Trends in population index reported by USGS for southern sea otters

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Detailed Description

Trends in population index reported by USGS for southern sea otters in California. Data are shown for independent otters (nonā€pups) and all otters for mainland California (blue; left axis), San Nicolas Island (red; right axis), and range-wide (squares; left axis) from 2012 onward, when both indices were combined to calculate the population index.

Details

Image Dimensions: 2550 x 2250