Zooplankton — Bary 
47 
Fig. 18. See legend for Figure 17. 
and, incidentally, makes for readier identifi- 
cation (in the T-S-P diagram) of the mixed 
sample. 
Series 6. Stations 320 to 343; 21 to 22. III. 51 
These stations were occupied in March, 
and the shoreward extremity of the subtropi- 
cal convergence now transects the series (see 
p. 22). Stations 320 to 328 are north of the 
convergence, 331 to 343 to the south of it; 
Stations 329 and 330 are near to the meeting 
zone of the subtropical and subantarctic wa- 
ters (Figs. Aa, 19b, 2Qb). 
Subantarctic water is strongly evident, 
through low temperatures and salinities, only 
at Stations 341 to 343. Northwards towards 
the convergence there is a pronounced coastal 
influence shown by high temperatures and 
also by increased salinities (salinities decrease 
farther inshore as a result of dilution with 
fresh water). North of the convergence, the 
salinities at some stations approach those of 
open ocean subtropical water (about 35 / oo), 
but dilution is apparent and to a considerable 
degree at Stations 322 and 326. 
Southern and Northern Subantarctic spe- 
cies occurred at Station 326, and Northern 
species at 322. They are probably to be ac- 
counted for by upward migration of the 
organisms from the subsurface subantarctic 
water. 
The occurrences otherwise of the several 
planktonic groups conform to the distribu- 
tion of the waters. Station 342 has only Sub- 
antarctic groups present, but at Station 337 
these groups are rare and the Coastal Group 
predominates. At Station 330 there is a mix- 
