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. Author manuscript; available in PMC: 2018 Oct 23.
Published in final edited form as: J Great Lakes Res. 2017 Feb;43(1):205–210. doi: 10.1016/j.jglr.2016.10.005

Fig. 2.

Fig. 2.

(a) Lateral image of a preflexion 4.6 mm TL Ruffe (Gymnocephalus cernua) with no visible sign of swim bladder development. (b) Lateral image of a preflexion 4.8 mm TL Black Crappie (Pomoxis nigromaculatus) with a well-developed and dorsally pigmented swim bladder.