On a scale of 1 to 10 how endangered is coho salmon?

It's difficult to give a single "endangered" score for coho salmon because their status varies significantly depending on the specific population and location.

Here's why:

* Different populations have different levels of threat: Some coho salmon populations are thriving, while others are critically endangered.

* Endangered status is based on more than just numbers: Factors like habitat loss, pollution, and climate change all contribute to a species' endangerment.

* There are multiple classifications: A species can be considered "endangered" by one organization, "threatened" by another, or not listed at all.

Therefore, it's more helpful to say that:

* Coho salmon are generally considered a species of concern. Many populations are struggling, and they face serious threats.

* The overall status of coho salmon is complex and varies by region. You'd need to specify a particular population for a more accurate assessment.

If you're interested in learning more about the status of coho salmon in a specific region, you can consult resources like the IUCN Red List or local conservation organizations.