. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. 2o8 DISCOVERY REPORTS analysis of hydrographic correlations (Pickford, 1946). The distribution of Vampyroteuthis in relation to the water masses of the Atlantic and Indian Oceans is shown in Figs. 2 and 3. The names adopted here for the various water masses are those used by Sverdrup, Johnson & Fleming (1942). In the Atlantic the species inhabits the upper layers of the Deep Water and moves upwards into the North Atlantic Central Water. New records made by the ' Discovery' show that it also
. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. 2o8 DISCOVERY REPORTS analysis of hydrographic correlations (Pickford, 1946). The distribution of Vampyroteuthis in relation to the water masses of the Atlantic and Indian Oceans is shown in Figs. 2 and 3. The names adopted here for the various water masses are those used by Sverdrup, Johnson & Fleming (1942). In the Atlantic the species inhabits the upper layers of the Deep Water and moves upwards into the North Atlantic Central Water. New records made by the ' Discovery' show that it also moves upwards into the South Atlantic Central Water. This was entirely to be expected, but it is satisfactory to have verification. 15 w 10 tr D I- < UJ CL 5 UJ I- <J _ 1—r "i—1—1—1—1—1—1—r VAMPYROT EUTHI S NDIAN OCEAN P REVIOU S DISCOVE RY 1—T. _L J_ J_ CIRCUMPOLAR WATER -ANTARCTIC .1 I I L_ BOTTOM J I L W. 34 0 34 5 35 0 35 5 SALINITY %„ Fig. 3. The distribution of Vampyroteuthis infernalis in relation to the water masses of the Indian Ocean. In the Indian Ocean the few previous records are from the Indian Deep Water and upwards into the Indian Equatorial Water. One of the two Discovery records is from the Deep Water. The other, specimen No. 98 from the Somali Basin, is from a region where Red Sea Water is flowing out to join the Equatorial Water. At the present time there are no records from Indian Central Water. The distribution of Vampyroteuthis in relation to temperature, salinity, and density is further summarized in Fig. 4 in which the new records are indicated in solid black. Empirically the species appears to be restricted to water of salinities between 34-4 and 35-4 %0, of temperatures between 2 and io° C, and of densities between <rt 27-0 and 27-9. Dr E. F. Thompson has suggested that the last. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and
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