Mussels are found in large colonies on exposed rocky outcrops
along the coastline. Filtering out plankton from the crashing
waves and currents, mussels struggle to survive. Their formation
into dense clusters helps them retain moisture as well as lessen
wave shock. Mussels are important in providing shelter for a
variety of smaller organisms such as crabs, marine worms, and
barnacles. The main predator of mussels is the Ochre Sea Star.
Often considered a delicacy, mussels should not be eaten between
the dates of May 1 and October 31. During this time mussels may
filter and accumulate an extremely toxic plankton. Consuming
mussels during this period can cause paralysis and death in humans.
Habitat/Range: Mussels are abundant along surf exposed coastlines
and wharf pilings from Alaska to Baja California.