First identify, then buy

Places.mongabay.comSohel Nawroz, Student, Faculty of Fisheries, Bangladesh Agricultural University, Mymensingh

The cultivation of predatory fish is increasing day by day. Almost all of the predatory fishes are exotic and carnivore in nature. They survive well in adverse conditions and the growth rate of these fish is higher than that of other fishes. So, fish farmers are cultivating predatory fish species. But some of the predatory fishes, especially Piranha (Serrasalmus Niger), is very dangerous for living beings and also the aquatic environment and the ecosystem of the water body.

In most of the cases, buyers fail to identity the predatory fishes. But such fish can be easily identified by observing some salient features. Piranha, one of the most disastrous invasive species, more or less looks like Thai Rupchanda. Piranha is flat with a wide mouth opening having two rows of long and sharp teeth. If we know the characteristics and are able to differentiate, the chances of making mistakes will be reduced. So, everyone should be aware before buying such fish.