Results 71 to 80 of about 478 (166)

Relación longitud-peso y factor de condición de los peces nativos del río San Pedro (cuenca del río Valdivia, Chile) Weight-length relationships and condition factor of native fish from San Pedro River (Valdivia River basin, Chile)

open access: yesGayana, 2012
La relación longitud-peso y el factor de condición (K) son descriptores de gran interés en la biología de poblaciones de peces, ya que aportan información fundamental sobre estrategias de crecimiento, estado nutricional y reproducción.
Roberto Cifuentes   +6 more
doaj  

Galaxias maculatus (Jenyns) en Chile, con especial referencia a su reproducción

open access: yesBoletín Museo Nacional de Historia Natural, 1970
Galaxias maculatus (Jenyns) es una especie de agua dulce cuya reproducción está relacionada con la dinámica de los estuarios y con la migración de los estadios juveniles y adultos. Este mecanismo tiene especial importancia por la interesante distribución geográfica de la familia Galaxidae, circunscrita a los extremos del hemisferio sur: Australia ...
openaire   +1 more source

Stages in the normal development of Galaxias maculatus attenuatus (Jenyns) [PDF]

open access: yesNew Zealand Journal of Marine and Freshwater Research, 1968
Summary The sequence of embryonic development is described for Galaxias maculatus attenuatus (Jenyns). Standard stages are described and the rate of development at two different constant temperatures is given. Field results are compared with these data. It appears that G. m.
openaire   +1 more source

Feeding ω-3 PUFA enriched rotifers to Galaxias maculatus (Jenyns, 1842) larvae reared at different salinity conditions: effects on growth parameters, survival and fatty acids profile

open access: yesLatin American Journal of Aquatic Research, 2013
Despite the well known importance of ω-3 polyunsaturated fatty acids (PUFA) in marine and freshwater fish larvae, there are few studies on how essential fatty acid requirements and composition on whole body can be altered by changes in water salinity ...
Patricio Dantagnan   +3 more
doaj  

Using biotracer techniques to uncover consumer diets: A comparison of stable isotopes, fatty acids, and amino acids

open access: yesEcosphere
Biotracers are commonly used in food‐web studies to estimate consumer diets. Increasingly, multiple biotracer types are combined to provide more nuanced pictures of consumer resource use, unravel more complex diet mixtures, and improve the discriminatory
Patrick J. Pickett   +6 more
doaj   +1 more source

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