During which phase of the moon do spring tides occur on

It is during that full moon and the new moon.

Spring tides occur during the full moon and the new moon as the gradational pull is much stronger when Earth, the Moon, and the Sun are lined up. Hope this helps! :)

Interacting group of various species in a common location. for example, a forest of trees and undergrowth plants, inhabited by animals and rooted in soil containing bacteria and fungi, constitutes a biological community.