Geoduck Clam Anatomy: Siphon Structure and Burrowing Behavior #40799 (License: Personal Use)

This black-and-white anatomical drawing depicts a geoduck clam fully embedded in marine sediment, with its massive, muscular siphon extending vertically to the water’s surface. Arrows indicate water inflow and outflow through the siphon, illustrating the clam’s filter-feeding mechanism. The shell’s concentric growth rings and robust structure reflect its longevity-some individuals live over 160 years.

Used in marine biology education, seafood sustainability articles, or Pacific Northwest ecology resources; targets users seeking scientific understanding of bivalve adaptations or sustainable shellfish harvesting.