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Cytogenetics of Neotropical fishes: Patterns, advances and prospects after five decades of research [PDF]

open access: yesGenetics and Molecular Biology
This review synthesizes the most significant advances and innovations in the cytogenetic study of Neotropical fishes, with emphasis on recurrent chromosomal patterns, evolutionary mechanisms, and the integration of modern genomic tools.
Mauro Nirchio, Claudio Oliveira
doaj   +3 more sources

Near complete 12S DNA reference library for the freshwater fish of French Guiana, northern Amazonian region [PDF]

open access: yesScientific Data
The limited availability of DNA reference libraries is a key limitation to developing biodiversity inventories using environmental DNA techniques.
Sébastien Brosse   +8 more
doaj   +2 more sources

The Amazon sailfin catfish Pterygoplichthys disjunctivus x pardalis (Siluriformes: Loricariidae) in Panamá

open access: yesCuadernos de investigación UNED, 2022
Introduction: Despite having a rich and diverse native freshwater fish fauna, exotic species have been introduced to Panama since the 20th century. Objective: To report its presence in the fresh waters of Panama of a newly recorded exotic fish. Methods:
Rigoberto González Gutiérrez
doaj   +1 more source

Human impacts and the loss of Neotropical freshwater fish diversity

open access: yesNeotropical Ichthyology, 2021
Neotropical Ichthyology promotes the Special Issue (SI) “Human impacts and the loss of Neotropical freshwater fish diversity” with the purpose of publishing relevant scientific articles on the current biodiversity crisis and the loss of Neotropical ...
Fernando M. Pelicice   +7 more
doaj   +1 more source

Establishing a model fish for the Neotropical region: The case of the yellowtail tetra Astyanax altiparanae in advanced biotechnology

open access: yesFrontiers in Genetics, 2022
The use of model organisms is important for basic and applied sciences. Several laboratory species of fishes are used to develop advanced technologies, such as the zebrafish (Danio rerio), the medaka (Oryzias latipes), and loach species (Misgurnus spp.).
George Shigueki Yasui   +22 more
doaj   +1 more source

Fish die-off in river and reservoir: A review on anoxia and gas supersaturation

open access: yesNeotropical Ichthyology, 2021
Albeit massive fish mortality has an extraordinary visual impact and is certainly a fatality, we still have rudimentary understanding on how addressing this problem in the Neotropical region. The processes that lead to fish die-off events are complex and
Angelo Antonio Agostinho   +5 more
doaj   +1 more source

Phagocytotic activity and gene expression of leukocytes isolated from Astyanax lacustris

open access: yesBrazilian Journal of Biology, 2023
The constant intensification of aquaculture has considerable increased the stress levels of farmed fish and, consequently, the number and intensity of diseases outbreaks. Thus, studies on fish immune response, especially regarding the interaction of fish
N. Levy-Pereira   +9 more
doaj   +1 more source

Genomic Resources for Salminus brasiliensis

open access: yesFrontiers in Genetics, 2022
The Neotropical region bears the most diverse freshwater fish fauna on the planet and is the stage for dramatic conservation struggles. Initiatives aiming for conservation of a single emblematic fish, a flagship species, to which different onlookers ...
Raissa Cristina Dias Graciano   +4 more
doaj   +1 more source

Impact of a large dam on reproduction of a non-migratory teleost species, Acestrorhynchus lacustris (Characiformes: Acestrorhynchidae) [PDF]

open access: yesBrazilian Journal of Biology, 2021
The release of water from the reservoir hypolimnion, lower concentration of oxygen and the anthropogenic regulation of the river flow, could affect the reproduction of fish, especially migratory species.
R. Z. Gomes   +5 more
doaj   +1 more source

Fish Viscera Silage: Production, Characterization, and Digestibility of Nutrients and Energy for Tambaqui Juveniles

open access: yesFishes, 2023
Fish viscera can be an important source of protein and energy for aquafeed, and its use contributes to circular aquaculture. The aim of this study was to produce acid and fermented silage from fish viscera to determine their nutritional value and the ...
Thiago Macedo Santana   +6 more
doaj   +1 more source

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