Taxonomic diversity of fish species in the off southern Zhejiang, East China Sea
This study documents the data of fish species systematically collected in the off southern Zhejiang, East China Sea, from November 2015 to August 2016, according to Nelson’s classification system and analyzed the di-versity at different taxonomic levels. The inclusion index at taxonomic level (TINCLi), taxonomic diversity (the av-erage taxonomic distinctness △+ and the variation in taxonomic distinctness ∧+) are used in this study. The results show that the fish species in the waters belonged to 18 orders, 78 families, 130 genera and 182 species. It is con-cluded that the number of species in spring (104 species) is larger than that in autumn (103 species) and winter (93 species), while the smallest number occurs in summer (88 species). Analyzed by TINCLi, the average numbers of (families, genera, species), (genera, species) and (species) per order, family and genus are (4.33、7.22、10.11), (1.67、2.33) and (1.40). The △+ and ∧+ in the off southern Zhejiang, East China Sea, are 62.9 and 77.0, respect-ively. The △+ in our study area is less than those in the high latitude areas, such as the Yellow Sea and Bohai Sea (66.4), the coastal waters off Shandong (66.1), and is greater than those in the lower latitude waters including the Nansha Islands (56.6), the Xisha Islands (60.2) and the Dongsha Islands (55.2). The results above indicate that the△+ decreases with latitude. This study analyzed taxonomic diversity of fish species in the off southern Zhejiang, East China Sea, which can provide reference for the exploitation and conservation of fish species in local waters.
taxonomic diversitythe average taxonomic distinctnessthe variation in taxonomic distinctnessinclusion in-dex at taxonomic leveloff southern Zhejiang, East China Sea