What is the; Effect on the population due to no stonefly larvae? Effect of loss of stonefly larvae? On the blackfly larvae, water spider, and stickleback?

BLACKFLY LARVAE - The population may increase because there's less competition for algae, meaning more food. However, the population may decrease because they're more likely to be eaten by predators. WATER SPIDER - There would be less food, so the population would decrease. STICKLEBACK - There's less food since the population of waterspiders or mayfly larvae will decrease, meaning stickleback populations will also decrease.