Table 2.

Regressions between the number of pups stranded on the beach adjacent to the Cobquecura breeding colony and statistical wave parameters for each sea state at fortnight intervals in the January–February period between 2009 and 2018.

Parameter	01–15 January		16–31 January		01–15 February		16–29 February
	F	R2	F	R2	F	R2	F	R2
Hs(mean)	1.52	0.13	22.04	0.45***	13.58	0.36***	0.18	0.09
Hs(max)	1.37	0.11	60.19	0.69***	10.08	0.30***	3.79	0.26*
Tp(mean)	0.02	0.001	1.31	0.05	3.19	0.05*	0.84	0.07
Tp(max)	0.26	0.02	1.43	0.05	2.90	0.11	0.56	0.05
Hs2 Tp(mean)	0.91	0.08	59.38	0.69***	11.99	0.33***	1.28	0.11
Hs2 Tp(max)	0.92	0.08	94.89	0.77***	7.45	0.24**	1.05	0.09
η	0.27	0.02	59.00	0.67***	10.87	0.31***	1.10	0.09
η2 Tp	0.06	0.006	53.35	0.66***	6.56	0.21**	0.36	0.03

Hs_(mean): the mean daily significant wave height; Hs_(max): the maximum daily significant wave height; Tp_(mean): the mean daily peak period; Tp_(max): the maximum daily peak period; Hs² Tp_(mean): the mean daily value of wave power; Hs² Tp_(max): the maximum daily value of wave power; η: maximum surface elevation; η² Tp: modified wave power including the tide. Significant differences are highlighted in bold.

*P < 0.05, **P < 0.01, ***P < 0.001.