Results 81 to 90 of about 6,914 (213)
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 +6 more
wiley +1 more source
CLOFFAR - update 3 - supplement to Checklist of the Freshwater Fishes of Argentina [PDF]
, 2017 In May 2016 we have published the second update to CLOFFAR and in these few months a total of 22 changes have summed up. The total number of fishes known from the freshwaters of Argentina has increased to 538, caused by one new Hoplias and 13 first ...
Koerber, Stefan +2 more
core
El uso de la fauna por constructores de concheros en la prehistoria de la Bahía Babitonga, Costa Norte de Santa Catarina, Brasil [PDF]
, 2016 The study of faunal remains from archaeological sites is based on qualitative and quantitative data that contribute to our understanding of the consumption of animal protein, environment, and lifestyle often goes beyond understanding daily activities ...
Rocha Bandeira, Dione da
core +2 more sources
Indução de tripoidia em Rhamdia quelen (Pisces, Pimelodidae)
Boletim do Instituto de Pesca, 2018 A técnica de indução de triploidia em Rhamdia quelen foi padronizada mediante aplicação de choques térmicos quentes de diferentes durações e em diferentes momentos pós-fecundação.
Pedro Vozzi +2 more
doaj
Occurrence of natural triploidy in Rhamdia quelen (Siluriformes, Heptapteridae)
Genetics and Molecular Research, 2010 Five specimens of Rhamdia quelen collected from the Lindóia Stream, PR, Brazil, were cytogenetically analyzed. The diploid chromosome number found was 58, including 30 metacentric, 16 submetacentric, 10 subtelocentric, and 2 acrocentric chromosomes. Supernumerary or B chromosomes, frequently observed in this fish group, were not detected.
J R, Tsuda +3 more
openaire +2 more sources
Anestesia e toxicidade aguda do eugenol aplicado em juvenis de jundiá, Rhamdia quelen [PDF]
, 2014 TCC (graduação) - Universidade Federal de Santa Catarina. Centro de Ciências Agrárias. Curso de Engenharia de Aquicultura.Durante o período de estágio foram realizados três experimentos envolvendo o agente anestésico eugenol, que foram desenvolvidos no ...
Pallamin, Rafael Tanganelli
core
Neotropical IchthyologyThe use and validation of fish health monitoring tools have become increasingly evident due to aquaculture expansion. This study investigated the hematology and blood morphometrics of Piaractus mesopotamicus, Brycon orbignyanus, Oreochromis niloticus and
Genoefa Amália Dal'Bó +7 more
doaj +1 more source
Memorias do Instituto Oswaldo Cruz, 1995 A new species of Hysterothylacium is described and figured. The nematodes were collected from the intestine of a neotropical catfish, Rhamdia sapo, collected from its southernmost locality (Napostá stream and Sauce Grande river, Buenos Aires Province ...
Sandra M. Brizzola, Ruben D. Tanzola
doaj +1 more source
Environmental DNA, Volume 7, Issue 4, July–August 2025.Using eDNA metabarcoding, we assessed fish diversity in isolated sinkholes in southern Brazil, uncovering signs of local extinction and species persistence. This approach offers a non‐invasive tool for biodiversity assessment and informs conservation efforts in unique karst environments.
Luz E. De la Ossa‐Guerra +5 more
wiley +1 more source
Neotropical Ichthyology, 2018 This study investigated the anesthetic effect of the essential oils (EOs) from the peel of Citrus x aurantium (EOCA) and Citrus x latifolia (EOCL) on silver catfish Rhamdia quelen.
Jane Mello Lopes +7 more
doaj +1 more source