Transcript Welcome to the Salmon Trail!.ppt

Welcome to the Salmon Trail!
Taking a journey of hundreds of
miles from freshwater stream to
the ocean and back, facing such
dangers as dams and fishermen
you will attempt to keep as many
of your fish alive as possible.
You (your group) will begin with
your very own redd full of salmon
eggs. Your job, should you choose
to take it, is to do everything in
your power to help as many of
your salmon population survive
to spawn as possible.
Eggs
There are 8,000 eggs in your redd.
The female salmon has two areas she could
lay her eggs in the stream.
Option 1: A grassy area
Option 2: A gravelly area
Which option do you choose?
Congratulations! Your surviving eggs
hatched and have grown to alevins!
Alevin
Your alevins now have two options for
feeding.
Option 1: Stay in the general area where they
hatched feeding on the plankton and small
insects available in the immediate area.
Option 2: Venture out into the stream to find
different food sources.
Which option do you choose?
Congratulations! Your surviving alevins
have grown to fry!
Fry
Your fry now have two options for travelling
downstream.
Option 1: Stay near the banks of the streams
underneath the overhanging foliage as they
travel.
Option 2: Travel down the middle of the stream
with the strongest current.
Which option do you choose?
Congratulations your surviving
fry have grown to smolts!
Smolt
The stream your salmon population is traveling
down passes through an agricultural area. You
have some control over the water rights for the
farmers. You have two options.
Option 1: Allow farmers to install screened
irrigation ditches.
Option 2: Allow farmers to install unscreened
irrigation ditches.
Which option do you choose?
Congratulations! Your
surviving smolts have grown
to adulthood!
Adults
You have some control over the amount of
private (individual people) fishing in the
ocean and in the stream. You have two
options.
Option 1: Limit fishing in the ocean
Option 2: Limit fishing in the stream
Which option do you choose?
Congratulations! Your surviving
adults have made it to the ocean!
Spawners
You are part of a planning committee for the placement of a dam
in the area for much needed hydroelectric power. You have two
options.
Option 1: Build the dam on the largest river in the area for the
most power. This river is also the home stream for the largest
population of salmon in the area, and has multiple homes and
agricultural areas along its banks.
Option 2: Build two smaller dams on two smaller streams that
are the home streams for a much smaller population of salmon.
They also have no homes or agricultural areas along their
banks.
Which option do you choose?
Congratulations! Your spawning salmon
have made it back to their spawning
beds to lay their eggs!