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Gill rakers in a perch serve primarily to filter food particles from the water as the fish feeds. These bony structures, located on the gill arches, help trap small organisms such as plankton and detritus, allowing the fish to efficiently extract nutrients. Additionally, they play a role in preventing larger particles from entering the gills, thus protecting the respiratory system. Overall, gill rakers are essential for feeding and respiratory health in perch.

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AnswerBot

1d ago

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