The fish is called Arapaima gigas and is commonly found in Amazon river. The team plans to begin this work once again from next week to obtain more information on alien fish species that this year’s floods may have released into Kerala’s water systems. The mouth is turned upwards which helps with feeding as they consume food from the surface. But not all exotic species become invasive, cautions Nachiket Kelkar from the Ashoka Trust for Research, Ecology and the Environment (ATREE) in Bengaluru, who has studied fish communities in the Western Ghats and north India. Name: Arapaima(pirarucu) Species: Arapaima arapaima Thai name: Pla tjon Amazon Biggest known fish: 600LB lake rod caught record: 560lb Average weight: 180lb Diet: Fish, boilie, pellet, frogs, small animals, reptiles and birds. Their large scales are tough for predators to break through. This policy, coupled with both an extensive database of invasive species with information on their invasion biology and an awareness campaign, would help in gradually managing the issue of invasive species, suggests Kumar. In their communication in the journal Current Science in May this year, the team call for an urgent nationwide scheme to eradicate such alien fish species. Image credit: Smrithy Raj. Squirming around at the base was a fish he had never seen before: flat-headed and sporting large scales tinted in pink and cream. After the floods, an Arapaima of 65 kg, which was grown in a local farm as a tourist attraction, was caught from the Chalakudy river. “To be billed as an invasive, the species must proliferate to unnatural abundances in the habitats where they get naturalised, and also outcompete other species,” he wrote in an email. According to a report by BBC News, studies reveal that errors in the classification of the species could mean that it is being pushed closer to … New Arrivals. The head of the arapaima is copperish-green in color, their bodies are black with a white center and their tails are red. Physical removal of catfishes from these areas would also help counter the situation, he suggested; in Periyar, the NBFGR along with the Periyar Foundation has taken up a programme to remove African catfish from the lake by involving tribal fishermen, he said. Featured Today 11-28-2020. But unless we know the numbers of these aliens in our river systems or their reproductive status, it would be impossible to make predictions, he added. When a final heave raised the net slightly above water, Kallarackal could not believe his eyes. Alligator gar in Kerala’s waters could indeed be a potential concern because the species is primarily carnivorous and can feed on native fish, said V. S. Basheer, principal scientist at Kochi’s National Bureau of Fish Genetics Resources (NBFGR). “The customs handle violations that occur at the frontiers such as seaports and airports and there have been recent instances of seizing some prohibited fish species too,” he said. Episode 5 – Radhika Apte - Her Moods, Her Make-up and Her Movies, Best Camera Phones Between 10000 To 20000, Best Android Phones Between 10000 to 20000. ... One of them show his encounter with an Arapaima … Smaller sized pellets when young, and larger sized pellets when bigger, is the ideal food for these fish. Near the end of its body it has orange or red speckled scales. Other invasives include the guppy and mosquitofish (legally introduced to control mosquito populations). Freshwater fish are fish that spend some or all of their lives in fresh water, such as rivers and lakes, with a salinity of less than 0.05%. 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