Please use this identifier to cite or link to this item: https://dspace.ctu.edu.vn/jspui/handle/123456789/4661
Title: Morphometric variation of Parapocryptes serperaster (Gobiidae) in dry and wet seasons in the Mekong Delta, Vietnam
Authors: Đinh, Minh Quang
Qin, Jian Guang
Dittmann, Sabine
Trần, Đắc Định
Keywords: Oxudercine goby
Isometric growth
Length–weight relationship
Condition factor
Issue Date: 2015
Series/Report no.: Ichthyological Research;63
Abstract: Parapocryptes serperasteris a bottom-dwelling goby species widely distributed throughout monsoonal regions in Asia. A year-round study (2013–2014) on the length–weight relationship and body shape of this goby was conducted in the Mekong Delta, Vietnam, to understand its morphometric change and growth characteristics during the dry (January–May) and wet (June–December) seasons. The sex ratio in all collected specimens was not significantly different between wet and dry seasons. The female P. serperaster weighed (7.2–54.5 g) more than the males (6.7–49.0 g), but female length (12.5–21.2 cm) was not different from males (12.5–23.0 cm). Length–weight relationships were similar between female and male P. serperaster. Male and female fish showed a similar growth pattern between wet and dry seasons and the slope of the length–weight regression was close to the standard value (b=3) for isometric growth. The body condition factor decreased as fish grew, but the seasonal impact on the condition factor depended on gender. The condition factor of maleP. serperasterwas greater than that of females in the wet season, but not significantly different between genders in the dry season. This goby shows isometric growth and provides useful information for our understanding on gobiid morphometric variation in areas with monsoonal seasonality.
URI: http://dspace.ctu.edu.vn/jspui/handle/123456789/4661
Appears in Collections:Tạp chí quốc tế

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