| Summary: | 碩士 === 國立臺灣海洋大學 === 水產養殖學系 === 107 === The porgies (Sparidae) are important economic species in Taiwan, but its classification has long been controversial. Early research focused on the classification of traditional morphological features or the description of new species. With the advancement of science and technology, molecular biology is often used for classification. However, scholars have different opinions on the results of different molecular markers and traditional taxonomy. The phylogenetic relationship of the porgies remains to be further studied. At present, there are few studies on the classification of bone morphology, mostly for the study of growth and development, so this study will explore whether bone morphology can classify Taiwan's porgies. We have been collected 6 genera and 10 species of porgies, and 1 species of threadfin breams (Nemipteridae) for outgroup, and 28 bone morphological features of 14 skeletons are selected to make data matrix by two-state method, and similarity clustering analysis is carried out. The results showed that the morphological characteristics of the skeleton can be used as the basis for the classification of the porgies in Taiwan. However, it is difficult to describe the complex skeleton by the two-state method, and the skeletal morphology of the same genus is similar.The skeletal feature details must be described in detail to distinguish species of the same genus. This study can distinguish the three genera of Argyrops, Evynnis and Pagrus by neurocranium and vomer, that the three genera should not be combined into one genera. Among them, E. sp. 1 and E. sp. 2 are two of the Evynnis were found in the collected samples, which is different from species of the Evynnis currently recorded. It is inferred that it should be a new species. Because the sample is insufficient, it is still difficult to identify, but the specimen photo and bone description are still provided. For subsequent research use. In addition, when I read the literature,I found that the records of Parargyrops edita Tanaka were mostly misidentifications of Evynnis cardinalis (Lacepède), but many documents were cited continuously, which led to the misidentification of most document records. The P. edita needs to revisit its definition and literature. The specimen needs to be re-examined. Finally, this document provides a specimen photograph of the study samples, as well as a description of the morphological features of the bones, hand-painted and photo records, which are provided for subsequent classification studies.
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