This research work affirms the morphometric characters and meristic counts of Channa punctata (Bloch, 1793) in a wetland ecosystem (Gajner Beel) from the northwestern Bangladesh. A sum of 307 specimens of C. punctata were sampled intermittently from the Gajner Beel during July 2017 to December 2018, using different established fishing gears (cast net, gill net and square lift net with mesh size ranges: 1.50-2.50 cm, 1.50-2.00 cm, & ~2.00 cm, respectively). Fin rays were counted by a magnifying glass. Seven diverse morphometric lengths were assessed and BW (body weight) was weighted for each specimen. The fin formula was: dorsal, D. 30-32; pectoral, P₁. 15-17; pelvic, P₂.5; anal, A. 19-21; and caudal, C. (ii -iv/12-14). Minimum and maximum sizes were 5.80 and 23.00 cm in total length (TL), whereas BWs were1.96 and 126.90 g, respectively. All length-weight relationships (LWRs) were greatly significant (p < 0.001) with r² ≥ 0.986. Based on r² value, BW = 0.0112*(TL)^2.98 was the most appropriate model among seven equations. Besides, based on r² values, length-length relationships (LLRs) by TL vs. SL was the finest model among six equations. These findings will help for species identification and further stock/ biomass estimation of C. punctata in the Gajner Beel or connected ecosystems.

中文翻译：

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湿地生态系统（孟加拉国西北部）中斑斑点状Channa punctata（Bloch，1793）的形态计量学和多重特征

这项研究工作确认了孟加拉西北部湿地生态系统（Gajner Beel）中Channa punctata（Bloch，1793年）的形态特征和数量统计。的307个样本的总和C.点状是从Gajner间歇取样Beel 2017年7月期间2018十二月，使用不同的建立渔具（铸网，刺网和方形电梯网目尺寸范围：1.50-2.50厘米，1.50-分别为2.00厘米和约2.00厘米）。鳍片用放大镜计数。评估了七个不同的形态学长度，并对每个样本的BW（体重）进行了加权。鳍式为：背，D。30-32；胸，P ₁。15-17; 骨盆，P ₂.5; 肛门，A。19-21；和尾角（ii -iv / 12-14）。最小和最大尺寸为全长（TL）5.80和23.00 cm，而BW分别为1.96 g和126.90 g。所有长度重量关系（轻水堆）均大大显著（p与<0.001）- [R ² ≥0.986。基于r ²值，BW = 0.0112 *（TL）^2.98是七个方程中最合适的模型。此外，基于r ²值，TL与SL的长度-长度关系（LLR）是六个方程式中最好的模型。这些发现将有助于Gajner Beel中点状梭菌的种类鉴定和进一步的种群/生物量估计。 或相连的生态系统。