Morphometric Relationships of the Tank goby Glossogobius giuris (Hamilton, 1822) in the Gorai River using Multi-linear Dimensions

Jordan Journal of Biological Sciences

Md. Abul Kalam Azad¹ 

关键词: Tank goby;    Fin rays;    Glossogobius giuris;    Meristic;    Morphometric;   

DOI  :  

学科分类：生物科学（综合）

来源: Hashemite University, Deanship of Research and Higher Studies

【 摘 要 】

The present study illustrates the first complete and inclusive information of morphometric relationships, including Length-Weight Relationships (LWRs) and Length-Length Relationships (LLRs), using a total of 13 linear dimensions of Glossogobius giuris (Hamilton, 1822) in the Gorai River, southwestern (SW) Bangladesh. Also meristic characters, including various fin-rays of the tank goby, have been studied. In total, 229 specimens of G. giuris were collected occasionally from the Gorai River during March 2016 to February 2017 by a variety of local fishing gears (e.g., cast, gill, and square lift net). Fin rays and scales (including lateral line scale) were counted by a magnifying glass. Different morphometric lengths were measured to 0.01 cm, and whole Body Weight (BW) was estimated ± 0.01 g for each individual. The fin formula of G. giuris is: dorsal, D1. VI; D2. 8–11 (II–III/8–11); pectoral, P1. 17–22 (II–VI/14–19); pelvic, P2. 10–13 (II–III/8–10); anal, A. 7–12 (II–IV/5–8); and caudal, C. 16–21 (IV–VIII/12–13), correspondingly. In the present study, Total Length (TL) varied from 4.3 to 26.9 cm and BW ranged from 0.67 to 146.55g. All LWRs were highly significant (p < 0.0001) with r2 values ≥ 0.975. Based on r2 value, LWR by BW vs. TL, BW vs. SL and BW vs. PoAnL were good fitted models among 13 equations. The present study would be very valuable for species recognition and stock assessment of tank goby in the Gorai River, SW Bangladesh and in adjoining ecosystems.

【 授权许可】

CC BY