Answer:
There would be a increase in algae, and a slight decrease in fish.
Step-by-step explanation:
there would be an increase in algae because crustaceans one of the two organisms that feed off of it. Fish are able to live off of insect larvae, but in turn there be a decrease in larvae , causing a decrease later in fish. If there's a decrease in fish, there will be a decrease in reptile, since the reptiles are the only organisms that are eating fish.