Filtration rates (FRs) of the invasive Asian clam C. fluminea of various sizes ranging from 0.5 to 4.5 g whole-body weight were experimentally assessed under controlled laboratory conditions using two phytoplankton species of different sizes and biovolumes (Chlamydomonas reinhardtii and Pseudokirchneriella subcapitata) as food. Overall, the FRs ranged from 0 to 347 mL g⁻¹ h⁻¹ (median value: 52 mL g⁻¹ h⁻¹). We found no statistical difference (p > 0.05) between the two phytoplankton species used, nor did we find a significant relationship between individual FRs (mL individual⁻¹ h⁻¹) and wet weight (WW) or shell length (SL). However, we did find a significant negative relationship between FRs (mL g⁻¹ h⁻¹) and WW in clams fed on C. reinhardtii and P. subcapitata (FR = 131 WW^−1.05 and FR = 203 WW^−1.28, respectively), indicating that smaller (younger) individuals had a higher FR than larger (older) individuals in the tested range of particle size (i.e., 4–6 µm diameter). Such results highlight the strong influence of size/age on the filtration rate of C. fluminea and provide new insights to better understand the invasive capacity of this species.

过滤速率侵入亚蛤的（FR）的C.蚬各种尺寸范围为0.5至4.5克全身重量进行了实验受控的实验室条件下，使用不同的大小和biovolumes（两个浮游植物物种评估莱茵衣藻和门Pseudokirchneriella subcapitata）作为食物。总体而言，FR 的范围为 0 至 347 mL g ^-1  h ^-1（中值：52 mL g ^-1  h ^-1）。我们发现 所使用的两种浮游植物物种之间没有统计学差异 ( p > 0.05)，我们也没有发现个体 FRs（mL 个体^-1  h ^-1) 和湿重 (WW) 或壳长 (SL)。然而，我们确实发现以C. reinhardtii和P. subcapitata 为食的蛤的FRs (mL g ^-1  h ^-1 ) 和 WW之间存在显着的负相关关系（分别为 FR = 131 WW ^-1.05和 FR = 203 WW ^-1.28） ，表明在测试的粒径范围（即 4–6 µm 直径）中，较小（较年轻）的个体比较大（较年长）的个体具有更高的 FR。这些结果突出了大小/年龄对C.fluminea过滤率的强烈影响，并为更好地了解该物种的入侵能力提供了新的见解。