|
Key Limiting Factor |
Impairment |
Habitat Affected |
Threat Type |
Threat Name |
Life Stage(s) |
Description |
Food |
Competition |
-- |
Species Management |
Species Introduction |
Juveniles |
Competition with brook trout limits bull trout productivity in the upper watersheds. |
Habitat Quantity and Quality |
Access and Availability |
Freshwater-Instream |
Agricultural Practices; Forest Management; Urbanization; Dam or Hydropower Facility Management |
Migration Impediments |
Juveniles, adults |
Diversion dams and culverts create fish passage barriers throughout the subbasin. |
Habitat Quantity and Quality |
Small-Scale Structural Complexity; Morphological Changes |
Freshwater-Instream |
Agricultural Practices; Urbanization |
Riparian Degradation; Bank Destabilization |
Juveniles, adults |
Lack of large woody debris is a problem throughout the subbasin due to land development, roads, and railroad. Lack of high quality cover, refugia, and diverse habitat types along the stream margin also limit productivity. In-channel conditions have been altered by channel straightening, channelization, and simplification. |
Habitat Quantity and Quality |
Small-Scale Structural Complexity; Morphological Changes |
Freshwater-Riparian |
Agricultural Practices; Forest Management |
Riparian Degradation |
Juveniles, adults |
Riparian habitat, channel sinuosity, floodplain function, and off-channel habitat have been lost or degraded. Canopy loss exits on harvested upland habitat. |
Instantaneous Mortality |
Predation |
-- |
Species Management |
Species Introduction |
Juveniles |
Predation by brook trout limits bull trout productivity in the upper watersheds. |
Water Quality |
Temperature; Oxygen; pH |
-- |
Agricultural Practices; Forest Management; Urbanization; Dam or Hydropower Facility Management |
Water: Storage or Withdrawal; Water: Temperature and Gas Alteration |
All |
The Lower Wenatchee River is on the WDOE 303d list for temperature, pH, and dissolved oxygen. Chiwaukum and Peshastin creeks are also on the 303d list for temperature exceedences. Mission Creek is listed for low dissolved oxygen, high fecal coliform, and pesticides. Chumstick Creek is included on the list for dissolved oxygen, fecal coliform, and pH exceedences. The Little Wenatchee River is listed for temperature exceedence. |
Water Quantity |
Decreased Water Quantity |
-- |
Dam or Hydropower Facility Management |
Water: Storage or Withdrawal |
Juveniles, adults |
Low flows are exacerbated by surface water diversions and ground water withdrawals. The Mission, Peshastin, Chumstick, Icicle creeks and Lower Wenatchee River, are 303d listed for low in-stream flows. Low flows and associated high in-stream temperatures prevent or impeded access to spawning grounds and reduce rearing habitat. |
|
|
Key Limiting Factor |
Impairment |
Habitat Affected |
Threat Type |
Threat Name |
Life Stage(s) |
Description |
Habitat Quantity and Quality |
Access and Availability; Morphological Changes |
Estuary |
Agricultural Practices; Urbanization |
Diking; Filling; Riparian Degradation; Wetland Loss |
Smolts |
Historical complex habitats have been modified through channelization, diking, development and other practices. |
Habitat Quantity and Quality |
Small-Scale Structural Complexity; Morphological Changes |
Freshwater-Instream |
Agricultural Practices; Urbanization |
Riparian Degradation; Bank Destabilization |
Juveniles, adults |
Lack of large woody debris is a problem throughout the subbasin due to land development, roads, and railroad. Lack of high quality cover, refugia, and diverse habitat types along the stream margin also limit productivity. In-channel conditions have been altered by channel straightening, channelization, and simplification. |
Habitat Quantity and Quality |
Small-Scale Structural Complexity; Morphological Changes |
Freshwater-Riparian |
Agricultural Practices; Forest Management |
Riparian Degradation |
Juveniles, adults |
Riparian habitat, channel sinuosity, floodplain function, and off-channel habitat have been lost or degraded. Canopy loss exits on harvested upland habitat. |
Instantaneous Mortality |
Anthropogenic Mortality |
-- |
Fishery Management |
Harvest |
Adults |
Coho are subject to ocean and fresh water harvest. |
Instantaneous Mortality |
Anthropogenic Mortality |
-- |
Dam or Hydropower Facility Management |
Migration Impediments |
Juveniles |
Juveniles and adults must pass seven mainstem dams during migration. |
Water Quality |
Temperature; Oxygen; pH |
-- |
Agricultural Practices; Forest Management; Urbanization; Dam or Hydropower Facility Management |
Water: Storage or Withdrawal; Water: Temperature and Gas Alteration |
All |
The Lower Wenatchee River is on the WDOE 303d list for temperature, pH, and dissolved oxygen. Chiwaukum and Peshastin creeks are also on the 303d list for temperature exceedences. Mission Creek is listed for low dissolved oxygen, high fecal coliform, and pesticides. Chumstick Creek is included on the list for dissolved oxygen, fecal coliform, and pH exceedences. The Little Wenatchee River is listed for temperature exceedence. |
|
|
Key Limiting Factor |
Impairment |
Habitat Affected |
Threat Type |
Threat Name |
Life Stage(s) |
Description |
Habitat Quantity and Quality |
Access and Availability |
Freshwater-Instream |
Agricultural Practices; Forest Management; Urbanization; Dam or Hydropower Facility Management |
Migration Impediments |
Juveniles, adults |
Diversion dams and culverts create fish passage barriers throughout the subbasin. |
Habitat Quantity and Quality |
Access and Availability; Morphological Changes |
Estuary |
Agricultural Practices; Urbanization |
Diking; Filling; Riparian Degradation; Wetland Loss |
Smolts |
Historical complex habitats have been modified through channelization, diking, development and other practices. |
Instantaneous Mortality |
Anthropogenic Mortality |
-- |
Dam or Hydropower Facility Management |
Migration Impediments |
Juveniles; adults |
Juveniles and adults must pass seven mainstem dams during migration. |
Water Quality |
Temperature; Oxygen; pH |
-- |
Agricultural Practices; Forest Management; Urbanization; Dam or Hydropower Facility Management |
Water: Storage or Withdrawal; Water: Temperature and Gas Alteration |
All |
The Lower Wenatchee River is on the WDOE 303d list for temperature, pH, and dissolved oxygen. Chiwaukum and Peshastin creeks are also on the 303d list for temperature exceedences. Mission Creek is listed for low dissolved oxygen, high fecal coliform, and pesticides. Chumstick Creek is included on the list for dissolved oxygen, fecal coliform, and pH exceedences. The Little Wenatchee River is listed for temperature exceedence. |
Water Quantity |
Decreased Water Quantity |
-- |
Dam or Hydropower Facility Management |
Water: Storage or Withdrawal |
Juveniles, adults |
Low flows are exacerbated by surface water diversions and ground water withdrawals. The Mission, Peshastin, Chumstick, Icicle creeks and Lower Wenatchee River, are 303d listed for low in-stream flows. Low flows and associated high in-stream temperatures prevent or impeded access to spawning grounds and reduce rearing habitat. |
|
|
Key Limiting Factor |
Impairment |
Habitat Affected |
Threat Type |
Threat Name |
Life Stage(s) |
Description |
Habitat Quantity and Quality |
Access and Availability |
Freshwater-Instream |
Agricultural Practices; Forest Management; Urbanization; Dam or Hydropower Facility Management |
Migration Impediments |
Juveniles, adults |
Diversion dams and culverts create fish passage barriers throughout the subbasin. |
Habitat Quantity and Quality |
Access and Availability; Morphological Changes |
Estuary |
Agricultural Practices; Urbanization |
Diking; Filling; Riparian Degradation; Wetland Loss |
Smolts |
Historical complex habitats have been modified through channelization, diking, development and other practices. |
Habitat Quantity and Quality |
Small-Scale Structural Complexity; Morphological Changes |
Freshwater-Instream |
Agricultural Practices; Urbanization |
Riparian Degradation; Bank Destabilization |
Juveniles, adults |
Lack of large woody debris is a problem throughout the subbasin due to land development, roads, and railroad. Lack of high quality cover, refugia, and diverse habitat types along the stream margin also limit productivity. In-channel conditions have been altered by channel straightening, channelization, and simplification. |
Habitat Quantity and Quality |
Small-Scale Structural Complexity; Morphological Changes |
Freshwater-Riparian |
Agricultural Practices; Forest Management |
Riparian Degradation |
Juveniles, adults |
Riparian habitat, channel sinuosity, floodplain function, and off-channel habitat have been lost or degraded. Canopy loss exits on harvested upland habitat. |
Instantaneous Mortality |
Anthropogenic Mortality |
-- |
Dam or Hydropower Facility Management |
Migration Impediments |
Juveniles |
Juveniles and adults must pass seven mainstem dams during migration. |
Water Quality |
Temperature; Oxygen; pH |
-- |
Agricultural Practices; Forest Management; Urbanization; Dam or Hydropower Facility Management |
Water: Storage or Withdrawal; Water: Temperature and Gas Alteration |
All |
The Lower Wenatchee River is on the WDOE 303d list for temperature, pH, and dissolved oxygen. Chiwaukum and Peshastin creeks are also on the 303d list for temperature exceedences. Mission Creek is listed for low dissolved oxygen, high fecal coliform, and pesticides. Chumstick Creek is included on the list for dissolved oxygen, fecal coliform, and pH exceedences. The Little Wenatchee River is listed for temperature exceedence. |
|
|
Key Limiting Factor |
Impairment |
Habitat Affected |
Threat Type |
Threat Name |
Life Stage(s) |
Description |
Habitat Quantity and Quality |
Access and Availability |
Freshwater-Instream |
Agricultural Practices; Forest Management; Urbanization; Dam or Hydropower Facility Management |
Migration Impediments |
Juveniles, adults |
Diversion dams and culverts create fish passage barriers throughout the subbasin. |
Habitat Quantity and Quality |
Access and Availability; Morphological Changes |
Estuary |
Agricultural Practices; Urbanization |
Diking; Filling; Riparian Degradation; Wetland Loss |
Smolts |
Historical complex habitats have been modified through channelization, diking, development and other practices. |
Habitat Quantity and Quality |
Small-Scale Structural Complexity; Morphological Changes |
Freshwater-Instream |
Agricultural Practices; Urbanization |
Riparian Degradation; Bank Destabilization |
Juveniles, adults |
Lack of large woody debris is a problem throughout the subbasin due to land development, roads, and railroad. Lack of high quality cover, refugia, and diverse habitat types along the stream margin also limit productivity. In-channel conditions have been altered by channel straightening, channelization, and simplification. |
Habitat Quantity and Quality |
Small-Scale Structural Complexity; Morphological Changes |
Freshwater-Riparian |
Agricultural Practices; Forest Management |
Riparian Degradation |
Juveniles, adults |
Riparian habitat, channel sinuosity, floodplain function, and off-channel habitat have been lost or degraded. Canopy loss exits on harvested upland habitat. |
Instantaneous Mortality |
Anthropogenic Mortality |
-- |
Fishery Management |
Harvest |
Adults |
Spring Chinook are subject to fresh water harvest. |
Instantaneous Mortality |
Anthropogenic Mortality |
-- |
Dam or Hydropower Facility Management |
Migration Impediments |
Juveniles |
Juveniles and adults must pass seven mainstem dams during migration. |
Instantaneous Mortality |
Competition; Pathogens |
-- |
Artificial Propagation |
Hatchery Fish Production; Disease Amplification and Transfer |
Juveniles |
Competition, genetic introgression, and disease transmission from hatchery introductions may reduce productivity. |
Instantaneous Mortality |
Predation |
-- |
Dam or Hydropower Facility Management; Species Management |
Predators: Fish; Predators: Avian; Predators: Marine Mammal |
Juveniles |
An increase in populations of indigenous predator fish species, and the immigration of diving birds are limiting survival of juvenile salmonids. Non-native predator fishes are limiting survival of juvenile salmonids. |
Water Quality |
Temperature; Oxygen; pH |
-- |
Agricultural Practices; Forest Management; Urbanization; Dam or Hydropower Facility Management |
Water: Storage or Withdrawal; Water: Temperature and Gas Alteration |
All |
The Lower Wenatchee River is on the WDOE 303d list for temperature, pH, and dissolved oxygen. Chiwaukum and Peshastin creeks are also on the 303d list for temperature exceedences. Mission Creek is listed for low dissolved oxygen, high fecal coliform, and pesticides. Chumstick Creek is included on the list for dissolved oxygen, fecal coliform, and pH exceedences. The Little Wenatchee River is listed for temperature exceedence. |
|
|
Key Limiting Factor |
Impairment |
Habitat Affected |
Threat Type |
Threat Name |
Life Stage(s) |
Description |
Habitat Quantity and Quality |
Access and Availability |
Freshwater-Instream |
Agricultural Practices; Forest Management; Urbanization; Dam or Hydropower Facility Management |
Migration Impediments |
Juveniles, adults |
Diversion dams and culverts create fish passage barriers throughout the subbasin. |
Habitat Quantity and Quality |
Access and Availability; Morphological Changes |
Estuary |
Agricultural Practices; Urbanization |
Diking; Filling; Riparian Degradation; Wetland Loss |
Smolts |
Historical complex habitats have been modified through channelization, diking, development and other practices. |
Habitat Quantity and Quality |
Small-Scale Structural Complexity; Morphological Changes |
Freshwater-Instream |
Agricultural Practices; Urbanization |
Riparian Degradation; Bank Destabilization |
Juveniles, adults |
Lack of large woody debris is a problem throughout the subbasin due to land development, roads, and railroad. Lack of high quality cover, refugia, and diverse habitat types along the stream margin also limit productivity. In-channel conditions have been altered by channel straightening, channelization, and simplification. |
Habitat Quantity and Quality |
Small-Scale Structural Complexity; Morphological Changes |
Freshwater-Riparian |
Agricultural Practices; Forest Management |
Riparian Degradation |
Juveniles, adults |
Riparian habitat, channel sinuosity, floodplain function, and off-channel habitat have been lost or degraded. Canopy loss exits on harvested upland habitat. |
Instantaneous Mortality |
Anthropogenic Mortality |
-- |
Fishery Management |
Harvest |
Adults |
Summer Chinook are subject to fresh water harvest. |
Instantaneous Mortality |
Anthropogenic Mortality |
-- |
Dam or Hydropower Facility Management |
Migration Impediments |
Juveniles |
Juveniles and adults must pass seven mainstem dams during migration. |
Instantaneous Mortality |
Competition; Pathogens |
-- |
Artificial Propagation |
Hatchery Fish Production; Disease Amplification and Transfer |
Juveniles |
Competition, genetic introgression, and disease transmission from hatchery introductions may reduce productivity. |
Instantaneous Mortality |
Predation |
-- |
Dam or Hydropower Facility Management; Species Management |
Predators: Fish; Predators: Avian; Predators: Marine Mammal |
Juveniles |
An increase in populations of indigenous predator fish species, and the immigration of diving birds are limiting survival of juvenile salmonids. Non-native predator fishes are limiting survival of juvenile salmonids. |
Water Quality |
Temperature; Oxygen; pH |
-- |
Agricultural Practices; Forest Management; Urbanization; Dam or Hydropower Facility Management |
Water: Storage or Withdrawal; Water: Temperature and Gas Alteration |
All |
The Lower Wenatchee River is on the WDOE 303d list for temperature, pH, and dissolved oxygen. Chiwaukum and Peshastin creeks are also on the 303d list for temperature exceedences. Mission Creek is listed for low dissolved oxygen, high fecal coliform, and pesticides. Chumstick Creek is included on the list for dissolved oxygen, fecal coliform, and pH exceedences. The Little Wenatchee River is listed for temperature exceedence. |
|
|
Key Limiting Factor |
Impairment |
Habitat Affected |
Threat Type |
Threat Name |
Life Stage(s) |
Description |
Habitat Quantity and Quality |
Access and Availability |
Freshwater-Instream |
Agricultural Practices; Forest Management; Urbanization; Dam or Hydropower Facility Management |
Migration Impediments |
Juveniles, adults |
Diversion dams and culverts create fish passage barriers throughout the subbasin. |
Habitat Quantity and Quality |
Access and Availability; Morphological Changes |
Estuary |
Agricultural Practices; Urbanization |
Diking; Filling; Riparian Degradation; Wetland Loss |
Smolts |
Historical complex habitats have been modified through channelization, diking, development and other practices. |
Habitat Quantity and Quality |
Small-Scale Structural Complexity; Morphological Changes |
Freshwater-Instream |
Agricultural Practices; Urbanization |
Riparian Degradation; Bank Destabilization |
Juveniles, adults |
Lack of large woody debris is a problem throughout the subbasin due to land development, roads, and railroad. Lack of high quality cover, refugia, and diverse habitat types along the stream margin also limit productivity. In-channel conditions have been altered by channel straightening, channelization, and simplification. |
Habitat Quantity and Quality |
Small-Scale Structural Complexity; Morphological Changes |
Freshwater-Riparian |
Agricultural Practices; Forest Management |
Riparian Degradation |
Juveniles, adults |
Riparian habitat, channel sinuosity, floodplain function, and off-channel habitat have been lost or degraded. Canopy loss exits on harvested upland habitat. |
Instantaneous Mortality |
Anthropogenic Mortality |
-- |
Dam or Hydropower Facility Management |
Migration Impediments |
Juveniles |
Juveniles and adults must pass seven mainstem dams during migration. |
Instantaneous Mortality |
Competition; Pathogens |
-- |
Artificial Propagation |
Hatchery Fish Production; Disease Amplification and Transfer |
Juveniles |
Competition, genetic introgression, and disease transmission from hatchery introductions may reduce productivity. |
Instantaneous Mortality |
Predation |
-- |
Dam or Hydropower Facility Management; Species Management |
Predators: Fish; Predators: Avian; Predators: Marine Mammal |
Juveniles |
An increase in populations of indigenous predator fish species, and the immigration of diving birds are limiting survival of juvenile salmonids. Non-native predator fishes are limiting survival of juvenile salmonids. |
Water Quality |
Temperature; Oxygen; pH |
-- |
Agricultural Practices; Forest Management; Urbanization; Dam or Hydropower Facility Management |
Water: Storage or Withdrawal; Water: Temperature and Gas Alteration |
All |
The Lower Wenatchee River is on the WDOE 303d list for temperature, pH, and dissolved oxygen. Chiwaukum and Peshastin creeks are also on the 303d list for temperature exceedences. Mission Creek is listed for low dissolved oxygen, high fecal coliform, and pesticides. Chumstick Creek is included on the list for dissolved oxygen, fecal coliform, and pH exceedences. The Little Wenatchee River is listed for temperature exceedence. |
|
|
Key Limiting Factor |
Impairment |
Habitat Affected |
Threat Type |
Threat Name |
Life Stage(s) |
Description |
Habitat Quantity and Quality |
Access and Availability |
Freshwater-Instream |
Agricultural Practices; Forest Management; Urbanization; Dam or Hydropower Facility Management |
Migration Impediments |
Juveniles, adults |
Diversion dams and culverts create fish passage barriers throughout the subbasin. |
Habitat Quantity and Quality |
Small-Scale Structural Complexity; Morphological Changes |
Freshwater-Instream |
Agricultural Practices; Urbanization |
Riparian Degradation; Bank Destabilization |
Juveniles, adults |
Lack of large woody debris is a problem throughout the subbasin due to land development, roads, and railroad. Lack of high quality cover, refugia, and diverse habitat types along the stream margin also limit productivity. In-channel conditions have been altered by channel straightening, channelization, and simplification. |
Habitat Quantity and Quality |
Small-Scale Structural Complexity; Morphological Changes |
Freshwater-Riparian |
Agricultural Practices; Forest Management |
Riparian Degradation |
Juveniles, adults |
Riparian habitat, channel sinuosity, floodplain function, and off-channel habitat have been lost or degraded. Canopy loss exits on harvested upland habitat. |
Water Quality |
Temperature; Oxygen; pH |
-- |
Agricultural Practices; Forest Management; Urbanization; Dam or Hydropower Facility Management |
Water: Storage or Withdrawal; Water: Temperature and Gas Alteration |
All |
The Lower Wenatchee River is on the WDOE 303d list for temperature, pH, and dissolved oxygen. Chiwaukum and Peshastin creeks are also on the 303d list for temperature exceedences. Mission Creek is listed for low dissolved oxygen, high fecal coliform, and pesticides. Chumstick Creek is included on the list for dissolved oxygen, fecal coliform, and pH exceedences. The Little Wenatchee River is listed for temperature exceedence. |
Water Quantity |
Decreased Water Quantity |
-- |
Dam or Hydropower Facility Management |
Water: Storage or Withdrawal |
Juveniles, adults |
Low flows are exacerbated by surface water diversions and ground water withdrawals. The Mission, Peshastin, Chumstick, Icicle creeks and Lower Wenatchee River, are 303d listed for low in-stream flows. Low flows and associated high in-stream temperatures prevent or impeded access to spawning grounds and reduce rearing habitat. |
|
|