Research Article

Effects of Delayed Metamorphosis on Larval Survival, Metamorphosis, and Juvenile Performance of Four Closely Related Species of Tropical Sea Urchins (Genus Echinometra)

Figure 5

Effects of delayed metamorphosis on 1-month-old juvenile growth (spine length in μm) of Echinometra sp. A (Ea), E. mathaei (Em), Echinometra sp. C (Ec), and E. oblonga (Eo). Larvae attained metamorphic competence within 24 days after fertilization were on month 0. The juveniles produced from the metamorphosis experiments were continued to rear on coralline algae for a period of 1 month. Each value represents the mean ± SD. A total of 15 juveniles were measured for spine length from each species with 5 spines per individual for each delayed period. Results of one-way ANOVA ( value and value) are presented above each set of bars. Columns with different letters represent means that are significantly different (Tukey’s test, ).
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