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Macroparasites of silversides (Atherinopsidae: Odontesthes) in ArgentinaMacroparásitos de pejerreyes (Atherinopsidae: Odontesthes) en Argentina
(Universidad Nacional Autónoma de México. Instituto de Biología, 2016-09)
This study presents new geographical distribution records for the macroparasites of the marine Odontesthes nigricans (Richardson, 1848) (89 wild specimens), and for the freshwater silversides Odontesthes bonariensis ...
Cephalic morphological variation in freshwater silversides, Odontesthes hatcheri and Odontesthes bonariensis in Patagonia: introgression and ecological relationships
(Wiley, 2013-08)
Formerly, Odontesthes hatcheri (Eigenmann) was present in Cuyo and Patagonia. The area was repeatedly stocked with Odontesthes bonariensis (Valenciennes) during the 1930s. In a recent survey, O. bonariensis individuals ...
Morphological comparison of wild, farmed and hybrid specimens of two South American silversides, Odontesthes bonariensis and Odontesthes hatcheri
(Wiley, 2014-11)
In this study, body shape of hybrid and presumptive introgressed South American silversides was studied. Body shape of O. bonariensis and O. hatcheri from wild populations and farmed stocks was compared to provide basic ...
Genotypic sex determination in teleosts: Insights from the testis-determining amhy gene
(Academic Press Inc Elsevier Science, 2013-10-01)
The master sex-determining genes identified so far in fishes are clearly not conserved, as evidenced by several unrelated genes reported to play critical roles in sex determination. In this study, we reviewed the molecular ...
Alterations in the intestine of Patagonian silverside (Odontesthes hatcheri) exposed to microcystin-LR: Changes in the glycosylation pattern of the intestinal wall and inhibition of multidrug resistance proteins efflux activity
(Elsevier Science, 2016-09)
Accumulation and toxicity of cyanobacterial toxins, particularly microcystin-LR (MCLR) have been extensively studied in fish and aquatic invertebrates. However, MCLR excretion mechanisms, which could reduce this toxin's ...
Sex determination in fish: Odontesthes spp. (Atherinopsidae) as experimental models
(Colégio Brasilero Reprodução Animal, 2015-03)
The sex of the offspring is the result of a unique process leading, in a binary fate, to the development of male or female characteristics. In this context, the aim of the present work is to present atherinopsid fish as ...
The effects of CO2 level and temperature on embryos and free embryos of the Patagonian pejerrey Odontesthes hatcheri (Actinopterygii, Atherinopsidae)
Climate Change includes an increase of both the concentration of atmospheric CO2 and of global temperature. Embryos (= eggs) of Odontesthes hatcheri were collected in spring–summer from the littoral of Lake Morenito (Andes ...
Accumulation and biochemical effects of microcystin-LR on the Patagonian pejerrey (Odontesthes hatcheri) fed with the toxic cyanobacteria Microcystis aeruginosa
(Springer, 2013-03)
We studied accumulation and biochemical effects of microcystin-LR (MCLR) in Odontesthes hatcheri after dietary administration of the cyanobacteria Microcystis aeruginosa (1.3 μg MCLR / g body mass,incorporated in standard ...
Comparative study of toxicity and biochemical responses induced by sublethal levels of the pesticide azinphosmethyl in two fish species from North-Patagonia, Argentina
(Elsevier Science, 2016-08)
Biochemical effects of azinphosmethyl (AZM), an organophosphate pesticide, were determined in gill, brain and muscle tissues of Odontesthes hatcheri and Jenynsia multidentata. The 96-h toxicity was first assessed, estimating ...
Displacement of native Patagonian freshwater silverside populations (Odontesthes hatcheri, Atherinopsidae) by introgressive hybridization with introduced O. bonariensis
(Springer, 2017-03)
The Patagonian silverside Odontesthes hatcheri is a native fish restricted to streams and lakes of Patagonia (Argentina and Chile). Stocking programs to enhance recreational fisheries in man-made reservoirs have introduced ...