|
|
|
|
| |
|
| |
|
|
| Castro Luna, Israel. |
| En el Valle del Mezquital, Estado de Hidalgo, México, se riega con aguas de origen urbano-industrial provenientes de la ciudad de México. Estas aguas se utilizan prácticamente sin ningún tratamiento, esto conlleva a la acumulación de las sales solubles y a la sodificación paulatina de los suelos. El objetivo de este trabajo de investigación de carácter descriptivo, permitió conocer como varían las composiciones iónicas y las concentraciones electrolíticas de las aguas residuales y estimar los niveles de sodio intercambiable, además de conocer valores máximos y mínimos, con base en la Relación de Adsorción de Sodio bajo diferentes formulaciones RASor, RASaj y RAS°corr. Se determinaron los siguientes parámetros: 1. Composición iónica de las muestras de agua... |
|
Palavras-chave: Salinidad; Sodicidad; RAS; PSI; CSR; Presión osmótica; Salinity; Sodicity; SAR; ESP; RSC; Osmotic pressure; Doctorado; Hidrociencias. |
| Ano: 2011 |
URL: http://hdl.handle.net/10521/398 |
| |
|
|
| Castro Luna, Israel. |
| En el Valle del Mezquital, Estado de Hidalgo, México, se riega con aguas de origen urbano-industrial provenientes de la ciudad de México. Estas aguas se utilizan prácticamente sin ningún tratamiento, esto conlleva a la acumulación de las sales solubles y a la sodificación paulatina de los suelos. El objetivo de este trabajo de investigación de carácter descriptivo, permitió conocer como varían las composiciones iónicas y las concentraciones electrolíticas de las aguas residuales y estimar los niveles de sodio intercambiable, además de conocer valores máximos y mínimos, con base en la Relación de Adsorción de Sodio bajo diferentes formulaciones RASor, RASaj y RAS°corr. Se determinaron los siguientes parámetros: 1. Composición iónica de las muestras de agua... |
|
Palavras-chave: Salinidad; Sodicidad; RAS; PSI; CSR; Presión osmótica; Salinity; Sodicity; SAR; ESP; RSC; Osmotic pressure; Doctorado; Hidrociencias. |
| Ano: 2011 |
URL: http://hdl.handle.net/10521/398 |
| |
|
| |
|
| |
|
|
| Lemonnier, Hugues; Bernard, E; Boglio, E; Goarant, Cyrille; Cochard, Jean-claude. |
| Penaeid shrimp reared in earthen ponds are exposed to sediment, which can, in some instances, induce a stress. In seawater, the osmoregulatory capacity (hyporegulation) is a useful tool to compare the physiological condition of shrimp exposed to various stressors. By keeping some shrimp in cages at different locations of a single pond heterogeneous in terms of sediment quality, it was possible, using osmotic pressure (OP), to identify some locations where the stress was maximum and some others where it was minimum. Simultaneously, sediment samples were taken and analysed in order to evaluate some physico-chemical parameters that could be related to the stress observed in the shrimps kept in the cages. This approach allowed to show a significant positive... |
| Tipo: Text |
Palavras-chave: PH; Sediments; Stress; Osmotic pressure; Shrimp physiology. |
| Ano: 2004 |
URL: http://archimer.ifremer.fr/doc/2004/publication-1866.pdf |
| |
|
|
| Cosson, Jacky; Groison, Anne-laure; Suquet, Marc; Fauvel, Christian. |
| As in many marine fish, motility is triggered by osmotic pressure (OP) in cod and hake spermatozoa and motility ranges several minutes with a high velocity (above 50 mu m/s) period restricted to 100 s. A decrease in the flagellar beat frequency (BF) is partly responsible of this briefness. Detailed observations of the flagella during the motility period showed: 1) sea water provokes OP damages (blebs) which impair the correct wave propagation 2) waves become restricted to the proximal flagellum and tip becomes devoid of wave 3) the wave amplitude decreases. The combination of these factors drastically limits to the earliest period of motility the ability for spermatozoa to efficiently progress towards egg for fertilization. |
| Tipo: Text |
Palavras-chave: Osmotic pressure; Sperm motility; Spermatozoa; Hake; Cod. |
| Ano: 2008 |
URL: http://archimer.ifremer.fr/doc/2008/publication-6552.pdf |
| |
|
|
| Chong-robles, Jennyfers; Charmantier, Guy; Boulo, Viviane; Lizarraga-valdez, Joel; Enriquez-paredes, Luis M.; Giffard-mena, Ivone. |
| The euryhaline white shrimp Litopenaeus vannamei lives in both coastal and oceanic areas through ontogeny. Its osmoregulation pattern and variations in its tolerance to salinity are partially known from several studies under different experimental conditions (developmental stages, salinities and acclimation procedures). Although L. vannamei is recognized as one of the most euryhaline penaeid species, with adults and juveniles exhibiting an hyper-hypo-osmoregulatory pattern and being able to tolerate a wide salinity range, little is known on larval and early postlarval strategies to cope with salinity fluctuations. In order to establish their euryhalinity range and to fully understand the ontogenetic changes in L. vannamei osmoregulatory pattern, we... |
| Tipo: Text |
Palavras-chave: Osmotic pressure; Hypo-hyper osmoregulation; Osmotic stress; Survival; Crustacean; Larvae. |
| Ano: 2014 |
URL: http://archimer.ifremer.fr/doc/00169/28068/26283.pdf |
| |
|
|
|
