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Response of muscle-based biochemical condition indices to short-term variations in food availability in post-flexion reared sea bass Dicentrarchus labrax (L.) larvae

AutorCatalán, Ignacio Alberto ; Berdalet, Elisa ; Olivar, M. Pilar ; Roldán, Cristina
Palabras claveCell proliferation rates
Dicentrarchus labrax larvae
Metabolic enzymes
Fecha de publicaciónfeb-2007
EditorFisheries Society of the British Isles
CitaciónJournal of Fish Biology 70(2): 391–405 (2007)
ResumenSix condition indices based on RNA, total soluble protein and two metabolic enzymes [lactate dehydrogenase (LDH) and citrate synthase (CS)] were analysed in muscle tissue of individual larvae, post-flexion reared sea bass Dicentrarchus labrax using DNA and total soluble protein as standards for size. In addition, the effect of 2 days of food deprivation on the cell proliferation rates was assessed. The RNA:DNA best reflected short-term changes in feeding conditions. If standardized by DNA content, LDH activity was a better indicator of condition than any other index but RNA:DNA. Further, the analysis of cell proliferation rates in muscle from 26 day-old larvae proved useful in distinguishing continuously fed larvae from individuals subjected to 2 days of fast.
Descripción15 pages, 2 figures, 3 tables
Versión del editorhttp://dx.doi.org/10.1111/j.1095-8649.2007.01307.x
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