Which major North American drainage system is identified as part of the native territory for *Pomoxis annularis*?
Answer
Mississippi River basin
The native biogeographic range of the White Crappie is extensive across North America, but its core distribution is rooted in major hydrological systems. Specifically, *P. annularis* is native to the Mississippi River basin and the Great Lakes drainages. This territory historically extended widely, encompassing regions from New York and southern Ontario in the north, down to the Gulf of Mexico coast. While the text notes extensions into Gulf Slope drainages, the Mississippi River basin serves as a primary foundational element of its original native spread.

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