Table 2.

– Proportion of recordings with at least one boat sound detected during and after the lockdown. Confidence intervals (C.I.) and P values are the results of exact Binomial tests comparing proportions after the lockdown with during lockdown's theoretical proportions. N.S. = non-significant difference.

	02:00–05:00	05:00–08:00	08:00–11:00	11:00–14:00	14:00–17:00	17:00–20:00	20:00–23:00	23:00–02:00
During	5/72 (7%)	16/72 (22%)	37/72 (51%)	32/80 (40%)	30/72 (42%)	20/72 (28%)	3/72 (4%)	2/72 (3%)
After	6/54 (11%)	24/47 (51%)	36/36 (100%)	43/48 (89%)	43/54 (79%)	35/54 (65%)	11/54 (20%)	6/54 (11%)
95% C.I.	4%–23%	36%–66%	90%–100%	77%–96%	66%–89%	51%–77%	11%–33%	4%–23%
P values	N.S.	<10-3	<10-3	<10-3	<10-3	<10-3	<10-3	0.005