Comparison of morphology between two kinds of hybrid groupers and their parents

In order to find the morphological differences between the two kinds of hybrid groupers and their parents,Hybrid 1(Epinephelus coioides♀ ×Epinephelus lanceolatus♂)and Hybrid 2(Epinephelus fuscogutatus♀ ×Epinephelus lanceolatus♂),we measured their body and analyzed meristic data and metric characters by using the method of statistics,including ANOVA analysis and three types of multivariation analyses.The results showed that the edge of inclined belt on Hybrid1's body was clear and coherent,and there were large annular plaques on Hybrid 2,all those were different from their parents.Furthermore,the analysis based on the morphology framework showed the shape of front dorsal fin and trunk of Hybrid 1was inclined to its female parent,however,Hybrid's front dorsal fin shape was also similar to its famale parent while its trunk shape resembled its male parent,which proved that it was a hybrid of two forms.Comprehensive statistical analysis,such as cluster analysis,discrimination analysis and principal component analysis,indicated that both kinds of hybrids resembled their female parents in morphological characteristics.