APPENDIX C 

 MESH MEASUREMENT STATISTICS 



12 



Trawl Stations 

 Overall 7 



10 



11 



Overall 



CHRISTOPHER ANDREW 





A. Small Cod End 











B. 



Large Cod End 







x = 140.00 

 Sx = 3.20 



x = 107.50 x = 103.92 

 Sx = 3.28 Sx = 2.55 



A. Small Cod End 



x ■ 104.33 

 Sx = 2.97 



X 



Sx 

 Sx 



= 104.90 x = 140.00 

 = 2.98 Sx = 4.23 

 = 0.272 



FRANCES ELIZABETH 



x = 



Sx = 



143.40 

 4.45 



B. 



x ■ 140.00 

 Sx = 4.14 



Large Cod End 



x = 138.00 

 Sx = 3.61 



x = 140.35 

 Sx = 4.11 

 Sx = 0.375 



x = 109.23 

 Sx = 3.99 



x = 106.37 x = 106.53 

 Sx = 4.07 Sx = 2.64 



x = 104.97 

 Sx = 4.47 



x 

 Sx 

 Sx 



= 106.80 x = 141.00 

 = 3.79 Sx = 3.70 

 = 0.346 



X = 



Sx = 



138.23 

 4.66 



x = 133.83 



Sx = 3.90 



x = 134.33 

 Sx = 5.20 



x = 136.80 

 Sx = 4.37 

 Sx = 0.398 



Trawl Stations 

 9 10 



16 



Overall 



LINDA B 









A. Small Cod End 















A. 



Small Cod End 







X = 

 X = 

 X = 



98.23 

 4.10 

 0.75 



x = 

 Sx = 



Sx = 



98.67 x = 100.13 

 2.38 Sx = 2.51 

 0.44 Sx = 0.48 



x = 

 Sx - 

 Sx = 



99.73 

 2.59 

 0.47 



x = 

 Sx = 

 Sx = 



98.87 x = 

 2.24 Sx = 

 0.41 Sx = 



METACOMET 



98.87 

 2.70 

 0.49 



x = 

 Sx = 

 Sx = 



100.10 

 2.37 

 0.43 



x = 99.50 

 Sx = 2.93 

 Sx = 0.54 



x = 

 Sx = 

 Sx = 



99.26 

 2.74 

 0.177 









A. Small Cod End 







x - 

 Sx = 

 Sx = 



101.60 

 4.00 

 0.70 



x = 

 Sx = 

 Sx = 



96.60 x = 98.40 

 3.50 Sx = 4.10 

 0.60 Sx = 0.80 



x = 

 Sx = 

 Sx • 



97.90 

 3.10 

 0.60 



x = 97.70 x = 98.70 x 

 Sx = 2.90 Sx = 3.60 Sx 

 Sx = 0.50 Sx = 0.70 Sx 



A. Small Cod End 



98.80 x = 98.50 x = 98.53 



3.60 Sx = 3.40 Sx = 3^53 



0.70 Sx = 0.60 Sx = 0.228 



Trawl Stations 



11 



12 



13 



14 



Overall 



LINDA B 







B. Large Cod End 











x = 127.60 

 Sx = 3.87 



Sx - 0.71 



x = 

 Sx = 



Sx = 



127.27 x = 128.57 

 3.37 Sx = 3.45 

 0.62 Sx = 0.63 



B. Large Cod End 



x = 129.23 

 Sx = 3.26 

 Sx = 0.59 



x = 

 Sx = 

 Sx = 



130.43 x = 128.83 

 3.92 Sx = 3.02 

 0.72 Sx = 0.55 



METACOMET 



X 



Sx 

 Sx 



x = 133.30 

 Sx = 3.20 

 Si = 0.60 



X = 



Sx = 



Sx = 



135.30 x - 134.80 

 5.60 Sx = 3.70 

 1.00 Sx = 0.70 



x = 134.30 

 Sx = 4.10 

 Sx = 0.08 



X = 



Sx = 

 Sx = 



133.90 x = 132.90 

 3.50 Sx = 4.90 

 0.60 Sx = 0.90 



X 



Sx 

 Sx 



B. Large Cod End 



128.53 x = 129.17 x = 128.70 



3.5164 Sx = 2.48 Sx = 3.36 



0.64 Sx = 0.45 Sx = 0.217 



B. Large Cod End 



132.90 x = 134.40 x = 133.98 



3.30 Sx = 5.10 Sx = 4.18 



0.60 Sx = 0.90 Sx = 0.270 



Trawl Stations 



10 



12 



Overall 



A. Small Cod End 



x = 102.30 x = 101.50 x = 104.17 x = 103.70 



Sx = 3.16 Sx = 3.69 Sx = 3.77 Sx = 4.45 



Sx = 0.58 Sx = 0.67 Sx - 0.69 Sx = 0.81 



JOSEPH & LUCIA II 



A. Small Cod End 



x = 106.57 x = 103.97 x = 103.7 

 Sx = 3.52 Sx = 3.75 Sx = 3.72 

 Sx = 0.64 Sx = 0.63 Sx = 0.67 



x = average (mean) size of meshes (mm). Sample size at each station was 30 meshes. 

 Sx = standard deviation indicating variation in mesh sizes. Two times Sx, added to and subtracted from 



between which 95* of the meshes fall. 

 Sx « standard error which is a measure of the preciseness of the mean. Two times Sx, added to and subtracted from 



95% confidence limits of x shown in this table. 



gives the size limits 



gives the 



37 



