Results 61 to 70 of about 1,060 (196)

Vitamin C Alleviates Oxidative Stress in Silver Carp (Hypophthalmichthys molitrix) Fingerlings Exposed to Toxicity Induced by Temephos and Buprofezin

open access: yesAquaculture Research, Volume 2026, Issue 1, 2026.
Context Organophosphates and chitin synthesis inhibitor pesticides pose a significant indirect threat to fish populations, necessitating effective remedial measures. Objective Supplementation with vitamin C (Vit C) in fish feed as a counteracting strategy to mitigate pesticides effect was explored in silver carp (Hypophthalmichthys molitrix ...
Sumaira Hassan   +6 more
wiley   +1 more source

New characid fish, Hyphessobrycon scutulatus, from the rio Teles Pires drainage, upper rio Tapajós system (Ostariophysi: Characiformes: Characidae)

open access: yesNeotropical Ichthyology
A new species of characid fish, Hyphessobrycon scutulatus, is described from the rio Teles Pires drainage, upper rio Tapajós system. The new species is distinct from all Hyphessobrycon species by the following characters: inner row premaxillary teeth 7 ...
Carlos Alberto Santos de Lucena
doaj   +1 more source

Pisces, Teleostei, Characiformes, Characidae, Hasemania crenuchoides Zarske and Géry, 1999, Hyphessobrycon balbus Myers, 1927 and Oligosarcus planaltinae Menezes and Géry, 1983: new records in Distrito Federal, Central Brazil [PDF]

open access: yesCheck List, 2010
Herein we present new records of three freshwater fish species (Hasemania crenuchoides, Hyphessobrycon balbus and Oligosarcus planaltinae) considered restricted to Central Brazil and previously known only for the upper Rio São Bartolomeu sub-basin.
Pedro Aquino, Thiago Couto
doaj   +3 more sources

Sistemática de Hyphessobrycon Durbin, 1908 (OSTARIOPHYSI: CHARACIDAE) [PDF]

open access: yes, 2011
Hyphessobrycon Durbin é o segundo gênero mais rico em espécies de Characidae, atualmente com 126 espécies válidas. A diagnose original do gênero, modificada por Eigenmann há quase um século, é empregada até hoje, constituindo-se em uma combinação de ...
Carvalho, Fernando Rogério de   +1 more
core  

Threshold responses of floating meadow fish communities to floodplain forest cover in the lower Amazon River

open access: yesConservation Biology, Volume 39, Issue 6, December 2025.
Abstract Forest cover is positively associated with fish biomass and fisheries yield in the Amazon River floodplain, and many species enter flooded forests to feed, spawn, or seek refuge from predation. Floating macrophyte beds, known as floating meadows, in Amazon floodplains support high fish diversity and serve as nursery habitat for many fishes of ...
Sam Grinstead   +6 more
wiley   +1 more source

A new Hyphessobrycon (Characiformes: Acestrorhamphidae) from the Central Amazon basin, Brazil [PDF]

open access: yesPapéis Avulsos de Zoologia
A new species of Hyphessobrycon is described from the region of the lower rioTapajós basin, state ofPará, and tributaries of the northern bank of the Amazon River from the rio Itapiranga basin westward to the lower rio Negro basin, states of Amazonas and
Flávio C.T. Lima   +3 more
doaj   +1 more source

Hyphessobrycon bifasciatus Ellis 1911

open access: yes, 2021
Published as part of Smith, Welber Senteio, Halcsik, Leticia, Biagioni, Renata Cassemiro, Pinheiro, Lúcio Antônio Stefani & Severino Stefani, Marta, 2021, An updated list of the ichthyofauna of Ipanema National Forest, São Paulo, Brazil, pp.
Smith, Welber Senteio   +4 more
openaire   +2 more sources

Early Biogeography of Otophysi Points to the Neotropics as the Cradle of Characiphysan Fishes

open access: yesEcology and Evolution, Volume 15, Issue 11, November 2025.
Otophysan fishes represent 70% of living freshwater fishes with 12,000 species. Relationships among their four orders were explored through a dense taxonomic sampling including 529 complete mitochondrial genomes and 4 nuclear genes for 324 species.
Achille Lenglin   +9 more
wiley   +1 more source

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

open access: yesJournal 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   +6 more
wiley   +1 more source

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

open access: yesCheck 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   +3 more
doaj   +3 more sources

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