Results 61 to 70 of about 209 (130)

New records and distribution extension of Hyphessobrycon itaparicensis Lima & Costa, 2001 (Characiformes: Characidae) in coastal drainages of Sergipe state, northeastern Brazil [PDF]

Check List, 2014
The present study reports the first record of the small characid fish Hyphessobrycon itaparicensis Lima and Costa, 2001 in two coastal drainages of Sergipe State, Brazil.
Marcelo Brito, Sergio Lima, Waldir Berbel-Filho, Rodrigo Torres   +3 more
doaj   +3 more sources

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

Journal 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, Adán Fernando Mar‐Silva, Bruno F. Melo, Sonia Gabriela Hernández‐Ávila, Jesús M. López‐Vila, Gabriel S. C. Silva, Píndaro Díaz‐Jáimes   +6 more
wiley   +1 more source

A new species of Hyphessobrycon (Teleostei: Characidae) from the upper rio Tocantins drainage, with bony hooks on fins

Neotropical Ichthyology
A new species of characid, Hyphessobrycon hamatus, is described from the upper rio Tocantins, Goiás, Brazil. The new species is distinguished from all other Hyphessobrycon species by the presence of bony hooks on dorsal, anal, pelvic, and pectoral fins ...
Vinicius A. Bertaco, Luiz R. Malabarba
doaj   +1 more source

Establishing new grid‐size‐dependent attributes to rank areas of endemism for conservation priorities

Cladistics, Volume 41, Issue 5, Page 493-512, October 2025.
Abstract Delineating Areas of Endemism (AEs) is crucial for identifying priority areas for biodiversity conservation in a spatial planning framework. Endemicity Analysis in the NDM/VNDM software is one of the primary methodologies for its delineation.
Augusto Frota, Weferson Júnio da Graça
wiley   +1 more source

Vertical segregation of two species of Hyphessobrycon(Characiformes: Characidae) in the Cabiúnas coastal lagoon, southeastern Brazil

Neotropical Ichthyology
Segregation in the use of the water column by two congeneric species of Characidae, Hyphessobrycon bifasciatus and H. luetkenii, was investigated through underwater observations in the Cabiúnas coastal lagoon in northeastern Rio de Janeiro, Brazil.
Sergio M. Q. Lima, André A. Cunha, Jorge I. Sánchez-Botero, Érica P. Caramaschi   +3 more
doaj   +1 more source

The elusive scleral cartilages: Comparative anatomy and development in teleosts and avians

The Anatomical Record, Volume 308, Issue 7, Page 1838-1850, July 2025.
Abstract The sclera of all vertebrate eyes is comprised of connective tissue, with some organisms developing cartilage within this tissue. A review of the cartilages that have been described in the vertebrate sclera and their anatomical relationships is discussed together with their potential homology.
Tamara A. Franz‐Odendaal
wiley   +1 more source

Long‐Term Effects of Land Use and Cover Change and Dam Rupture on Ichthyofauna in a Neotropical Stream

International Review of Hydrobiology, Volume 110, Issue 1, Page 5-12, June 2025.
ABSTRACT This study evaluates land use and land cover (LULC) changes and their impacts on the fish community of a neotropical stream in the Sorocaba River basin, Brazil, from 2006 to 2023. The watershed experienced landscape changes over time, categorized into four periods: rural interventions, urban interventions, restorative interventions, and post ...
Nícholas de P. Nicomedes, Thiago M. R. Santos, Luís G. N. de Carvalho, Beatriz C. G. Prieto, Camila S. Bento, Larissa L. M. Silva, Flavia C. de Paiva, Natalia S. Alves, Welber S. Smith   +8 more
wiley   +1 more source

A new characid fish, Hyphessobryconhexastichos (Characiformes: Characidae) from Chapada dos Parecis, Mato Grosso, Brazil

Neotropical Ichthyology
A new characid species, Hyphessobrycon hexastichos, is described from the upper rio Tapajós, Mato Grosso, Brazil. The new species is distinguished from all other Hyphessobrycon species by the presence of black zigzag longitudinal lines between ...
Vinicius A. Bertaco, Tiago P. Carvalho
doaj   +1 more source

Life-history strategies associated to reproduction of three Hyphessobrycon species (Characidae) in lentic environments of upper Paraná River basin

Acta Limnologica Brasiliensia, 2013
AIM: Life-history strategies in fish include essential parameters related to offspring survivorship, fecundity and time of reproduction, which represent adaptive traits that enable a species to deal with spatial and temporal variability of abiotic ...
Cristina da Silva Gonçalves, Ursulla Pereira Souza, Fabio Cop Ferreira, Alexandre Peressin, Francisco Manoel de Souza Braga   +4 more
doaj   +1 more source

Effects of Dietary L‐Arginine on Distal Intestinal Health in Marine Atlantic Salmon (Salmo salar) at Elevated Temperature

Aquaculture Research, Volume 2025, Issue 1, 2025.
Farmed Atlantic salmon are increasingly being challenged by rising sea surface temperature. For salmon aquaculture in Australia, the water often exceeds the thermal tolerance limit during summer, causing reduced feeding, intestinal inflammation and increased susceptibility to disease.
Theophilus Seah, Rebecca L. Cramp, Richard Smullen, Matthew K. Jago, Andrew C. Barnes, Chloe J. English   +5 more
wiley   +1 more source