Table 17 

 Relationship Between Weekly Population Estimates and 

 Mean CPUE of Winter Flounder Taken During Population 

 Surveys in the Niantic River From 1975 Through 1981 



Period 3 n Slope b SE C Intercept SE r 2 C.V. 



All weeks/1975-81 46 6.17xl0 -4 0.744xl0" 4 16.406 2.532 0.617 31.7% 



All weeks/1976-81 42 7.86xl0" 4 1.445xl0~ 4 12.692 3.538 0.425 30.9% 



Through April-2/1976-81 19 10.41xl0" 4 2.562xl0" 4 9.099 5.640 0.493 30.1% 



a Using data from all weeks of population surveys or through the second week 

 of April (spawning period) . 



Regression equation in the form CPUE = a + bxpopulation estimate 

 Standard error of estimate 



35 



