Light affects bivalve behavior and gaping activity, but its potential effects on bivalve filtration remain poorly investigated. In this study, clearance rates of two bivalve species: the Asian clam, Corbicula fluminea and the paper pondshell, Utterbackia imbecillis, were assessed in light (6.5 ± 0.5 µmol m⁻² s⁻¹) and dark (0.0 µmol m⁻² s⁻¹) conditions. We found that clearance rates remained similar between C. fluminea (50 ± 18 mL g⁻¹ h⁻¹) and U. imbecillis (41 ± 10 mL g⁻¹ h⁻¹) during light conditions. However, C. fluminea (110 ± 15 mL g⁻¹ h⁻¹) filtered significantly faster than U. imbecillis (24 ± 6 mL g⁻¹ h⁻¹) in the dark condition (p < 0.05). The results indicated that light might affect the filtration activity in freshwater bivalves differently, depending on species.

光会影响双瓣膜的行为和裂口活动，但对双瓣膜过滤的潜在影响仍未得到很好的研究。在这项研究中，评估了两种双壳类动物的清除率：暗淡（6.5±0.5 µmol m ^-2  s ^-1）和暗淡（0.0 µmol m ^-2  s ）的亚洲蛤，Corbicula fluminea和纸壳壳，Utterbackia imbecillis。^-1）条件。我们发现，清除率仍然之间相似C.蚬（50±18mL的克^-1  ħ ^-1）和U. imbecillis（41±10mL的克^-1  ħ ^-1期间光条件下）。然而，C.蚬（110±15毫升克^-1  ħ ^-1）的速度比显著过滤U. imbecillis（24±6毫升克^-1  ħ ^-1在黑暗状态）（p  <0.05）。结果表明，光可能会影响淡水双壳类动物的过滤活性，具体取决于物种。