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. 2023 Jan 24;13(1):e9777.
doi: 10.1002/ece3.9777. eCollection 2023 Jan.

New records of Spotted Bass, Micropterus punctulatus, within the Mississippi River Basin, Illinois

Andrya L Whitten  1 , Brandon S Harris  1 , Jason A DeBoer  1 , Nerissa N McClelland  2 , James T Lamer  1
Affiliations

New records of Spotted Bass, Micropterus punctulatus, within the Mississippi River Basin, Illinois

Andrya L Whitten et al. Ecol Evol. .

Abstract

Spotted Bass Micropterus punctulatus, like many sport fishes, have experienced range expansion through intentional introductions (i.e., legal stocking and illegal transfers) and migration across the United States. In Illinois, USA, native populations of Spotted Bass occur along the eastern and southern border of the state. We report new records of Spotted Bass in their non-native range of the Illinois Waterway and the Illinois portion of the Upper Mississippi River in addition to collections in their native range in the Illinois sections of the Ohio and Wabash rivers to better understand their current distribution. Continuous, collaborative efforts to track the distribution and expansion of non-native fishes are important for maintaining and establishing native and non-native fisheries management objectives and education, as non-native fishes can influence native species population distribution and dynamics.

Keywords: Centrarchidae; Illinois Waterway; distribution; long‐term monitoring; sportfish.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

FIGURE 1
FIGURE 1
Spotted Bass Micropterus punctulatus collected from the Illinois Waterway in 2021. Photograph taken by Andrya L. Whitten.
FIGURE 2
FIGURE 2
Illinois Waterway and sections of the Upper Mississippi, Ohio, and Wabash rivers sampled by LTEF, LTRM, and IDNR, with the four new Spotted Bass Micropterus punctulatus records (2011–2021) denoted by white stars in labeled navigation pools separated by single black bars (lock and dams) in the Illinois Waterway and Upper Mississippi River. Double black bars represent sampled river reaches not separated by lock and dams. The native range of Spotted Bass for the United States and Illinois is represented by light gray shading, and the non‐native range where known populations of Spotted Bass exist is denoted by dark gray shading.
See this image and copyright information in PMC

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