Results 51 to 60 of about 3,364 (181)

Bony fish genomes: Status and gaps

open access: yesJournal of Fish Biology, EarlyView.
Abstract Bony fish constitute an exceptionally species‐rich group of aquatic vertebrates, comprising more than 95% of all living fish. The adaptive processes on the diversity of environments they inhabit make them a highly diverse group from taxonomic, morphological and evolutionary standpoints.
Noelia Pérez‐Pereira   +3 more
wiley   +1 more source

Aspectos biológicos-pesqueros de los bagres paletón (Sorubim sp.), malarmo (Platysilurus malarmo) y doncella (Ageneiosus sp.) desembarcados en Puerto Concha, Municipio Colón, Estado Zulia, Venezuela

open access: yesRevista Científica, 2010
Los bagres paletón (Sorubim sp.), malarmo (Platysilurus malarmo) y doncella (Ageneiosus sp.) soportan una importante pesquería artesanal en el sur del Lago de Maracaibo, Venezuela, representando alrededor del 30% de las capturas ...
Ramón Eduardo Parra Urdaneta   +1 more
doaj  

Cytogenetic analyses of two endemic fish species from the São Francisco River basin: Conorhynchus conirostris and Lophiosilurus alexandri (Siluriformes)

open access: yesGenetics and Molecular Biology, 2008
Two Siluriformes species endemic to the São Francisco River basin were characterized by conventional and differential cytogenetic analyses involving C-banding, Ag-nucleolar organizer region (NOR) and chromomycin A3 (CMA3) staining, and FISH (fluorescent ...
Marilza Barbosa de Almeida Marques   +3 more
doaj   +1 more source

Ossification of the cranium of Inpaichthys kerri (Characiformes: Acestrorhamphidae) with discussion of paedomorphic traits in the genus

open access: yesJournal of Anatomy, EarlyView.
In this study, we present a detailed description of the cranial development of Inpaichthys kerri (Characiformes: Acestrorhamphidae), highlighting important topics such as pedomorphic characters and their relationship with ontogeny and phylogeny, as well as ossification sequences unique to the species. Abstract The study of development provides valuable
Yasmim De Santana Santos   +1 more
wiley   +1 more source

Callichthyidae (Ostariophysi: Siluriformes) dissection protocol v1 [PDF]

open access: yes, 2018
This protocol shows how to dissect callichthyid fishes without losing importante anatomical information about the relative position and shape of internal organs.
Karina Carvalho F. Ferreira   +1 more
openaire   +1 more source

Composición de especies y diversidad de peces en tres cuerpos de agua en la cuenca alta del río Itaya

open access: yesCiencia Amazónica (Iquitos), 2013
En el presente trabajo se describe sobre la diversidad en tres cuerpos de agua de la cuenca alta del río Itaya, concesión de conservación de la universidad científica del Perú, en una evaluación rápida en los meses de junio y julio del 2012.
Javier del Águila Chávez   +3 more
doaj   +3 more sources

Pharmacokinetics, Optimal Dosages, and Withdrawal Time of Florfenicol in Cobia (Rachycentron canadum) After Oral Administration via Medicated Feed

open access: yesJournal of Veterinary Pharmacology and Therapeutics, EarlyView.
ABSTRACT Antimicrobial drugs are commonly used for the treatment of bacterial diseases in cobia (Rachycentron canadum), but information regarding the rationale of their therapeutic use, such as pharmacokinetics (PK), optimal dosages, and withdrawal time (WDT) in this species is very rare.
Jou‐An Shih   +5 more
wiley   +1 more source

Variação nictemeral na assembleia de peixes de um trecho de rio na Amazônia ocidental brasileira

open access: yesBiotemas, 2015
Padrões de atividade circadiana estão entre os ritmos biológicos mais evidentes e detectáveis nos animais. Este artigo tem por objetivo verificar os efeitos da variação nictemeral na abundância, biomassa e composição da ictiofauna no médio rio Machado ...
Paulo de Tarso Fonseca Albuquerque   +5 more
doaj   +1 more source

Reliable Inference of Phylogenomic Relationship via Assembly‐Based Strategy Accommodating Raw Reads and Proteins

open access: yesMolecular Ecology Resources, Volume 26, Issue 3, April 2026.
ABSTRACT Phylogenomics is a transformative approach in systematics, conservation biology, and biomedical research, enabling the inference of evolutionary relationships by leveraging hundreds to thousands of genes from genomic or transcriptomic data. However, acquiring high‐quality genomes and transcriptomes necessitates samples with intact DNA and RNA,
Yunlong Li   +5 more
wiley   +1 more source

Cytogenetic Analyses of Pseudopimelodus mangurus (Teleostei: Siluriformes: Pseudopimelodidae)

open access: yesCYTOLOGIA, 2004
The cytogenetic analyses showed that Pseudopimelodus mangurus has a diploid number of 2n=54 chromosomes (6M, 26SM, 12ST and 10A), single Ag-NORs on the short arm of a middle-sized ST pair, identified as pair 19, and a very small amount of C-band positive segments in two chromosome pairs. The Ag-NORs are C-band positive.
Martinez, Emanuel Ricardo Monteiro   +2 more
openaire   +4 more sources

Home - About - Disclaimer - Privacy