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Restoration
Our efforts to enhance salmon spawning in the Maxwelton
Creek have improved habitat and fixed fish passage issues.
Salmon need:
- cool, unpolluted water,
- clean gravel that won't entomb their eggs in
fine sediment,
- sufficient water flow at the right times,
- habitat that provide food and cover from preditors
allowing juveniles to develop, and
- passage to and from the ocean.
Measurements
of temperature and dissolved oxygen have shown the damage
from channeling the stream and removing trees and brush
that border the creek (riparian buffer). Thick sediment
in the stream is another result of removing this barrier.
Through a collaboration with willing landowners, Adopt-a-Stream,
the State Department of Ecology and Island County Public
Works, we have restored
1000 feet of riparian buffer. This partnership also
replaced
a critical culvert blocking the migration of fish
up the middle reach of the Maxwelton. Island County
hopes to replace
several road culverts to enhance road safety and eliminate
critical fish passage issues.
We will continue to assess water quality, invertebrates
(fish food) and salmon in the various stages of their
life cycle in the Maxwelton and Quade Creek.
Read more about annual smolt counts
In 2006-08 we completed additional fish passage and
habitat restoration projects on private property along
Quade Creek, a major tributary in the Maxwelton Watershed.
We work with students from Edmonds
Community College to do habitat assessments on Quade
Creek pre- and post-restoration, as part of a project
for National Fish & Wildlife Foundation. Read
more
Students study the
culvert at the mouth of
Maxwelton Creek
Impact on the Nearshore
The Maxwelton watershed encompasses not only the drainage
basin for the Maxwelton system but the nearshore marine
environment in adjacent shoreline areas of Useless Bay,
including adjoining coastal bluffs. This nearshore habitat
is an important feeding and rearing stop for migrating
salmon in several life stages, including listed Coho
and Chum salmon.
A recent
study by Washington Trout of the nearshore on the
West side of Whidbey Island documents these findings.
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