This study on flathead sillago, Sillaginopsis panijus (Hamilton 1822) estimates the first morphometric relationships from the marine ecosystem, Bay of Bengal, Bangladesh using multi-linear dimensions. Additionally, meristic counts for different fin-rays were done. Alltogether, 204 specimens were captured during July 2018 to June 2019 by several gears including seine net and long lines. Morphometric measurements as well as body weight (BW) were recorded for each individual. The LWRs (length-weight relationships) were assessed as: W = a × L^b. Lateral line scales and fin rays were observed by magnifying glass. The LWRs and LLRs (length-length relationships) were found significant (p < 0.0001), with the r² values being ≥ 0.913 and ≥ 0.952, respectively. Based on r² values, LWRs by BW vs. SL and for LLRs, TL vs. FL were found as the best model. Fin formula observed for S. panijus is D₁ IX; D₂ I/24-28; P_.17-20; P_v.1/5; A I-II/24-27; C 2/16-18. Scales on lateral line were ~82-86. This investigation should be helpful for resource management in the marine ecosystems of Bangladesh and other subtropical countries.

中文翻译：

---

使用多线性尺度估计孟加拉湾（孟加拉国）的平头新罗Sillaginopsis panijus（汉密尔顿，1822年）的形态计量关系

这项扁平头新罗鱼（Sillaginopsis panijus，汉密尔顿，1822年）的研究使用多线性维估计了孟加拉国孟加拉湾海洋生态系统的第一个形态计量关系。另外，对不同的鳍片进行了统计计数。在2018年7月至2019年6月期间，通过围网和长线等多个装备共捕获了204个标本。记录每个人的形态测量值和体重（BW）。LWR（长度-重量关系）评估为：W = a×L ^b。用放大镜观察横向线的鳞片和鳍条。发现LWR和LLR（长度-长度关系）显着（p <0.0001），r ²值分别为≥0.913和≥0.952。基于r ²值，发现BW vs. SL的LWR和LLRs的TL vs. FL是最佳模型。Panijus的Fin公式为D ₁ IX；D ₂ I / 24-28；P _。17-20; P_诉1/5; A I-II / 24-27；C 2 / 16-18。侧线上的音阶为〜82-86。这项调查应有助于孟加拉国和其他亚热带国家海洋生态系统中的资源管理。