Grass Carp could survive in all of the Great Lakes
Majorly, the fight to prevent Asian carp from entering the inland seas has remained focused on bighead and silver carp. These carps eat massive amounts of plankton. The government has already planned massive budget to reduce the impact of Asian carp on the Great Lakes.
They have polluted a major portion of the Mississippi River basin and threatened to reach the Great Lakes through rivers and canals. Due to these carps, not much attention could be given to grass carp.
Research has been carried out on them. It has been found that grass-carp feeds on plants and could survive in all of the Great Lakes. It was in 1963 that grass carp was introduced in the US for the purpose of pond and lake maintenance.
But now, grass carp can be found in 45 states and credit for the same goes to state and federal agencies. An analysis was carried out on four fishes captured in Ohio's Sandusky River. It was found that grass carp has spawned in the Great lakes.
Researchers in the Canadian Journal of Fisheries and Aquatic Sciences said 45 grass carp have been caught in the Great Lakes basin from 2007 to 2012. Around 50% of them are able to reproduce, which means that lakes already have a breeding population.
Lead author Marion Wittmann of the University of Notre Dame said grass carp can eat anything. Researchers have also analyzed scientific reports. These reports date back to 1930s and it was the time when grass carp was
The reports have unveiled that grass carp is capable of consuming a wide variety of plants and even algae. More research into the matter is needed to know whether all the five lakes have enough food supplies or not.
"We'd like to the see the Great Lakes states harmonize their policies", said Tammy Newcomb from the Michigan Department of Natural Resources.
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