TABLE 4. Annual Jolly composite index of winter flounder abundance during the spawning season in the 

 Niantic River from 1976 through 1987. 



Year 



Number of 

 values used 



Composite index 

 ± 2 standard errors 



Adjusted 

 index 



35.0 

 36.3 

 26.2 

 9.7 

 11.9 



For winter flounder larger than 15 cm during 1976-82 and 20 cm thereafter. Index 

 adjusted to all fish larger than 15 cm for 1983-86. 



Index adjusted to all fish larger than 15 cm for 1983-87 for comparison with 1976-82. 



Only Ni excluded. 



No values of N excluded. 



70 



60 



JOLLY 

 (>15 cm) 



-i- 



~Y 



79 80 



Fig. 3. Jolly index of abundance (±2 standard errors) for Niantic River winter flounder larger than 15 cm 

 from 1976 through 1982 and larger than 20 cm from 1983 through 1987. For comparisons, the CPUE index 

 w^s adjusted upwards by adding fish between 15 and 20 cm during 1983-87 (shown by a *). 



160 



