Bài viết Sự biến động một số thông số hình thái của Periophthalmus chrysospilos phân bố ở ven biển Đồng bằng sông Cửu Long cung cấp dẫn liệu về sự biến đổi hình thái ở cá thòi lòi chấm cam Periophthalmus chrysospilos. Nghiên cứu được khảo sát tại bốn tỉnh ven biển từ Trà Vinh đến Sóc Trăng, Bạc Liêu và Cà Mau kéo dài trong 12 tháng từ 04/2020 đến 03/2021. | VNU Journal of Science Natural Sciences and Technology Vol . No 20 1-10 Original Article The Morphological Measurement Variations of Periophthalmus chrysospilos along the Coastline in the Mekong Delta Le Trung Hieu1 Dinh Minh Quang2 Hua Van U3 Nguyen Huu Duc Ton2 1 Tran Dai Nghia High School Hung Phu Cai Rang Can Tho City Vietnam 2 Can Tho University 3 2 Street Xuan Khanh Ninh Kieu Can Tho City Vietnam 3 Nguyen Thi Minh Khai High School for the Gifted No. 1 Ho Nuoc Ngot No. 6 Ward Soc Trang City Soc Trang Vietnam Received 30 May 2021 Revised 24 July 2021 Accepted 15 August 2021 Abstract This study provided data on morphological variation in Periophthalmus chrysospilos. The study was carried out in four provinces from Tra Vinh to Soc Trang Bac Lieu and Ca Mau. Fish samples were collected by hand-catching over 12 months from April 2020 to March 2021. Analysed results of a collection of 1 031 individuals 508 females and 523 males showed that the total length TL and weight W of the female Periophthalmus chrysospilos were higher than that of the male higher in the wet season than in the dry season and gradually increased from Tra Vinh to Ca Mau. Besides the total length and weight of fish were also influenced by the interaction of season site and gender site. In addition the morphological variation of this species such as eye diameter ED eye distance DE body height BD head length HL and taxonomic ratios such as HL TL BD TL ED HL DE HL was gender seasonal fluctuations and study sites. These morphological variations and ratios were also influenced by interactions season site interactions. The findings contributed further information to fish identification and the ecological adaptation understanding of this species. Keywords Bac Lieu Ca Mau fish identification morphometric Tra Vinh Soc Trang. _ Corresponding author. Địa chỉ email dmquang@ https 2588-1140 1 2 L. T. Hieu et al. VNU Journal of Science Natural Sciences and Technology .
