Figure 6 | Scientific Reports

Figure 6

From: Analysis of bigmouth buffalo Ictiobus cyprinellus spawning phenology in Minnesota reveals 50-year recruitment failure and conservation concern

Figure 6

Thin-sectioned asteriscus otoliths from bigmouth buffalo Ictiobus cyprinellus captured at Rice Lake National Wildlife Refuge, Minnesota. Examples are of 8 different individual fish ranging from 53 to 92 years old. Insets are of the last several decades of otolith growth for the 53-year-old individual on the upper right, and the 81-year-old individuals. White dots note annuli, triangles mark decades. Scale bar = 600 μm (does not apply to insets).

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