Table 2.

Summary of the content and coverage of the four digitized datasets. Note that depths may represent either sampling depths or bottom depths, this is unclear and confused in the publication (see also section "Step description" – "Difficulties and problems encountered during the digitization procedure")

	Introductory table	Polychaetes	Fish (Clupeiformes)	Calcareous algae
Temporal coverage	1905-06-13 to1912-01-07	1905-05-14 to1930-06-18	1904-09-05 to1914-01-24	1908-12-14 to1910-09-19
Geographical coverage (min, max Latitude / min, max Longitude)	30.33, 53.1 / -29.88, 29.83	0.516, 51.57 / -17.983, 28.23	28.6, 59.32 / -10.7, 33.05	30.38, 48.72 / -4.75, 26.1
Minimum depth	0	20	0	3
Maximum depth	6020	>4000	> 3700	98
No. of stations	443	210	208	16
No. of samples	1566	599	341	16
No. of occurrence records	–	883	646	59
Vessels	Thor, Ingolf, Florida, Pangan, St. Croix, St. Jan, St. Thomas, Agent Petersen, Anne, Caroline Kock	Thor, Pangan, Dana	Thor, Algarvae, Nordboen, Pangan	Thor