Table 2. Summary table of the CalCOFI physical-chemical conditions at 300 m depth.

CalCOFI ancillary stations that were used to complement the characterization of the area around L. pertusa collection. Values for temperature (T °C), salinity (Sal), estimated pH on total scale (pH${}_{\mathrm{T}}^{\mathrm{es}}$), estimated total alkalinity (A${}_{\mathrm{T}}^{\mathrm{es}}$) and aragonite saturation (Ω_arag) represent those found at 300 m depth (estimated values according to Alin et al., 2012). Line and group station refer to the CalCOFI original grid code, with the relative distance to L. pertusa collection. Values are given as mean ± SD.

						Physical—Chemical conditions at 300 m depth
	Group station	Latitud	Longitude	Depth range (m)	Distance to collection site (km)	T°C	Sal	pH${}_{\mathrm{T}}^{\mathrm{es}}$	A${}_{\mathrm{T}}^{\mathrm{es}}$	Ωarag
Line 83.3	42	34°10′N	119°30′W	80–100	27	–:–	–:–	–:–	–:–	–:–
	51	33°52′N	120°8′W	80–100	58	–:–	–:–	–:–	–:–	–:–
	55	34°44′N	120°24′W	80–400	85	8.14 ± 0.02	34.21 ± 0.006	7.66 ± 0.0004	2286 ± 0.82	0.84 ± 0.001
	60	33°34′N	120°45′W	80–400	118	7.47 ± 0.03	34.11 ± 0.002	7.68 ± 0.0002	2279 ± 0.50	0.85 ± 0.002
Line 86.7	35	33°49′N	118°37′W	80–400	76	8.77 ± 0.01	34.23 ± 0.01	7.65 ± 0.003	2282 ± 0.84	0.84 ± 0.004
	40	33°39′N	118°58′W	80–400	56	8.41 ± 0.02	34.23 ± 0.005	7.65 ± 0.0004	2285 ± 0.61	0.83 ± 0.001
	45	33°29′N	111°19′W	80–400	51	8.14 ± 0.03	34.21 ± 0.002	7.66 ± 0.0005	2285 ± 0.01	0.84 ± 0.004
	55	33°09′N	120°01′W	80–400	94	7.79 ± 0.04	34.19 ± 0.002	7.67 ± 0.0006	2286 ± 0.25	0.84 ± 0.001
	60	32°59′N	120°20′W	80–400	131	7.40 ± 0.02	34.07 ± 0.006	7.69 ± 0.0009	2277 ± 0.99	0.86 ± 0.001