Results 31 to 40 of about 1,803 (189)

Survival of embryos of pejerrey Odontesthes bonariensis and Odontesthes humensis at different concentration of salinity [PDF]

open access: yesBiotemas, 2009
Embryos of Odontesthes bonariensis and Odontesthes humensis were submitted to saline concentrations of 0, 5, 10, 20 and 30g.L-1. The control of mortality was made daily between the 8th and 12th days of incubation, at the which time the embryos had ...
Sérgio Renato Noguez Piedras   +3 more
doaj  

Odontesthes incisa

open access: yes, 2014
Published as part of Litz, Thomas O. & The, Stefan Koerber Introduction, 2014, Check List of the Freshwater Fishes of Uruguay (CLOFF-UY)., pp.
Litz, Thomas O.   +1 more
openaire   +2 more sources

Sex determination in fish: Odontesthes spp. (Atherinopsidae) as experimental models [PDF]

open access: yes, 2015
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 excellent models to study sex ...
J.I. Fernandino   +10 more
core   +2 more sources

Presence of trace elements in the silverside Odontesthes argentinensis

open access: yesMarine Pollution Bulletin, 2017
The silverside Odontesthes argentinensis is an economically significant resource for commercial fisheries in South America. We evaluated the presence of trace elements in the stomach content and fish tissues (muscle and otoliths) of O. argentinensis. In addition, we assessed the presence of trace elements in its prey (zooplankton) and in seawater in a ...
Thompson, Gustavo Ariel   +1 more
openaire   +3 more sources

Alimentação de alevinos de peixe-rei (Odontesthes bonariensis) com dietas naturais e artificiais Feeding pejerrey (Odontesthes bonariensis) fingerlings with natural and artificial diets

open access: yesCiência Rural, 2004
Neste trabalho, avaliou-se a resposta de alevinos de peixe-rei a diferentes tipos de alimentação, sendo os animais distribuídos num experimento com três tratamentos e quatro repetições, completamente ao acaso.
Sérgio Renato Noguez Piedras   +1 more
doaj   +1 more source

Cephalic morphological variation in freshwater silversides Odontesthes hatcheri and Odontesthes bonariensis in Patagonia: introgression and ecological relationships

open access: yesJournal of Fish Biology, 2013
Based on geometric morphometrics and discriminant analysis, the percentage of silverside Odontesthes hatcheri and Odontesthes bonariensis individuals identified by a taxonomic key and misclassified by discriminant analysis was obtained and a negative correlation between the percentage of misclassified individuals of O.
Crichigno, Sonia Alejandra   +3 more
openaire   +3 more sources

Efeito da intensidade luminosa sobre a capacidade de predação de larvas do peixe-rei marinho Odontesthes argentinensis Effect of light intensity on prey consumption of marine pejerrey Odontesthes argentinensis larvae

open access: yesCiência Rural, 2009
Este estudo teve como objetivo determinar o efeito da intensidade luminosa sobre a capacidade de predação de larvas do peixe-rei marinho Odontesthes argentinensis.
Ricardo Vieira Rodrigues   +2 more
doaj   +1 more source

Genomic Diversity and Species Boundaries of the Chilean Silversides Fishes (Atheriniformes, Atherinopsidae)

open access: yesDiversity
Silverside fishes in Chile, abundant in marine and freshwater habitats, are classified in two genera: Odontesthes and Basilichthys. Both genera have widespread distributions across southern South America, with marine origins.
Yanina F. Briñoccoli   +4 more
doaj   +1 more source

Odontesthes mirinensis Bemvenuti 1996

open access: yes, 2014
O. mirinensis Bemvenuti, 1996 N first record Nion et al. (2002)
Litz, Thomas O.   +1 more
openaire   +2 more sources

Competitive exclusion, not predation, likely drove the decline in native fish diversity following carnivorous fish introductions to Lake Titicaca in the mid‐20th century

open access: yesJournal of Fish Biology, EarlyView.
Abstract Lake Titicaca is a continental centre for ichthyological biodiversity, with over 90% of native species being endemic. However, these species face significant threats from invasive species, particularly from invasive salmonids and invasive Argentine pejerrey.
Daniel A. Villar   +3 more
wiley   +1 more source

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