Table 1. Arithmetic Mean CPUE (Catch in kg per Boat per Month per Year) ±95% Confidence Limits, for the Total Fin Fishery and the Fishery for Aldrichetta forsteri, Mugil cephalus and Cnidoglanis macrocephalus, in the 1960s, 1970s and 1980s in the Peel-Harvey, Swan and Leschenault Estuaries .a Significance Levels for the Results of ANOVAs (log[n+1] Transformed Data) are also shown. a
 
Species 
1960a
1970s
1980s
 Significance levels 
Total fin fishery
Peel-Harvey 
826 ± 120
1490 ± 342
1915 ± 336
<0.001
Swan 
678 ± 82
841± 83
1048 ± 101*
<0.001
Leschenault Inlet 
976 ± 196
1455 ± 425
1661±278
<0.01
A forsteri 
Peel-Harvey 
259 ± 56
555 ± 224
829 ± 227
<0.001 
Swan 
45 ± 14
78 ± 17
110 ± 45
<0.001 
Leschenault Inlet 
379 ± 87
444 ± 121
823 ± 163*
<0.001 
M. cephalus 
Peel-Harvey 
196 ± 36
426 ± 114
656 ± 70
<0.001 
Swan 
l98 ± 46
189 ± 24
252 ± 39*
<0.05 
Leschenault Inlet
145 ± 42
195 ± 64
254 ± 71
n.s. 
C. macrocephalus 
Peel-Harvey 
169 ± 132
284 ± 118
212 ± 127
n.s. 
Swan
113 ± 43
103 ± 30
67 ± 15
n.s. 
Leschenault Inlet
163 ± 154
9I ± 39
27 ± 9**
<0.05 

a The values for those decades that are underlined are significantly higher than the 1960s. * = The value for the 1980s is significantly higher than the value for the 1970s. ** = The value for the 1980s is significantly lower than those for the 1960s and 1970s.