How did it get the sea lamprey new environment?

The sea lamprey, originally native to the North Atlantic, invaded the Great Lakes in the early 20th century through the construction of shipping canals that connected the lakes to the ocean. These canals allowed the lamprey to bypass natural barriers and access new habitats. Once in the Great Lakes, the lamprey thrived due to the abundant fish populations, leading to ecological impacts and declines in native fish species. Their ability to reproduce rapidly and adapt to various environments facilitated their establishment in this new ecosystem.