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Project Noah Nature School
Mytilus trossulus
A medium-sized edible marine bivalve mollusc in the family Mytilidae.
Spotted several clustered together.
Blue Mussels spawn in spring in Puget Sound. The eggs develop rapidly and hatch into veliger larvae in a few days. The larvae enter the plankton, their movements aided by long byssal threads they secrete, and drift around for a month or two before they settle out onto varied substrates as tiny bivalves. Each individual lives for at least several years.
Spotted on Feb 24, 2019
Submitted on Mar 2, 2019
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