The northern snakeheads known as the largest ravenous fish to crawl on the ground will readily invade the land if the inhabitant water conditions are not right. Extremely salty, acidity, or higher level of carbon dioxide in the composition can lead to this invasive condition. On October, 21st 2019, a study was published in the Integrative Organismal Biology journal, supporting and proving the claims. These amphibians consume native fish, crayfish, and frogs, consequently damaging the food chain in a few areas. It has been recently found out that this walking fish can survive up to 4 days on land. It is easy for this predatory fish to breathe on land.
Researcher of Wake Forest, Noah Bressman, recognized that the snakeheads move differently than other amphibian fishes. It can almost make simultaneous row movements with their pectoral fins by crawl the axial fin into the back and forth loop. It was also mentioned that these fishes move quicker and bizarrely than our previous knowledge. The snakeheads sizing from 1-27 inches, quickly pass through a rough-surfaced grass. Sue to their pectoral fins, they can push into these three-dimensional surfaces. It was also noted, due to risen pollution, overcrowding low lights, stagnant water, also plays a pivotal role in driving the snakeheads out. The higher level of carbon dioxide is a sworn enemy to them, and it is a direct consequence of the rising global warming.
When these fishes were first discovered on the land of Maryland Port, the United States, in 2002, it caused widespread fear amongst the folks. The Maryland Department electro fished in the tributaries of Potomac River to round up the snakeheads from it nearby drainage ditches. The natives were told to kill the elongated, voracious fish, with large dorsal fins, distinct largemouth and shiny, big teeth, immediately, if they come across. It is a sigh of relief that humans can outrun them, and they don’t harm any children or pets. Nevertheless, a detailed understanding can provide an insight to control their population.