Date of Award
Doctor of Philosophy (PhD)
John R. McConaugha
Judith M. Capuzzo
Food quality, especially ω3 polyunsaturated fatty acids (PUFA), can affect the physiology and metabolic efficiency of larvae of the blue crab, Callinectes sapidus. These affects may correlate with success in development and juvenile recruitment.
Larvae were exposed to two diets differing quantitatively in ω3 PUFA and respiration, excretion, growth, and feeding rates were measured for each larval stage and the megalopal stage. The energy partitioned to molts and specific dynamic action was also measured. T
he ω3 PUFA enriched diet resulted in a lower respiration rate when compared to the unsupplemented diet, but there was little differences in excretion rates. ω3 PUFA may affect the efficiency of oxidative phosphorylation and ATP production, which affects the demand for oxygen. Excretion is a function of amino acid deamination and probably did not differ between diets because protein levels were held relatively constant.
Pletl, James J..
"The Growth and Bioenergetics of Callinectes sapidus Larvae and the Effects of Diet Quality on Larval Physiology"
(1992). Doctor of Philosophy (PhD), Dissertation, Ocean/Earth/Atmos Sciences, Old Dominion University, DOI: https://doi.org/10.25777/kk11-4n91