- Last fall many salmon moved up a nearby river.
- Researchers collected salmon DNA from the air there.
- They worked close to a salmon hatchery.
- The study looked at Coho salmon in fall.
- The team put air filters beside the river.
- The filters caught salmon DNA near the water.
- The DNA in air was much less than water.
- This idea may help find where salmon are.
- Scientists will study weather effects next.
- The work was done by a university team.
Difficult words
- researcher — a person who studies and finds factsResearchers
- hatchery — a place where fish eggs are kept
- filter — a tool that cleans air or waterair filters, filters
- collect — to get and bring together thingscollected
- effect — a change that happens because of somethingeffects
Tip: hover, focus or tap highlighted words in the article to see quick definitions while you read or listen.
Discussion questions
- Have you ever seen salmon in a river?
- Would you like to visit a hatchery?
- Do you think air can carry small things like DNA?
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