedeiros [PDF]

open access: yes, 2013
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências Agrárias, Programa de Pós-Graduação em Aquicultura, Florianópolis, 2013.Nos último anos, o estado de Mato Grosso do Sul, Brasil, apresentou incremento considerável na produção ...
Jerônimo, Gabriela Tomas
core  

Disentangling Environmental, Spatial and Niche Influences on Fish Beta Diversity Along the Sandy Beaches of an Amazonian River

open access: yesFreshwater Biology, Volume 71, Issue 7, July 2026.
ABSTRACT Beta diversity is an important descriptor of community structuring and it plays a crucial role for understanding the patterns and processes shaping biodiversity at multiple spatial extents. We investigated the influence of local, spatial, landscape factors and niche characteristics on fish beta diversity along the Acre River in Acre, Brazil ...
Ronaldo S. Silva   +9 more
wiley   +1 more source

Treinamento alimentar de juvenis de Surubim Híbrido. [PDF]

open access: yes, 2011
TCC (graduação) - Universidade Federal de Santa Catarina, Centro de Ciências Agrárias, Curso de Engenharia de Aquicultura.O surubim híbrido (Pseudoplatystoma corruscans x P.
Maia, Cláudia Rodrighero
core  

Genetic Structure and Conservation Strategies for the Endangered Catfish Steindachneridion melanodermatum (Siluriformes, Pimelodidae) in the Iguaçu River, Brazil

open access: yesAquatic 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   +8 more
wiley   +1 more source

Karyotypes of two species of the genus Pimelodus (Siluriformes, Pimelodidae).

open access: yesFolia biologica, 2009
A cytogenetic study was conducted on two species of the genus Pimelodus that were collected from the Piquiri river, Paraná, Brazil: Pimelodus paranaensis and Pimelodus heraldoi. Both had a diploid number of 2n=56 chromosomes and a fundamental number (FN) of 104. In P.
Fernando Rodrigo, Treco   +1 more
openaire   +2 more sources

CYTOGENETIC STUDIES ON FISHES OF THE FAMILY PIMELODIDAE (SILUROIDEI)

open access: yes, 1993
Four fish species of the family Pimelodidae were analyzed. Bergiaria westermani and two different Pimelodus species have the same diploid chromosome number (2n - 56).
Dias, A. L., Foresti, F.
core   +3 more sources

Use of probiotics in the catfish Sorubim cuspicaudus larviculture

open access: yesRevista Colombiana de Biotecnología, 2023
Sorubim cuspicaudus, a migratory catfish distributed in the Magdalena, Sinú, and Catatumbo river basins, is categorized as vulnerable to extinction. Production of fingerlings in controlled environments stands as a strategic conservation approach, and ...
Edwin Herrera-Cruz   +5 more
doaj   +1 more source

The Flooding Gradient Affects Seed Dispersal by Fruit‐Eating Fishes in Amazonian Whitewater Floodplain Forests

open access: yesBiotropica, Volume 58, Issue 3, May 2026.
This research approaches the interaction between frugivorous fish and the flooded forests in the central Amazon. We evaluated the fruit consumption by fish and the seed dispersal potential along the flood gradient. We tested the hypothesis that the role of fish as seed dispersers varies between low várzea (LV) and high várzea (HV) forests.
Gilvan Costa   +6 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

Chilling sensitivity of Steindachneridion parahybae (Siluriformes: Pimelodidae) oocytes in different cryoprotectants

open access: yesVeterinary and Animal Science, 2019
The viability of post-thaw fish oocytes can be affected by different stages of the freezing process, such as cryoprotectant toxicity, cold sensitivity, freezing curves and thawing. Therefore, these steps need to be investigated for the development of a protocol.
Tais da Silva Lopes   +4 more
openaire   +4 more sources

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