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Elochoman Subbasin Dashboard

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Objectives

Objectives (from 2004 subbasin plan and data)
>1 young per occupied nestBald Eagle
1,300 natural adults Chum
1,500 natural adults Fall Chinook
10% productivity increaseWinter Steelhead
2,400 natural adults Coho
20% productivity increaseFall Chinook
20% productivity increaseWinter Steelhead
30% productivity increaseFall Chinook
50% productivity increaseChum
60% productivity increaseChum
600 natural adults Winter Steelhead
Abundance (estuary/mainstem adult spawning only) at I-205: 1,250Chum
Abundance (estuary/mainstem adult spawning only) at Ives Island: 6,400Chum
Abundance (estuary/mainstem adult spawning only) at Multnomah Falls: 2,300Chum
Abundance at Ives and Pierce Islands: 12,000Fall Chinook
Achieve popualtion numbers of 1,100 (currently <200) and a high population viability (currently low)Chum
Achieve popualtion numbers of 1,100 (currently 50-100) and a high population viability (currently very low)Chum
Achieve popualtion numbers of 1,400 (currently 100-2,300) and a high population viability (currently low)Fall Chinook
Achieve popualtion numbers of 150 -600 (currently 200-700) and a medium population viability (currently low)Winter Steelhead
Achieve popualtion numbers of 250-2,000 (currently 300-4,000) and a medium population viability (currently low)Fall Chinook
Achieve popualtion numbers of 300 (currently unknown) and a medium population viability (currently low)Coho
Achieve popualtion numbers of 600 (currently 50-550) and a high population viability (currently low)Winter Steelhead
Achieve popualtion numbers of 600 (currently unknown) and a high population viability (currently low)Coho
Continue to and reduce, monitor and understand contaminant sources in the Lower Columbia RiverBald Eagle
Crims/Fisher/Lord Islands: ~50Columbia Whitetailed Deer
Decrease conversion of pastures and woodlots to intensive development.Columbia Whitetailed Deer
Develop an understanding of emigrating juvenile chum salmon life history diversity and habitat use in the lower mainstem, Western Oregon tributaries, estuary, and plume.Chum
Develop an understanding of emigrating juvenile coho life history diversity and habitat use in the lower mainstem, Western Oregon tributaries, estuary, and plume.Coho
Develop an understanding of emigrating juvenile fall chinook life history diversity and habitat use in the lower mainstem, Western Oregon tributaries, estuary, and plume.Fall Chinook
Develop an understanding of emigrating juvenile winter steelhead life history diversity and habitat use in the lower mainstem, Western Oregon tributaries, estuary, and plume.Winter Steelhead
Document the interaction between emigrating juvenile chum salmon and introduced species; minimize negative interactions.Chum
Document the interaction between emigrating juvenile coho and introduced species; minimize negative interactions.Coho
Document the interaction between emigrating juvenile fall chinook and introduced species; minimize negative interactions.Fall Chinook
Document the interaction between emigrating juvenile winter steelhead and introduced species; minimize negative interactions.Winter Steelhead
Eliminate or mitigate artificial access barriers for migrating adults, creating additional spawning & rearing habitatWinter Steelhead
Eliminate or mitigate artificial access barriers for migrating adultsFall Chinook
Eliminate or mitigate artificials access barriers for migrating adults, creating additional spawning & rearing habitatCoho
Evaluate/improve survival of upriver juvenile coho emigrating via barge or dam passage.Coho
Evaluate/improve survival of upriver juvenile winter steelhead emigrating via barge or dam passage.Winter Steelhead
Evaluate/improve survival of upriver juvenile fall chinook emigrating via barge or dam passage.Fall Chinook
Identify and Protect existing nesting and foraging areas to ensure no population declines.Bald Eagle
Increase availability of habitatColumbia Whitetailed Deer
Increase forested areas in lowlands and floodplain with hardwood and some coniferous riparian species.Columbia Whitetailed Deer
Increase productivity and abundance, thereby creating a stable, viable population.Columbia Whitetailed Deer
Increase shallow water peripheral and side channel habitats toward historic levels.Chum
Increase shallow water peripheral and side channel habitats toward historic levels.Fall Chinook
Increase the number of overflow channels, lakes, ponds, backwaters, wetlands, and sloughs in floodplain.Columbia Whitetailed Deer
Increase the viability of the bald eagle breeding population in the lower Columbia River, particularly through increased reproductive success.Bald Eagle
Julia Butler Hansen National Wildlife Refuge: ~150Columbia Whitetailed Deer
Mainland refuge: ~150Columbia Whitetailed Deer
Maintain favorable water flow and temperature throughout mainstem incubation period (approx. November-March).Chum
Maintain favorable water flow and temperature throughout mainstem migration period (~ August-November).Coho
Maintain favorable water flow and temperature throughout mainstem migration period (~ December-April).Winter Steelhead
Maintain favorable water flow and temperature throughout mainstem migration period (approx. August-November).Fall Chinook
Maintain favorable water flow and temperature throughout migration period (October- November).Chum
Maintain favorable water flow and temperature throughout mainstem and western Oregon tributary incubation period (approx. November-March).Fall Chinook
Maintain favorable water flow and temperature throughout mainstem spawning period (approx. November to December).Fall Chinook
Maintain favorable water flow and temperature throughout mainstem spawning period (approx. November).Chum
Minimize bald eagle disturbance.Bald Eagle
Minimize flood mortality effects.Columbia Whitetailed Deer
Minimize interactions with black-tailed deer.Columbia Whitetailed Deer
Minimize occurrence of parasites and disease.Columbia Whitetailed Deer
Minimize persecution or other man-induced mortality.Bald Eagle
Monitor and minimize mortality resulting from vehicle collisions.Columbia Whitetailed Deer
Mortality: Current estimates range from 0.28 to 0.59 and average 0.46. Mortality estimates at population recovery goals range from 0.23 to 0.58 and average 0.42.Chum
Mortality: Current estimates range from 0.10 to 0.18 and average 0.14. Mortality estimates at population recovery goals range from 0.10 to 0.18 and average 0.10.Winter Steelhead
Mortality: Current mortality estimates range from 0.29 to 0.38 and average 0.33. Mortality estimates at population recovery goals range from 0.16 to 0.36 and average 0.27. Current mortality estimate for the Lewis River late fall population was 0.39; mortality estimate at population recovery was 0.26.Fall Chinook
Net improvement increments: range from 0% for stabilizing populations to 200% for at least one population targeted for very high viability.Fall Chinook
Net productivity improvements: 30% average for populations targeted for high viability.Fall Chinook
Net productivity increments: 10-80% to reach high viability for steelhead.Winter Steelhead
Net productivity increments: 30-1000% to reach high viability for chum.Chum
Productivity: >1 recruit per spawnerChum
Productivity: >1 recruit per spawnerFall Chinook
Protect and enhance existing foraging habitat to insure no further net degradation.Columbia Whitetailed Deer
Protect and restore adult spawning habitat in the Western Oregon tributariesCoho
Protect and restore juvenile rearing habitat in the Western Oregon tributariesCoho
Protect and restore juvenile rearing habitat in the Western Oregon tributariesFall Chinook
Protect existing nesting and foraging habitat.Bald Eagle
Protect existing rearing habitat to ensure no further net degradation.Winter Steelhead
Protect existing rearing habitat to ensure no further net degradation.Chum
Protect existing rearing habitat to ensure no further net degradation.Fall Chinook
Protect existing rearing habitat to ensure no further net degradation.Coho
Protect existing spawning habitat to ensure no further net degradation.Chum
Protect existing spawning habitat to ensure no further net degradation.Fall Chinook
Protect genetic integrity and biological diversity and abundance of depressed salmonid stocks by directing effort of commercial harvesters in the estuary to alternative, hatchery derived stocksWinter Steelhead
Protect genetic integrity and biological diversity and abundance of depressed salmonid stocks by directing effort of commercial harvesters in the estuary to alternative, hatchery derived stocksFall Chinook
Protect genetic integrity and biological diversity and abundance of depressed salmonid stocks by directing effort of commercial harvesters in the estuary to alternative, hatchery derived stocks.Coho
Reduce contaminant exposure of emigrating juveniles.Coho
Reduce contaminant exposure of emigrating juveniles.Winter Steelhead
Reduce contaminant exposure of emigrating juveniles.Chum
Reduce contaminant exposure of emigrating juveniles.Fall Chinook
Reduce contaminant exposure.Bald Eagle
Reduce predation mortality on emigrating juveniles.Chum
Reduce predation mortality on emigrating juveniles.Coho
Reduce predation mortality on emigrating juveniles.Fall Chinook
Reduce predation mortality on emigrating juveniles.Winter Steelhead
Reduce predation mortality on fawnsColumbia Whitetailed Deer
Reduce predation mortality on migrating adults.Chum
Reduce predation mortality on migrating adults.Coho
Reduce predation mortality on migrating adults.Fall Chinook
Reduce predation mortality on migrating adults.Winter Steelhead
Reduce threats from physical hazards and persecutionBald Eagle
Reintroduce deer to suitable habitat.Columbia Whitetailed Deer
Restore connectivity between river and floodplain, as well as in-river habitats.Winter Steelhead
Restore connectivity between tributary deltas and the estuary, the river and the floodplain, as well as inriver habitats.Chum
Restore connectivity between tributary deltas and the estuary; the river and thefloodplain; as well as inriver habitats.Fall Chinook
Restore connectivity between tributary deltas and the estuary, the river and the floodplain, as well as in-river habitats.Coho
Restore habitat diversity and geomorphology of tidally influenced reaches in the WOTs subbareaChum
Restore N-type coho to coastal stratumCoho
Reverse declining abundance trends and maintain life history diversity (resident, fluvial, and anadromous forms).Coastal Cutthroat
Tenasillahe Island: ~150Columbia Whitetailed Deer

Goals and strategies under development

Limiting factors & actions

Chart.

Click to display the 41 occurrences of impairments by limiting factor affecting multiple species and 8 recommended actions. Click bars for more detail.

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