Table A1.

Sampling stations and sample depths

	Station	Latitude (°N)	Longitude (°E)	Depth (m)	Sampled depths (m)
Seamount stations	0	10.4769	140.1347	110	3, 15, 30, 50, 75, 101
	1	10.4335	140.1483	57	3, 15, 30, 50
	2	10.4081	140.1569	1,140	3, 30, 50, 75, 118, 150, 200, 300, 500, 1,130
	3	10.3706	140.1684	1,465	3, 30, 50, 75, 128, 150, 200, 300, 500, 1,000, 1,450
	5	10.5233	140.1194	92	3, 15, 30, 50, 87
	6	10.5601	140.1179	932	3, 30, 50, 75, 115, 150, 200, 300, 500, 920
	11	10.4762	140.1118	615	3, 30, 50, 75, 100, 133, 200, 300, 610
	12	10.4754	140.0921	1,555	3, 30, 50, 75, 119, 150, 200, 300, 500, 1,000, 1,540
	17	10.4807	140.1575	506	3, 30, 50, 75, 100, 126, 200, 300, 500
	18	10.4886	140.1898	1,716	3, 30, 50, 75, 120, 150, 200, 300, 500, 1,000, 1,700
Far‐field stations	4	10.3040	140.1898	1,521	3, 30, 50, 75, 120, 150, 200, 300, 500, 1,000, 1,506
	7	10.6199	140.1192	2,368	3, 30, 50, 75, 100, 136, 200, 300, 500, 1,000, 2,340
	8	10.6628	140.1218	3,508	3, 30, 50, 75, 100, 128, 200, 300, 500, 1,000, 2,000, 3,490
	9	10.7213	140.1205	4,512	3, 30, 50, 75, 100, 138, 200, 300, 500, 1,000, 2,000, 4,501
	10	10.9138	140.0889	5,999	3, 30, 50, 75, 100, 138, 200, 300, 500, 1,000, 2,000, 4,000, 5,950
	13	10.4738	140.0629	2,211	3, 30, 50, 75, 112, 150, 200, 300, 500, 1,000, 2,190
	14	10.4717	140.0029	2,297	3, 30, 50, 75, 119, 150, 200, 300, 500, 1,000, 2,271,
	15	10.4696	139.9285	2,778	3, 30, 50, 75, 100, 150, 200, 300, 500, 1,000, 2,763
	16	10.4688	139.8599	2,760	3, 30, 50, 75, 100, 136, 200, 300, 500, 1,000, 2,000, 2,730
	19	10.4973	140.2264	2,500	3, 30, 50, 75, 100, 132, 200, 300, 500, 1,000, 2,000, 2,470
	20	10.5117	140.2862	2,731	3, 30, 50, 75, 100, 131, 200, 300, 500, 1,000, 2,000, 2,700
	21	10.5329	140.3765	2,477	3, 30, 50, 75, 100, 131, 200, 300, 500, 1,000, 2,000, 2,448