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GROWTH AND CHANGES IN BIOCHEMICAL COMPOSITION DURING LARVAL DEVELOPMENT OF THE STONE CRAB, MENIPPE ADINA WILLIAMS AND FELDER, 1986
Citation:
Nates, S. F. AND C L. McKenney Jr. GROWTH AND CHANGES IN BIOCHEMICAL COMPOSITION DURING LARVAL DEVELOPMENT OF THE STONE CRAB, MENIPPE ADINA WILLIAMS AND FELDER, 1986. Presented at Annual Meeting of Society for Integrative & Comparative Biology, Atlanta, GA, January 4-8, 2000.
Description:
Larval development in Menippe adina was associated with changes in weight and biochemical composition. Larvae of the stone crab, M. adina, were mass-reared under laboratory conditions (28|C; 20o/ooS) from hatching to the megalopal stage. Growth in M. adina is exponential throughout the zoeal stages (y=6.71e 0.6509x, R2=0.99). Dry weight increased by 16-fold from ZI to ZV, and by day 28, the average weight for megalops is 272.5|48.6 |g. Iatroscan lipid class analysis revealed that polar lipids (>64%) and sterol esters (>20%) were the major lipid classes in larvae at every stage. Free fatty acids and diacylglycerols were present in small amounts. Overall, the triacylglycerols represented, on average, 8% of all neutral lipids. The total lipids of the zoeae and megalops contained palmitic (16:0), stearic (18:0), oleic (18:1w9) and eicosapentaenoic (20:5w3) acids as the major fatty acids, Proximate biochemical composition revealed conspicuous variations during metamorphosis that appear cyclic in nature.