Table 3. Serum Cortisol Reference Intervals.

Stratum	N	Outliers	95% Reference Interval	95% Reference Interval
			Lower Bound (90% CI)	Upper Bound (90% CI)
Pre-sampling <30 minutes elapsed	93	2	0.91 (0.79–1.02)	4.21 (3.81–4.40)
Post-sampling	52	0	2.32 (1.84–2.80)	6.68 (5.99–7.30)

Serum cortisol (μg/dL) 95^th percentile reference intervals and associated 90% confidence intervals for free-ranging bottlenose dolphins sampled in less than 30 minutes following net deployment (pre-sampling) and dolphins sampled following veterinary procedures (post-sampling).