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Table 1 Geochemical data of deep hypersaline anoxic basin (DHAB) brines and typical seawater (modified from [13, 21])

From: Metazoans of redoxcline sediments in Mediterranean deep-sea hypersaline anoxic basins

Geochemistry L’Atalante Discovery Urania Seawater
Coordinates (N) 35°18.87 35°17.15 35°13.78
     (E) 21°24.34 21°42.31 21°28.94
Water depth (m) 3430 3582 3468
Density (103 kg m−3) 1.23 1.35 1.13 1.03
Na+ (mM) 4674 68 3503 528
Cl (mM) 5289 9491 3729 616
Mg2+ (mM) 410 4995 316 60
K+ (mM) 369 20 122 11
SO4 2− (mM) 397 96 107 32
HS (mM) 2.9 1 16 2.6 × 10−6
CH4 (mM) 0.5 0.03 5.6 1.4 × 10−6
  1. Coordinates (degrees (°) decimal minutes) and water depths reflect our approximate sampling area for each DHAB