Upstream eventIncreased, water pumping
Key Event Relationship Overview
AOPs Referencing Relationship
Life Stage Applicability
Key Event Relationship Description
In bivalves, sperm and oocytes are released via the siphon. This release is dependent upon the pumping action to move water forcefully out of the organism, carrying the gametes. Increased flow rate due to vigorous movement of cilia withing the gill filaments contributes to this pumping out of gametes (Carrol and Catapane, 2007; Gainey et al., 2003). The musculature within the gill filaments is under serotonergic or dopaminergic-serotinergic control.