Study: Killer Shrimps May Soon Become Invasive Specie to Enter the Great Lakes


A recent study discovers that killer shrimp is expected to be soon included in the list of invasive species of the Great Lake.

The Killer shrimp, or  Dikerogammarus villosus, is nearly an inch long. It is mainly famous for killing other animals and not eating them. Researchers believe that killer shrimp can disturb trade and local fishing in the future.

In the last two decades, nearly 180 non-native invasive animals have migrated to the Great lakes.  About 20 of 180 species can cause a big threat to economics and local systems. These species compel local population to migrate from their native place.

As per the report printed in journal Great Lake, invasions of non-native species can pose threat to the great lake.

A researcher of McGill University states that the great lake would probably become populated with numerous invaders in the next 50 years.  The majority of these invaders enter the lake through Black sea.  The particular region is considered as one of the major cause of disruptive animals in the Great Lakes.  There are chances that other species such as zebra, killer shrimp and monkey goby will also invade the lakes of North America in future.

Therefore, researchers have presented three different future situations in order to demonstrate the impact of invasive animals on the lakes.

Firstly, experts looked into the history of these lakes.  Generally, the Great lakes work as a waterway for ship business. A large number of these ships bring ballasts water from their homeland. Afterwards, they drain the water in the Great lakes.  Invasive species usually get into the Great Lakes with the help of ballast water, solid water or marine algae.

Secondly, the ‘live trade’ is another way through which non-native species begin to live in lakes.

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