当前的研究重点是对拟无齿鮨鱼进行全面的库存评估，以评估其库存状态、饲养习性、必需微量元素含量以及人体暴露于重金属的风险。从孟加拉国的Bukvora Baor共采用723个样本来估算总体长度（TL）和体重（W），分别为5.5至14.5厘米和1.62-26.45克。与723个样本的平均长度10厘米和接近渐近长度的年增长率0.70相比，该物种的估计无限长度（L ∞）为15.38。获得的生长性能指数（φ）为2.2，表明该物种不适合用于水产养殖。在平均年水面温度为28℃下，自然死亡率为1.71yr-1，反映了Bukvora环湖（Baor）的良好生态适宜性。估计的当前开发比率（0.24）反映了低开发状态，总瞬时死亡率（2.25年-1）和捕捞死亡率（0.55年-1）。这一物种的招募模式在全年范围内观察到，主峰期为4月至5月。基于长度结构的虚拟种群分析（VPA）获得的总体稳态生物量（3.91公吨）和渔获可持续利用量（4.40公吨）表明该物种的可持续生产。获得的粗略组成值（%蛋白质、脂肪、湿度、灰分）在全年不同季节中未显示出显著变化。月度的GaSI测量结果显示了显著的变化（p < 0.05）。必需微量元素的值（Na和Ca）分别记录为每100克鱼肉中的9.18毫克和245.19毫克。所有检测到的重金属的目标危害商数和癌症风险均远低于美国环境保护局的建议水平。因此，这个湖潭目标鱼种是安全的，没有人体健康风险。因此，本研究的结果对于在Baor生态系统中进行G. chapra的具体管理非常有价值。© 2023作者。

The current study is focused on a comprehensive stock assessment of Gudusia chapra to assess the stock status along with feeding habits, essential minerals content and risk to human health from exposure to heavy metals. A total of 723 specimens from the Bukvora Baor, Bangladesh were used to estimate the total body length (TL) and body weight (W) which ranged from 5.5 to 14.5 cm and 1.62-26.45 g, respectively. The estimated asymptotic length (L ∞) of this species (15.38) was in comparison with average length at 10 cm from 723 specimens along with the rate of 0.70 yr-1 for approaching to asymptotic length. The obtained growth performance index (φ) 2.2 indicates that this species is not economically feasible to bring under aquaculture. At an average annual water surface temperature of 28 °C, natural mortality, 1.71yr-1 indicating good ecological suitability of Bukvora oxbow lake (Baor). The estimated current exploitation ratio (0.24) reflected under-exploitation status with total instantaneous mortality (2.25 years-1) and fishing mortality (0.55 years-1). The recruitment pattern of this species was observed across the year, with main peak occurring during the period of April to May. The estimated total steady state biomass (3.91 metric ton) and MSY (4.40 metric ton) based on length-structured virtual population analysis (VPA) length-structured virtual population analysis (VPA) through FiSAT II schedule indicating the sustainable production of this species. The obtained values of proximate compositions (% of protein, fat, Moisture, ash) showed no significant variations during different seasons throughout the year. The monthly measurements of GaSI showed significant alterations (p < 0.05). The value of essential minerals (Na and Ca) was recorded 9.18 mg and 245.19 mg per 100 g of fish flesh, respectively. Target hazard quotient and Cancer risk for all detected heavy metals were far below the recommended levels by United States Environmental Protection Agency. Therefore, the target fish species from oxbow lake is safe and have no human health risk. Therefore, the outcomes of this research would be very worthwhile in carrying out specific management for G. chapra in Baor ecosystems.© 2023 The Authors.