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Brief Summary

    Redhook myleus: Brief Summary
    provided by wikipedia

    The redhook myleus, Myloplus rubripinnis, is a medium to large omnivorous fish of the family Serrasalmidae from South America, where found in the Amazon and Orinoco basins, as well as rivers of the Guiana Shield. It is peaceful and schools often, and can grow to a length of 39 cm (15 in). They are also called the redhook silver dollar and are one of the fish referred to as "silver dollars". These fish are capable of delivering serious bites to humans.

Comprehensive Description

Life Cycle

    Life Cycle
    provided by Fishbase
    The red hooked anal fin of the female is actually a plough. The male has a bilobed anal fin which is designed to wrap around the female's "hook". During spawning, the female inserts the hook into the substrate (e.g., gravel) and ploughs a furrow while laying the eggs with the male in a position next to her with his bi-lobed fin wrapped around the hook as he fertilises the eggs. The female's "hook" is suprisingly strong and can be pushed into coarse gravel (up to the anal opening) without any problem with a shaking body action, the male's bilobed hook folds under the same pressure so they can work in unison (Ref. 55767).

Threats

    Threats
    provided by Fishbase
    Not Evaluated

Benefits

    Importance
    provided by Fishbase
    fisheries: minor commercial; aquarium: commercial