Water Temperature (°C) w Discharge (ML day 
LIFE HISTORY OF BLACKFISH 
91 
A 
Fig. 1. Environmental characteristics of King Parrot Creek between June 1980 and May 1982. A, mean monthly 
discharge in ML. day 1 . B, water temperature in °C. Open squares 1980-81; open circles 1981-82. 
Regression equation 
n 
r 
P 
Total sample 
Log I0 W = 
= 2.856 Log I0 TL- 4.805 
1054 
0.994 
<0.001 
Females 
Log, 0 W = 
= 2.757 Log l0 TL-4.589 
363 
0.990 
<0.001 
Males 
Log 10 W = 
= 2.751 Log l0 TL - 4.587 
307 
0.986 
<0.001 
Table 1. Relationship (linear regression) between total length (TL) and weight (W) of 
Gadopsis bispinosus in King Parrot Creek; n = sample size, r = correlation coefficient, p = 
probability value for r. 
