A spatial regime shift to stickleback dominance

(Stockholm University) Large numbers of three-spined stickleback have gradually taken over larger parts of the Baltic Sea's coastal ecosystem, shows a new scientific study. Stickleback is a small prey fish common in aquatic food webs across temperate Europe. The stickleback contributes to local ecosystem 'regime shifts', where young-of-the-year pike and perch decline in individual bays, and these shifts gradually spread like a wave from the outer archipelago into the mainland coast.

Source: EurekAlert! - Biology - August 27, 2020 Category: Biology Source Type: news