SURVIVAL OF ATLANTIC BLUEFIN TUNA (THUNNUS THYNNUS) LARVAE HATCHED AT DIFFERENT PH AND SALINITY CONDITIONS
MetadataShow full item record
AuthorsRuiz-Jarabo, I.; Laiz-Carrión, R. (Raúl); Ortega-García, A. (Aurelio); de-la-Gándara, F. (Fernando); Quintanilla-Hervás, J.M. (José María); Mancera, J.M.; Reglero, P. (Patricia)
In this study, we assessed the effect of pH and salinity as independent factors on larval survival (LS) of Atlantic bluefin tuna (ABFT –Thunnus thynnus) together with their Na+/K+-ATPase and V-type H+-ATPase activities. Fertilized eggs of ABFT were obtained on 25 June 2016 from a spontaneous spawning of broodstock in the farming facilities at El Gorguel (Cartagena, SE Spain) of Caladeros del Mediterráneo Company. The fertilized eggs were transferred to facilities of the Spanish Institute of Oceanography (IEO) in Mazarrón (SE Spain). In a first experiment, eggs (n = 150 per treatment, in 3 replicates) were exposed to sea water salinity (SW: 38 ppt) and four pH treatments until hatch was completed (44 hours at 23 ºC): 8.0 (control), 7.7 (near future), 7.5 (far future) and 7.3 (lower). In a second experiment eggs (n = 150 per treatment, in 3 replicates) were exposed to eleven salinities treatments and constant pH 8.0 (control) until hatch was completed (44 hours at 23 ºC): 27 , 30 , 33 , ...
The following license files are associated with this item: