tridacnid stomachs and feces can contain zooxanthellae and various other types of phytoplankton, various types of small zooplankton, fine filamentous algae, detritus, very fine sand, and sponge spicules (Yonge 1936, Mansour 1946, Ricard & Salvat 1977, Trench et al. 1981, Reid et al. 1984, Klumpp...