Acclimation of the sturgeon, Acipenser naccarii Bonaparte 1836 tosaltwater: Eftect of age and weight / Sanchez de Lamadrid, A.

Public ISBD Faire une suggestion d'achat Titre : Acclimation of the sturgeon, Acipenser naccarii Bonaparte 1836 tosaltwater: Eftect of age and weight Type de document : texte imprimé Auteurs : Sanchez de Lamadrid, A., Auteur Importance : pp. 337-342 Langues : Anglais (eng) Index. décimale : 639 Chasse et pêche commerciales, protection de la faune et la flore Résumé : Sturgeons of four ages/weights (1+ 2+ 3+ 4+) were subjected to a progressive change from freshwater to saline waters (33ppt) and then maintained 30 days at this salinity level. Parameters as survival rate, weight changes, body composition, osmolality and main ionic and urea concentration in blood samples were periodically monitored. As a whole, physiological parameters mainly related with blood osmolality increased as environmental salinity did, until they reached a plateau between 21st and 32nd days (salinities, 26.8ppt and 30.5ppt, respectively). An overall consideration of the results led us to conclude that age 2+ results the most favourable for these purposes. Although more in depth studies are required, this first approach resulted in a very encouraging balance. Acclimation of the sturgeon, Acipenser naccarii Bonaparte 1836 tosaltwater: Eftect of age and weight [texte imprimé] / Sanchez de Lamadrid, A., Auteur . - [s.d.] . - pp. 337-342. Langues : Anglais (eng) Index. décimale : 639 Chasse et pêche commerciales, protection de la faune et la flore Résumé : Sturgeons of four ages/weights (1+ 2+ 3+ 4+) were subjected to a progressive change from freshwater to saline waters (33ppt) and then maintained 30 days at this salinity level. Parameters as survival rate, weight changes, body composition, osmolality and main ionic and urea concentration in blood samples were periodically monitored. As a whole, physiological parameters mainly related with blood osmolality increased as environmental salinity did, until they reached a plateau between 21st and 32nd days (salinities, 26.8ppt and 30.5ppt, respectively). An overall consideration of the results led us to conclude that age 2+ results the most favourable for these purposes. Although more in depth studies are required, this first approach resulted in a very encouraging balance.

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