The Existence of Nile Perch as Big Freshwater Fish

The Existence of Nile Perch as Big Freshwater Fish - Freshwater Fish | The Nile perch (Lates niloticus ) is among the species that referred to as big freshwater fish that reside in native towards the Congo, Niger, Lake Chad, Volta, Nile, Senegal,and Lake Turkana along with other area of river basins, and it is now widespread through tropical Africa. Perhaps one of the largest freshwater fish, These big freshwater fish Nile perch reaches a maximum length of nearly two meters (greater than six feet ), weighing as much as 200 kg. Mature fish average 121–137 cm although many fish are caught before they could grow this large.

Nile perch as one of the big freshwater fish are silver in color having a blue tinge. There is a distinctive dark black eye having a bright yellow outer ring. Nile perch are often seen around 2-4 kg, but happen to be caught and seen at sizes as much as 200 kg (the biggest at 232 kg). These big freshwater fishes have length in average around 85-100 cm but it may grow to 193 cm. The females Nile perch are usually larger than the males. The preopercle and pre-orbital bones are equipped with spines, they also equipped with a big spine upon the free fringe of the operculum.

As big freshwater fish known to be a fierce predator that dominates its surroundings area, This big freshwater fish Nile perch feeds on other fish but also including its own species, insects, and crustaceans. This big freshwater fish juveniles also feed on zooplankton. This big freshwater fish Nile perch happen to be introduced to a lot of other lakes in Africa, that includes Lake Victoria in year 1962.

The IUCN's (World Conservation Union ) Invasive Species Specialist Group considers Nile perch to be one of the world's 100 worst invasive species. For that case the state of Queensland in Australia levies heavy fines on anyone found in possession of the living Nile perch, because this big freshwater fish looks almost the same with the native Barramundi, as it is similar but doesn‘t reach a similar size like the big freshwater fish Nile perch.

Reference: http://en.wikipedia.org