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Development of the World Fuel Ethanol Industry AgEcon
Wang, Suya.
This paper summarizes the developmental courses of fuel ethanol in the world. Then, it analyzes the existing problems and developmental prospects of fuel ethanol.
Tipo: Thesis or Dissertation Palavras-chave: Energy crisis; Environmental pressure; Renewable energy; Fuel ethanol; Environmental Economics and Policy; International Development; Resource /Energy Economics and Policy.
Ano: 2009 URL: http://purl.umn.edu/53522
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Ecological separation by ecomorphology and swimming performance between two congeneric fish species Rev. Bras. Zool.
Souza,Rafael C. R.; Pompeu,Paulo S..
ABSTRACT The high diversity of freshwater fish species reflects a great morphological plasticity. Understanding the relationship between swimming capacity, morphology and habitat use may be important to predict the chances of finding a species at an anthropized environment. The swimming capacity and morphological aspects of two sympatric species of Characidium, and for which spatial segregation in different hydraulic habitats is known, were compared in this study. Twenty-one individuals of Characidium fasciatum Reinhardt, 1867 and 23 individuals of Characidium cf. zebra Eigenmann, 1909 were captured and used for the evaluation of the swimming capacity and ecomorphological attributes. The swimming capacity of each species was obtained by measuring critical...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Characidium; Environmental pressure; Habitat use; Intraspecific differences; Morphology.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702020000100322
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Environmentally Driven Color Variation in the Pearl Oyster Pinctada margaritifera var. cumingii (Linnaeus, 1758) Is Associated With Differential Methylation of CpGs in Pigment- and Biomineralization-Related Genes ArchiMer
Stenger, Pierre-louis; Ky, Chin-long; Reisser, Celine; Cosseau, Céline; Grunau, Christoph; Mege, Mickael; Planes, Serge; Vidal-dupiol, Jeremie.
Today, it is common knowledge that environmental factors can change the color of many animals. Studies have shown that the molecular mechanisms underlying such modifications could involve epigenetic factors. Since 2013, the pearl oyster Pinctada margaritifera var. cumingii has become a biological model for questions on color expression and variation in Mollusca. A previous study reported color plasticity in response to water depth variation, specifically a general darkening of the nacre color at greater depth. However, the molecular mechanisms behind this plasticity are still unknown. In this paper, we investigate the possible implication of epigenetic factors controlling shell color variation through a depth variation experiment associated with a DNA...
Tipo: Text Palavras-chave: Pearl oyster; Environmental pressure; Depth; Color change; Pigmentation; DNA methylation; Methylome characterization.
Ano: 2021 URL: https://archimer.ifremer.fr/doc/00685/79667/82436.pdf
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