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Figure 4: Changes in HA, body water, uronic acid, amino sugar, and neutral sugar content during development of the Japanese conger eel. HA: hyaluronan, UA: uronic acid, AS: amino sugar, NS: neutral sugar. Values represent the mean $\pm$ SEM of four independent samples. Data from the analyses were compared using one-way ANOVA followed by the Tukey-Kramer test. Differences were considered significant at $P<.05$. Asterisks indicate that the value is significantly different from the levels during stage 1.