1. Names ________________________________________________________ Per ______
Sea Otters in Decline – An Ecological Mystery
Make a list of every organism involved in this scenario. Next to their name, briefly
describe the organism’s niche.
List as many reason that you can think of that might be causing the sea otter
population decline.
Rank the order of the three prey species that you would prefer to eat. Give a
reason for your ranking.
With your partners, make a prediction about what will happen to the kelp forests
of the Aleutian Islands habitat if the sea otters become extinct.
Draw a food web showing the feeding relationships between all of the members
of this ecosystem.

2. With your partners, sum everything up. What will eventually happen to all the
members of this ecosystem if the sea otters become extinct?
Homework Question
Using one or more complete sentences, predict what would happen to every member of
this population if the Yellow Perch population drastically decreased due to over fishing.