Scientists researching Pacific sea otters find that many members of the population are infected by a parasite, and a number of the sea otters must be destroyed to save the entire sea otter population. One of the main foods of sea otters is sea urchin, which eat kelp. The kelp forest is home to many species of fish. How is destroying some of the sea otters most likely to affect fish living in the kelp forest?
Emergency sea otters needed to save California's kelp forests
a
Destroying the sea otters will cause the fish population to increase.
b
Destroying the sea otters will cause the fish population to decrease.
c
Destroying the sea otters will cause the fish population to become extinct.
d
Destroying the sea otters will allow the fish population to remain constant.
b. Destroying the sea otters will cause the fish population to decrease.
Sea otters play a key role in controlling the sea urchin population, which in turn prevents the overgrazing of kelp forests by sea urchins. When sea otters are removed from the ecosystem, sea urchin populations can explode, leading to the destruction of kelp forests. This, in turn, can have a negative impact on the fish populations that rely on the kelp forests for shelter and food, ultimately leading to a decrease in the fish population.