In the present study, we explored the interaction between different water types and tintinnid diversity and composition in Khanh Hoa - Binh Thuan waters during the southwest monsoon period. This study represents the first detailed account of the distribution and diversity of tintinnids from this area, especially in offshore waters and thus addresses the gap in knowledge oftintinnid taxonomy and ecology in this waters. | TAP CHI SINH HOC 2017, 39(4): 421-433 Biodiversity of Tintinnids (Tintinnida) DOI: BIODIVERSITY OF Tintinnids (Tintinnida) IN KHANH HOA - BINH THUAN WATERS Nguyen Thi Kieu1, Phan Tan Luom2,3, Nguyen Tam Vinh3, Nguyen Ngoc Lam3, Josepth P. Montoya4, Doan Nhu Hai3* 1 Da Lat University, Da Lat, Vietnam Graduate University of Science and Technology, VAST, Ha Noi, Vietnam 3 Institute of Oceanography, VAST, Nha Trang, Vietnam 4 School of Biological Sciences, Georgia Institute of Technology, Atlanta, USA 2 ABSTRACT: Tintinnidsarean important protozoan group in the aquatic food web and had been widely studied in various waters. There are about 1000 known species in the world. However, there have been very few taxonomic studies in Vietnam and therefore the number of Tintinnid taxa and their distribution are poorly known. The present study documents 65 tintinnids species belonging to 30 genera and 13 families in samples collected from Khanh Hoa - Binh Thuan waters in 2016 and 2017. There were 17 new taxa records for Vietnam protozoan fauna, raising the number of tintinnids recorded in Vietnam to 125 taxa. Tintinnid assemblages in Khanh Hoa-Binh Thuan waters shared about 17 species with Ha Long Bay, 32 species with Con Co island and 26 species with coastal waters of South Vietnam. Analysis of species diversity shows that the Shannon diversity index H' varied from to . Distribution of species numbers and diversity in the Khanh Hoa - Binh Thuan waters revealed possible combined effects of hydrographical activities (. upwelling), Mekong river influent (. salinity), and food available on tintinnid communities. Keywords: Loricate ciliate, Tintinnid, South Central, Vietnam. Citation: Nguyen Thi Kieu, Phan Tan Luom, Nguyen Tam Vinh, Nguyen Ngoc Lam, Montoya J. P., Doan Nhu Hai, 2017. Biodiversity of Tintinnids (Tintinnida) in Khanh Hoa - Binh Thuan waters. Tap chi Sinh hoc, 39(4): 421-433. DOI: .
