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Genetic structure in remnant populations of an endangered cyprinodontid fish, Orestias ascotanensis, endemic to the Ascotán salt pan of the Altiplano
(2011)
The impact of recent habitat fragmentation on population genetic diversity and structure has often been studied, mainly related to anthropogenic causes; however its long-term effect has been much less evaluated. In this ...
Dammed river: Short- and long-term consequences for fish species inhabiting a river in a Mediterranean climate in central Chile
(Wiley, 2020)
The presence of a dam disturbs river flow, which in turn directly affects the communities and evolutionary potential of riverine species. To detect the ecological effects of a dam on genetic diversity, genetic structure, ...
Quantitative genetic basis for resistance to Caligus rogercresseyi sea lice in a breeding population of Atlantic salmon (Salmo salar)
(Elsevier, 2012)
A total of 1511 Atlantic salmon smolts representing 75 full-sib and 40 half-sib families from the Antares
S.A. breeding programwere challengedwith Caligus rogercresseyi in order to assess the quantitative genetic ...
The use of alternative breeding schemes to enhance genetic improvement in rainbow trout: II. Two-stage selection
(ELSEVIER, 2006-04-28)
The potential of selection in stages to increase genetic gain and profit in rainbow trout breeding was assessed. The theory of Cochran was utilized to predict genetic gains under alternative breeding schemes mimicking the ...
Genetic population structure and evidence of genetic homogeneity in populations of the Argentinian silverside Odontesthes bonariensis (Teleostei: Atherinopsidae) inhabiting central and northwestern Argentina
(Universidad Católica de Valparaíso, 2017)
The study of species in their native geographic ranges is key to understanding how human activity has influenced spatial fragmentation or species homogenization. The Argentinian silverside Odontesthes bonariensis, of ...
Effects of genotype x environment interaction on the estimation of genetic parameters and gains in Nile tilapia
(Springer, 2020)
Nile tilapia (Oreochromis niloticus) is the major fish species produced in Brazil, a country with a vast territory and great climate diversity. This study assessed the effects of the genotype x environment interaction on ...
Genetic parameters for Piscirickettsia salmonis resistance, sea lice (Caligus rogercresseyi) susceptibility and harvest weight in rainbow trout (Oncorhynchus mykiss)
(Elsevier B.V., 2019)
Piscirickettsiosis caused by the intracellular bacterium Piscirickettsia salmonis and caligidosis produced by the ectoparasite Caligus rogercresseyi, are important diseases which generate great economic losses in salmonid ...
Phylogeography in Galaxias maculatus (Jenyns, 1848) along Two Biogeographical Provinces in the Chilean Coast
(Public Library Science, 2015)
Major geologic and climatic changes during the Quaternary exerted a major role in shaping past and contemporary distribution of genetic diversity and structure of aquatic organisms in southern South America. In fact, the ...
Sustainability versus fishing collapse: a review of causes and welfare prescriptions
(Universidad de Chile. Departamento de Economía, 1996-06)
It is commonly held that fishing collapse is a public bad. Losses in genetic endowment and the closure of fishing industries underlie this concern. This paper discusses both the welfare functional as well as the technological ...
Quantitative genetic variation for resistance to the parasite Ichthyophthirius multifiliis in the Neotropical fish tambaqui (Colossoma macropomum)
(Elsevier, 2020)
Tambaqui (Colossoma macropomum) is the main native fish produced in continental aquaculture from South America. However, its production has been negatively affected by significant economic losses due to frequent outbreaks ...