Length weight relationships (LWRs) and form factor of 8 marine fishes were assessed from the Bay of Bengal, Bangladesh through sampling from November 2019 to October 2020 with gill net (mesh size, 3-6 cm). Body weight was weighed with 0.01 g precision and total length was measured nearest to 0.1 cm. Our study provided LWR of Scomberomorus koreanus for the first time. LWR of Drepane punctata, D. longimana, Scatophagus argus and Ephippus orbis were documented for the first instance from the Bay of Bengal. Values of b for LWR ranged from 2.574 (Thryssa setirostris) to 3.380 (Drepane longimana) with r² ≥ 0.948 as well as form factor ranged from 0.0062 (S. koreanus) to 0.0313 (Drepane punctata). Findings of our study will be helpful for sustainable management of these eight marine fish species in the Bay of Bengal.

通过从 2019 年 11 月至 2020 年 10 月使用刺网（网目尺寸，3-6 厘米）进行采样，评估了孟加拉国孟加拉湾 8 种海洋鱼类的长度重量关系 (LWR) 和形状因子。以 0.01 克的精度称量体重，测量总长度最接近 0.1 厘米。我们的研究首次提供了Scomberomorus koreanus 的LWR 。Drepane punctata、D. longimana、Scatophagus argus和Ephippus orbis 的LWR在孟加拉湾首次被记录。LWR的b值范围从 2.574 ( Thryssa setirostris ) 到 3.380 ( Drepane longimana ) r ²≥ 0.948 以及形状因子的范围从 0.0062 ( S. koreanus ) 到 0.0313 ( Drepane punctata )。我们的研究结果将有助于孟加拉湾这八种海洋鱼类的可持续管理。