Table 1.

Tag deployment and data summary. (The age classes of the porpoises were determined using growth curves established for Danish porpoises [26].)

animal ID	hp12_272a	hp12_293a	hp13_102a	hp13_170a	hp14_226b	hp15_117a	hp16_264a
deployment date	28 Sep 2012	19 Oct 2012	12 Apr 2013	19 Jun 2013	14 Aug 2014	26 Apr 2015	20 Sep 2016
age class and sex	juvenile ♀	adult ♀ (with a calf)	juvenile ♂	juvenile ♂	juvenile ♂	adult ♀	adult ♀ (with a calf)
standard length (cm)	122	163	114	122	126	170	163
handling time (min)	15	3	5.5	3.5	7.5	12	10
recording duration (h)	21.9	17.7	23.7	15.3	21.7	13	11.9
time to first foraging buzz (h)	4.1	1.4	1	0.1	0.2	0.6	0.2