Abstract
The metabolic enzyme activities were determined in larvae of red drum, Sciaenops ocellatus, and lane snapper, Lutjanus synagris, to determine the effect of temperature and nutrition on metabolic enzyme activities and to evaluate if metabolic enzyme activities are useful in assessing the feeding condition of larval fish. During experiments conducted during the spring of 1990, lactate dehydrogenase (LDH) activities in both red drum and lane snapper were approximately an order of magnitude lower than values typical for adult fish; LDH and citrate synthase (CS) activities increased during early developmental stages, but nutritional effects were apparent. Clear differences (up to 4-fold) between well-fed and starving fish were evident in both LDH and CS activity in red drum. Differences between well-fed and poorly fed larvae were evident until 9 d after hatching. Lane snapper larvae reared at a 25°C had significantly lower LDH activities than larvae reared at 28°C.
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Communicated by J. M. Lawrence, Tampa
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Clarke, M.E., Calvi, C., Domeier, M. et al. Effects of nutrition and temperature on metabolic enzyme activities in larval and juvenile red drum, Sciaenops ocellatus, and lane snapper, Lutjanus synagris . Marine Biology 112, 31–36 (1992). https://doi.org/10.1007/BF00349724
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DOI: https://doi.org/10.1007/BF00349724