by Amanda Lumry
Adventures of Riley: Survival of the Salmon

From the Publisher:
"Young adventurers Riley and Alice visit the pristine wilderness of
Southeast Alaska in order to solve a puzzling salmon migration mystery:
Why are Pacific Salmon thriving while North Atlantic Salmon are more
endangered than ever? Riley's daring quest for answers features moose,
bald eagles, grizzly bears and a very special guest appearance by
world-renowned animal expert, Jack Hanna."