Oncorhynchus tshawytscha - Portland Harbor

This species is complete.

April 9, 2012 by Jorge Tomasevic

Author(s) Expertise:

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Sensitivity Factor	Sensitivity Help 1 - 7 (one being least sensitive, seven being most sensitive)	Confidence Help 1 - 5 (one being least sensitive, five being most sensitive)
Generalist/Specialist	4 Medium-High	5 Very Good
Physiology	5 High	4 Good
Life History	3 Medium	3 Fair
Habitat	7 Extremely High	4 Good
Dispersal Ability	2 Medium-Low	4 Good
Disturbance Regimes	5 High	3 Fair
Ecology	4 Medium-High	4 Good
Non-Climatic	5 High	4 Good
Other (weight)	4 (1) Medium-High	3 Fair

Sensitivity Score Help: 64 High

Sensitivity Score

100 * [(0.5 *(Dispersal Distance + Dispersal Barriers) + Disturbance Regimes + (0.5 * Generalist/Specialist) + Physiology + (0.5 * Life History) + Sensitive Habitats + Ecology + Non-Climatic Stressors + (Other * Weight) / 49 + (7 * Weight)]

Note: if Sensitive Habitats are identified, this factor automatically gets a value of seven, otherwise it remains zero.

Confidence Score Help: 3 Fair

Confidence Score

The Confidence Score is an average of the Confidence column above.

Overall User Ranking: 4 Medium-High

Common Name:

Chinook Salmon (juvenile outmigrants)

Is this Species completed:

Yes

Taxonomy

This is a description of the whole group

Scientific Name:

Oncorhynchus tshawytscha

Geography:

Portland Harbor

Realm:

Freshwater

Marine

Generalist/Specialist

Broadly, where does this species fall on the spectrum of generalist to specialist? :

Confidence in your assessment of the degree to which the species is a generalist or specialist:

5 Very Good

Please specify which factors, if any, make the species more of a specialist:

predator/prey relationship

phenology dependency

Comments:

primary: phenology dependency (timing). secondary: predator/prey relationship

Citations:

Information by Ginger Phalen

Physiology

Species' physiological sensitivity:

Confidence in how physiologically sensitive the species is to climate change:

4 Good

Please specify whether or not this species is physiologically sensitive to one or more of the following:

temperature

precipitation

salinity

dissolved O2

Comments:

salinity (ocean). temp, precip (FN). dissolved O2 (FN + ocean)

Citations:

Information by Ginger Phalen

Life History

Species' reproductive strategy:

Confidence in your assessment of the species' reprodcutive strategy:

3 Fair

Citations:

Information by Ginger Phalen

Sensitive Habitats

Depends on the following sensitive habitat types:

Coastal Lowlands/Marshes/Estuaries/Beaches

Seasonal Streams

Other (please specify in comments)

Confidence in whether the species depends on the listed sensitive habitat types:

4 Good

Level of philopatry:

low

Comments:

seasonal streams: for back h2o. other: mainstream rivers, side channel refuge

Citations:

Information by Ginger Phalen

Dispersal Ability

Maximum annual dispersal distance:

>100 km

Confidence in maximum annual dispersal distance:

5 Very Good

Within the context of dispersal distance above, do barriers to dispersal exist?:

4 Some

Confidence in barriers to dispersal exists:

4 Good

Comments:

Barriers: Portland to P.O.

Citations:

Information by Ginger Phalen

Disturbance Regimes

How sensitive is this species to one or more disturbance regimes:

5 more sensitive

Confidence in how sensitive is this species on one or more disturbance regimes:

3 Fair

Please check all disturbance regimes upon which the species is sensitive:

Flooding

Pollution

Urbanization

Pests

Other (please specify in comments section)

Comments:

Other: logging and farming

Citations:

Information by Ginger Phalen

Ecological Relationships

Please specify which of the following (if any) are sensitive to climate change for this species:

forage

predator/prey relationship

habitat

hydrology

Other

Confidence in how sensitive the species is to other effects of climate change on its ecology:

4 Good

Which types of climate and climate-driven changes in the environment affect these aspects of the species' ecology?:

temperature

precipitation

salinity

CO2

Other

How sensitive is this species’ ecological relationships to the effects of climate change?:

Comments:

other 1: temperature pred/prey: invasives other 2: D.O.

Citations:

Information by Ginger Phalen

Interacting non-climatic stressors

To what degree do other, non-climate-related threats, to the species make it more sensitive to climate change?:

Confidence in the degree to which non-climate-related threats affect the species' sensitivity to climate change:

4 Good

Comments:

Disease. Agriculture. Logging

Citations:

Information by Ginger Phalen

Other Sensitivities

Are there other critical factors that have not been addressed, which may make this species more sensitive to climate change?:

Non-native invasives Sea-level rise plus loss of nearshore forage habitat Ocean acidification Ocean upwelling plus marine trophic

Confidence in other critical factors:

3 Fair

Collectively, to what degree do these factors make the species sensitive to climate change?:

Confidence in the degree to which these factors make this species sensitive to climate change:

3 Fair

What weight should these factors have on the overall sensitivity of this species to climate change:

Citations:

Information by Ginger Phalen

Overall User Ranking

In your opinion, how would you rank the overall sensitivity of this species to climate change?:

4(moderate sensitivity)

Confidence in your overall assessment of the sensitivity of this species to climate change:

3 Fair

Citations:

Information by Ginger Phalen

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Climate Change Sensitivity Database

Oncorhynchus tshawytscha - Portland Harbor

Sensitivity Score

Confidence Score