38 
PACIFIC SCIENCE, VoL XIII, January 1959 
Figs. 11, 12. Series 1, Stations 10-153, January 6-24, 1951. The distribution of Southern and Northern Sub- 
antarctic, Subtropical, and Coastal species in relation to Figure 11, Temperature, °C.; and Figure 12, Salinity, °/oo. 
S.S.A. (Southern Subantarctic group); N.S.A. (Northern Subantarctic group); S.T. (Subtropical group); C. (Coastal 
group). Temperatures or salinities additional to those taken at plankton stations • ; plankton station numbers 
are underlined. 
butions of the properties of an area. In turn 
such changes may be correlated with varia- 
tions in the geographic distribution of the 
plankton to yield information showing the 
causes and effects of water movements on 
species distribution. Accordingly the geo- 
graphical distributions of water properties and 
of plankton groups are discussed for the sta- 
tions of Series 1 to 7. The relationships thus 
disclosed are considered with reference to the 
distributions in the T-S-P diagrams. 
Series 1. Stations 10 to 133; 6 to 24J.31 
The stations of Series 1 were accumulated 
over a period of 18 days. Of these, Stations 
10 to 48 were occupied during January 5 to 
6, 1951. Charts of the distributions of tem- 
peratures and salinities (Figs. 11, 12) illus- 
trate an average of conditions because of the 
length of time involved. 
Warm, comparatively highly saline water 
extends from the western and central Straits 
along the South Island coast, and has proba- 
bly originated in that Tasman Sea water which 
has been deflected to the southward along 
the west coast of South Island. It is being 
diluted by fresh water. Other highly saline 
water appears to be entering from Patterson 
Inlet, and spreads thence south-eastwards 
along the coast of the island. Cooler water 
(Fig. 11) is present as a tonguelike intrusion 
