Croaker / ढोमा

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Scientific Name Common Name
Johnius dussumieri Croaker / ढोमा

Croakers are called so for the repetitive throbbing or drumming sounds they make. Their croaking mechanism involves the beating of abdominal muscles against the swim bladder. In some species, croaking is used for communication aside from attracting mates. For those species that have year-round croaking ability, the croaks may serve as a low-aggression warning during group feeding, as well as to communicate location in cloudy water. In those species that lack the ability to croak year-round, croaking is usually restricted to males for attracting mates. A disadvantage to the croaking ability is that it allows bottlenose dolphin to easily locate large groups of croakers as they broadcast their position, indicating large amounts of food for the dolphins.

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HOW ITS CAUGHT: Trawl
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