This fish is used for aquaculture throughout Asia, particularly in China and Vietnam. Silver carp were imported to North America in the 1970s to control algae growth in aquaculture and municipal wastewater treatment facilities. They escaped from captivity soon after their importation. They are considered a highly invasive species
Side (lateral) view of an atlantic salmon smolt
Illustration of Acridotheres tristis (Common Myna), which is an invasive pest in South Africa, North America, the Middle East, Australia, New Zealand and many Pacific islands as it out-competes native hollow-nesting bird species