Results 81 to 90 of about 12,829 (213)
Les Cheirodontinae (Characidae, Ostariophysi) du Paraguay
Revue suisse de zoologie., 1987 (Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire +1 more source
Multiple NORs in Bryconamericus aff. exodon (Osteichthyes, Characidae, Tetragonopterinae) [PDF]
Hereditas, 2002 Fifteen examples of Bryconamericus aff. exodon from the Três Bocas stream in the basin of the Tibagi river (Parana, Brazil) were analyzed. They presented a diploid number of 52 chromosomes. Multiple NORS were detected by silver nitrate impregnation in the telomeric region on the short or long arm of different chromosomes, showing a variation from 2 to ...
Tania Regina, Paintner-Marques +2 more
openaire +2 more sources
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
The aquatic basis of ancient civilisations: the case of Synodontis schall and the Nile Valley [PDF]
, 2000 This chapter focuses on the role of aquatic resources in the ancient economies of the Nile Valley. We suggest that these resources have been overlooked in traditional interpretations because of a reliance on wall paintings and carvings in tombs ...
Bailey, G., Luff, R.M.
core
Neotropical IchthyologyA compared study of the morphology of the alimentary tract and liver of seven selected species corresponding to the main clades of the Characidae family is presented herein.
Felipe Alonso +2 more
doaj +1 more source
Genetics and Molecular Biology, 2002 In the present study, nuclear DNA content was analyzed in 53 species of Characiformes fish from the Neotropical region. Diploid number ranged from 2n = 48 in Astyanax fasciatus, Gymnocorymbus ternetzi and Hyphessobrycon griemi to 2n = 102 in Potamorhina ...
Margarida Lima Carvalho +4 more
doaj +1 more source
Conservation Science and Practice, Volume 7, Issue 7, July 2025.This paper approaches the patterns in fish distribution across the altitudinal gradient in the Upper Paraguay River basin, from uplands to the floodplain. We compiled more than 75,000 available fish records and registered 342 fish species and your distribution along altitudinal gradient. Floodplain portion have higher species diversity than headwaters,
Adriana Maria Espinoza Fernando +11 more
wiley +1 more source
Two new Bryconamericus: B. cinarucoense n. sp. and B. singularis n. sp. (Characiformes, Characidae) from the Cinaruco River, Orinoco Basin, with keys to all Venezuelan species [PDF]
, 2008 Here we describe for the first time Bryconamericus cinarucoense n. sp. and Bryconamericus singularis n. sp., two new species of Characiformesfrom the Cinaruco River, Orinoco Basin in Venezuela. B. cinarucoense n. sp.
Román-Valencia, C. +2 more
core
A phylogenetic analysis of Brycon and Henochilus (Characiformes, Characidae, Bryconinae) based on the mitochondrial gene 16S rRNA [PDF]
, 2008 The genus Brycon, the largest subunit of the Bryconinae, has 42 valid species distributed from southern Mexico to the La Plata River in Argentina. Henochilus is a monotypic genus, comprising a single species (H.
HILSDORF, Silva +3 more
core +2 more sources
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 +8 more
wiley +1 more source