Results 71 to 80 of about 2,443 (197)

Bibliografía de los peces de agua dulce de la Argentina Suplemento 1996-2002. [PDF]

, 2003
Between 1981 and 1995, we published five bibliographic lists (López et al., 1981, 1982,1987, 1989 y 1995) that included the publications referred to Argentine freshwater fishes and related general information published since Ringuelet et al. (1967).
Battistoni, Patria A., Cuello, Mariela V., López, Hugo Luis, Menni, Roberto C.   +3 more
core  

Benzocaine and clove oil as anesthetics for pejerrey (Odontesthes bonariensis) fingerlings [PDF]

Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2013
Pejerrey (Odontesthes bonariensis) is a native species from Rio Grande do Sul, Uruguay and Argentina where it is of great economic importance for artisanal fishing. One difficulty in laboratory research with pejerrey is related to its sensitivity, as it presents higher basal cortisol levels than other freshwater species.
Morato-Fernandes, J., Tavares, R.A., Rocha, C. B., Pouey, J.L.O.F., Piedras, S.R.N.   +4 more
openaire   +4 more sources

Does stress make males? An experiment on the role of glucocorticoids in anuran sex reversal

Journal of Experimental Zoology Part A: Ecological and Integrative Physiology, Volume 341, Issue 2, Page 172-181, March 1, 2024.
Abstract Environmentally sensitive sex determination may help organisms adapt to environmental change but also makes them vulnerable to anthropogenic stressors, with diverse consequences for population dynamics and evolution. The mechanisms translating environmental stimuli to sex are controversial: although several fish experiments supported the ...
Veronika Bókony, Csenge Kalina, Nikolett Ujhegyi, Zsanett Mikó, Kinga Katalin Lefler, Nóra Vili, Zoltán Gál, Caitlin R. Gabor, Orsolya Ivett Hoffmann   +8 more
wiley   +1 more source

El Zooplancton de dos lagos someros del sur de la Formación Meauco (ProvincIa de la Pampa, Argentina)

Semiárida, 2020
La Formación Meauco, región medanosa del centro de La Pampa, tiene numerosas lagunas. Si bien existe información hidrológica, el conocimiento sobre sus características limnológicas es escaso.
Santiago Echaniz, Alicia Vignatti, Javier Schlegel, Nicolás Schiel   +3 more
doaj   +1 more source

Análise comparativa entre técnicas morfométricas aplicadas a Odontesthes bonariensis (Valenciennes) e Odontesthes humensis De Buen (Osteichthyes, Atherinopsidae) [PDF]

Revista Brasileira de Zoologia, 2002
The objective of this study was to compare two different morphometric methodologies - traditional measurements and truss networks - based on two species of silversides, Odontesthes bonariensis (Valenciennes, 1835) and O. humensis De Buen, 1953, to determine which of the methods results in more reliable distinction between groups.
Bemvenuti, Marlise de Azevedo, Rodrigues, Fábio Lameiro   +1 more
openaire   +3 more sources

Risk for rural population in areas with high arsenic water content [PDF]

, 2014
El arsénico (As) es un tóxico natural presente en aguas subterráneas y superficiales. En este trabajo se estimó el riesgo por ingesta de agua subterránea con elevadas concentraciones de As para pobladores rurales bonaerenses.
Fernandez Cirelli, Alicia, Puntoriero, María Laura, Volpedo, Alejandra   +2 more
core  

Desarrollo de la sagitta en juveniles y adultos de Odontesthes argentinensis (Valenciennes, 1835) y O. bonariensis (Valenciennes, 1835) de la provincia de Buenos Aires, Argentina (Teleostei: Atheriniformes) Development of the sagitta in young and adults of Odontesthes argentinensis (Valenciennes, 1835) and Odontesthes bonariensis (Valenciennes, 1835) from Buenos Aires province, Argentina (Teleostei: Atheriniformes)

Revista Chilena de Historia Natural, 2005
Se describió el desarrollo del otolito Sagitta de juveniles y adultos de Odontesthes argentinensis procedentes de Punta Rasa (36°22' S) y Miramar (38°16' S) y de Odontesthes bonariensis de la Laguna de Chascomús (35° 36' S).
ANDREA D TOMBARI, ALEJANDRA V VOLPEDO, DINORAH D ECHEVERRÍA   +2 more
doaj