Giovanni Coco, Simon F. Thrush, Malcolm O. Green, and Judi E. Hewitt. 2006. The role of feedbacks between bivalve density, flow, and suspended sediment concentration on patch stable states. Ecology 87:2862–2870.

Appendix B. A figure showing velocity distributions in Mahurangi Harbour, New Zealand.

FIG. B1. Velocity distributions, Mahurangi Harbour. Measurements collected at sites indicated on the right panel have been extensively described in Green et al. (1998). 20 units in the coordinate system correspond to 2 km. Site 4 (S4) was the only site with no Atrina and where skimming flow was not observed to develop. Sediment at site 2 (S2) was characterized by sandy-shell material. At the other sites (S1, S3, S4), a muddy component was always present. Colorscale indicates increasing (from blue to red) percentages of time above a certain velocity.

LITERATURE CITED

Green, M. O., J. E. Hewitt, and S. F. Thrush. 1998. Seabed drag coefficient over natural beds of horse mussels (Atrina Zelandica). Journal of Marine Research 56:613–637.