Results 11 to 20 of about 934 (172)

Reappraisal of Rhamdia branneri Haseman, 1911 and R. voulezi Haseman, 1911 (Siluriformes: Heptapteridae) from the rio Iguaçu with notes on their morphometry and karyotype

Neotropical Ichthyology, 2016
The species Rhamdia branneri Haseman, 1911 and the subspecies Rhamdia branneri voulezi Haseman, 1911 from rio Iguaçu are currently recognized as synonyms of Rhamdia quelen (Quoy & Gaimard, 1824).
Julio Cesar Garavello, Oscar Akio Shibatta   +1 more
doaj   +4 more sources

Biologia do jundiá Rhamdia quelen (Teleostei, Pimelodidae) Biology of Rhamdia quelen (Teleostei, Pemelodidae)

Ciência Rural, 2000
O jundiá, Rhamdia quelen, é encontrado desde o centro da Argentina até o sul do México, e seu cultivo está aumentando no sul do Brasil. Portanto, o objetivo desta revisão é apresentar os dados existentes até o momento sobre a biologia dessa espécie.
Levy de Carvalho Gomes, Jaqueline Ineu Golombieski, Adriana Regina Chippari Gomes, Bernardo Baldisserotto   +3 more
doaj   +2 more sources

Lethal temperatures for Rhamdia quelen larvae (Pimelodidae) Temperaturas letais de larvas de Rhamdia quelen (Pimelodidae) [PDF]

Ciência Rural, 2000
The lower and upper lethal temperatures (LT50) of R. quelen larvae were determined. The larvae were obtained from two spawning periods with hatching temperatures of 21 and 26ºC respectively.
Adriana Regina Chippari-Gomes, Levy Carvalho Gomes, Bernardo Baldisserotto   +2 more
doaj   +5 more sources

Pyrethroid toxicity in silver catfish, Rhamdia quelen Toxicidade dos piretróides sobre Jundiás, Rhamdia quelen

Pesquisa Veterinária Brasileira, 2012
This study aimed to determine both the lethal and sublethal concentrations of Cypermethrin in young Silver Catfish (Brazilian "Jundiá", Rhamdia quelen) on aquatic environment during 96 hours, as well as to determine the Cypermethrin and Deltamethrin ...
Francisco P. Montanha, Luciana A.G. Galeb, Jorge D. Mikos, Luciana N. Ganeco, Tiago P. Pereira, Anne Tanaka, Peter G. Kirschnik, Cláudia T. Pimpão   +7 more
doaj   +1 more source

Hybridization, Maternal Inheritance, and Evolutionary Time of Divergence of Endangered Species of <i>Hypancistrus</i> (Siluriformes: Loricariidae) in the Xingu River. [PDF]

Ecol Evol
We uncover recent hybridization dynamics among three endemic Hypancistrus species from the Xingu River, including the critically endangered H. zebra. Mitogenomic analyses reveal unidirectional maternal inheritance and recent evolutionary radiation (< 0.5 Ma), explaining their retained reproductive compatibility.
Kerniske FF, Melo BF, Sousa LM, Degrandi TM, Artoni RF.   +4 more
europepmc   +2 more sources

Insights Into Spatial Orientation and Cognition in Tarantulas (Araneae: Theraphosidae) Under Natural Conditions, With Notes on Possible Ontogenetic Niche Shifts. [PDF]

Ecol Evol
Cognitive studies on spiders have largely ignored mygalomorphs, such as tarantulas, and almost completely lack field‐based observations. We present nine observations of arboreal and fossorial New World tarantulas, including a blind cave‐dwelling species, providing evidence for possible experience‐based navigation and spatial learning during foraging ...
Zamani A, West RC.
europepmc   +2 more sources

Linking rivers, mixing faunas: How artificial connectivity between the Middle and Upper Paraná River basins shapes fish diversity in a tributary of the Itaipu Reservoir, Brazil. [PDF]

J Fish Biol
Abstract This work aimed to investigate the distribution and occurrence of fish species along the São Francisco Falso Braço Norte (SFFBN) River basin, a tributary of the Middle Paraná River basin now artificially connected to the Upper Paraná ecoregion, to evaluate how such connectivity may affect the biogeographic distribution and regional composition
Kampfert LEP, Maicrovicz JC, Blanco DR, Lange D, Pavanelli CS, Brandão H.   +5 more
europepmc   +2 more sources

Rhamdia nicaraguensis

, 2023
Rhamdia nicaraguensis (Günther 1864). Nicaraguan Catfish; Barbudo, Chulín, Bagre, Barbudo de Nicaragua o Nicaraguense Vouchers: UCR 0024-009 (1), 0049-004 (2), 0188-004 (15), 0190-005 (1), 0462-003 (1), 0469-001 (1), 0538-004 (3), 0539-010 (2), 0541-001 (1), 0542-011 (2), 0543-002 (19), 0544-001 (3), 0544-003 (4), 0545-001 (2) and 1096- 001 (1); FMNH ...
Angulo, Arturo, Betts, Joel T., González-Alemán, Néstor J., Castañeda, Edgar, Berghe, Eric Van Den, Elías, Diego J., Mcmahan, Caleb D., Matamoros, Wilfredo A.   +7 more
openaire   +2 more sources

Rhamdia laticauda

, 2023
Rhamdia laticauda (Kner 1858). Filespine Chulín; Barbudo, Chulín, Bagre, Barbudo de Barbas Cortas Vouchers: (other collections) TU 202731 (1). Distribution: North America; from central Mexico to western Panama, Atlantic and Pacific drainages; (Nicaragua) Co, UI, WK, Pr, GM, KP, Es, BF, IM, To, Sa, SJ, RF, LN (Atlantic) and Ch (Pacific); 20–680 masl ...
Angulo, Arturo, Betts, Joel T., González-Alemán, Néstor J., Castañeda, Edgar, Berghe, Eric Van Den, Elías, Diego J., Mcmahan, Caleb D., Matamoros, Wilfredo A.   +7 more
openaire   +2 more sources

Rhamdia guatemalensis

, 2023
Rhamdia guatemalensis (Günther 1864) (Fig. 7F). Pale Catfish, Guatemalan Catfish; Barbudo, Chuchín, Chulín, Bagre, Filín, Julín, Barbudo de Guatemala o Guatemalteco Vouchers: UCR 0024-010 (1), 0049-006 (20), 0050-005 (2), 0184-007 (3), 0241-001 (1), 0242-008 (1), 0458- 007 (15), 0459-005 (1), 0460-003 (13), 0461-005 (7), 0539-003 (13), 0540-001 (18 ...
Angulo, Arturo, Betts, Joel T., González-Alemán, Néstor J., Castañeda, Edgar, Berghe, Eric Van Den, Elías, Diego J., Mcmahan, Caleb D., Matamoros, Wilfredo A.   +7 more
openaire   +2 more sources