1. 1) Jamieson, A. (2015) The Hadal Zone: Life in the Deepest Oceans. Cambridge University Press, Cambridge.
2. 2) Mantyla, A.W. and Reid, J.L. (1978) Measurements of water characteristics at depths greater than 10 km in the Maianas Trench. Deep-Sea Res. 25, 169–173.
3. 3) Nozaki, Y., Yamada, M., Nakanishi, T., Nagaya, Y., Nakamura, K., Shitashima, K. (1998) The distribution of radionuclides and some trace metals in the water columns of the Japan and Bonin trenches. Oceanol. Acta 21, 469–484.
4. 4) Scripps Institution of Oceanography (1978) Physical, chemical and biological data, INDOPAC Expedition, (R/V Thomas Washington), Data Report 78-21, University of California, La Jolla, California.
5. 5) Bryden, H.L. (1973) New polynomials for thermal expansion, adiabatic temperature gradient and potential temperature of sea water. Deep-Sea Res. 20, 401–408.