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Labeo chrysophekadion

Labeo chrysophekadion
Black Shark
The Black Shark, also known as the Black Labeo, is uniformly black or dark brown. In some countries, it is an important food fish. The Black Shark is a very active, somewhat aggressive fish that is not suitable for the community aquarium. A large aquarium is necessary for the Black Shark, as it may reach two feet in length.

It is one of the only sharks that should not be kept in a planted aquarium, because plants make up a large part of its diet. A hood on the aquarium is also recommended, as the Black Shark is an accomplished jumper. Occurs in rivers, streams, canals and inundated floodplains. Sometimes seen in impoundments, but not in great numbers. Like other planktivorous and detritivorous carps, it begins spawning after the first thunderstorms of the coming rainy season. It spawns upstream from shallow sandbars that line long river bends. The eggs settle out in the shallow water and hatch just as water levels begin to rise following the initiation of seasonal rains. The fry immediately move into inundated grasses along the bank and continue to follow the leading edge of the advancing water as floodwaters spread over the land. Adults also migrate out into seasonally flooded areas where they feed on algae, periphyton, phytoplankton and detritus. They return to rivers from October to December. In Laos and Thailand, it migrates upstream at the onset of rainy season. In Cambodia, it undertakes upstream migration between October and March and downstream migration from March to August