APHETI is doing a baseline study to identify and
monitor expanded colonizations of the Gallo mussel and their
hybrids in the South Sound Inlets. While some early
introductions of exotic mussels came from ballast water discharged
from ships entering Puget Sound, Taylor Resources Inc. has
intentionally introduced the Mytilus galloprovincialis mussels
into Totten Inlet. This is a matter of public record.
Areas of colonization are occurring as was feared.
Population size of an exotic species often remains relatively low
after initial introduction and then can rapidly increase years
later. This species has taken over the shorelines of southern
California and South Africa. It has displaced native species
and altered those local food chains.
a non-native species is intentionally introduces into an area, it
can displace local species. As for Mytilus galloprovincialis
mussels displacing the native Mytilus trossolus species entirely, time will
tell. Equally worrisome is the hybridization that has
already come from their union, and with it, unpredictable
reproduction patterns. The science still has not been done
to answer questions that governmental agencies are not asking.