Journal of Marine Sciences / 2013 / Article / Fig 2

Research Article

Unusual Mortality Events of Harbor Porpoise Strandings in North Carolina, 1997–2009

Figure 2

(a) Weekly harbor porpoise strandings in 1999 (darker blue bars) and 2005 (lighter blue bars) compared to weekly threshold A (mean + 2 standard deviations: 1997-1998, 2000–2004) (black horizontal solid line) and threshold B (mean + 2 standard deviations: 1997-1998, 2000–2004, 2006–2009) (red horizontal dashed line). (b) Annual harbor porpoise strandings during 1997–2009 (blue bars) compared to annual threshold A (black horizontal solid line) and threshold B (red horizontal dashed line).
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(a)
289892.fig.002b
(b)

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