DRAFT, last updated 2/4/05
Dickey Basin Watershed Page – WRIA 20,
Tier 1
A. Watershed Information:
- General Watershed Description:
The Dickey sub-basin is well known for its production of coho salmon.
It consists of
plentiful sloughs, wetlands, and small streams, and is dominated by
low gradient habitat.
Because of the low-gradient nature, mass wasting is rare. However sedimentation
is still
a major habitat problem and is predominantly due to roads. Riparian
impacts occur
throughout the Dickey and are worsened because of windthrow. The strong
windstorms
in the winter destroy the riparian buffers left after recent timber
harvest in susceptible
areas. Warm water temperatures are another “poor” habitat
condition throughout the
Dickey sub-basin, and may be contributing to an increased distribution
of squawfish,
known predators of salmon. Blockages, such as culverts, are another
major habitat
problem in this sub-basin. The naturally low-gradient conditions result
in a lack of
natural blockages for salmonids, yet numerous culverts exist and should
be addressed.
Low water flows in the summer are thought to limit the production of
salmon and
steelhead. Impacts that worsen low flows include a reduction of fog
drip due to a loss of
older conifers within the watersheds, as well as altered wetlands due
to increased road
sedimentation and loss of wetland riparian vegetation. While historically,
LWD was
very abundant in these streams due to the low-gradients and hence,
lack of downstream
transport, LWD levels in the mainstems, especially in the East Fork
Dickey River have
recently decreased to low levels. Flooding in December, 1999 not only
washed out LWD
in the East Fork, but has also resulted in signs of channel instability.
Riparian roads
impact the floodplain conditions in Coal and Colby Creeks. From WRIA
20 Limiting Factors Analysis, p. 10.
- Hatchery impacts: See Table
4. Current Hatchery Information
- Stakeholders:
- Tier explanation (from NOPLE Salmon Habitat Recovery Strategy): See
Prioritized Watersheds in NOPLE
Strategy
- Bibliography:
B. Salmon Habitat Recovery Priorities:
- Salmonid stocks & their status. The following
salmonid stocks occur in this watershed. For more info about these
stocks, click here.
- Fall Chinook
- Fall Coho
- Winter Steelhead
- Priority salmon stocks. Recovery efforts will be
focused on the following salmonid stocks for the stated reasons:
- Priority Limiting Watershed Process & Habitat Features: See
Major Limiting Factors for Dickey.
- Major actions to protect and improve: Click
here for Quillayute Basin Project Prioritization, dated 2001.
- Priority actions and areas: Click
here for Quillayute Basin Project Prioritization, dated 2001.
- Community issues: Click
here for Quillayute Basin Project Prioritization, dated 2001.
C. Recovery Projects:
D. Monitoring:
E. Emerging Issues:
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