biodeposition

bio- +‎ deposition

biodeposition (uncountable)

1. Deposition of biogenic material on the bottom of a body of water, usually in the forms of faeces and pseudofaeces.
   • 2016 February 4, “Spatial and Temporal Examination of Bivalve Communities in Several Estuaries of Southern California and Northern Baja California, MX”, in PLOS ONE‎, DOI:10.1371/journal.pone.0148220:

     These community-level changes have likely resulted in concomitant changes in the ecosystem functions and services, such as water filtration, biodeposition, bioturbation [7 ,8 ], provision of substrate for epibionts (e.g., algae and barnacles), refugia (e.g., crabs, fishes)[9 ], and food resources for economically-important and threatened species (e.g., fish, [10 ]; crabs, [11 ]; birds, [12 ]).