Table 7. — Length frequency distribution Co) of haddock. 



Length 



Cod ends and covers 



Cod ends only 



Table 8. — Haddock length frequency distributions 

 and percent retained for 107 mm cod end covered 

 tows — both vessels. 



interval 



Overall 

 average 



107 mm 



138 mm 



Joseph & 

 Lucia II 



Joseph & 

 Lucia III 



107 mm 

 covered 



107 mm 

 uncovered 



138 mm 

 covered 



138 mm 



uncovered 











(cm) 



Length 



interval 



(cm) 



Numbers caught 





28-30 

 31-33 



0.1 

 0.2 



0.2 

 0.4 



0.1 



0.1 



0.1 



0.3 



0.2 

 0.0 





0.1 





107 mm 



107 mm 

 plus covers 



Percent 

 retained 



34-36 



0.3 



0.6 



0.2 



0.5 



0.1 



0.4 



0.1 



0.0 





28-30 



1 



1 



100.0 



37-39 



1.2 



1.5 



1.1 



1.6 



0.9 



0.9 



0.9 



0.2 





31-33 







2 



0.0 



40-42 



4.7 



5.6 



4.2 



5.0 



4.3 



5.3 



3.5 



2.5 



0.6 



34-36 



2 



3 



66.6 



4345 



5.7 



5.9 



5.6 



6.2 



5.2 



6.0 



6.2 



3.9 



1.2 



37-39 



5 



8 



62.5 



4648 



4.5 



4.1 



4.7 



4.5 



4.5 



4.1 



5.9 



4.4 



2.8 



40-42 



28 



30 



93.3 



49-51 



12.7 



13.5 



12.2 



13.9 



11.5 



13.6 



12.9 



12.1 



10.7 



43-45 



32 



32 



100.0 



52-54 



26.2 



27.2 



25.6 



24.4 



27.7 



27.7 



26.2 



26.7 



28.8 



4648 



22 



22 



100.0 



55-57 



28.2 



25.4 



29.7 



28.4 



28.0 



25.8 



26.9 



31.9 



34.3 



49-51 



72 



73 



98.6 



58-60 



12.8 



11.1 



13.7 



11.7 



13.7 



11.3 



13.1 



14.9 



15.8 



52-54 



147 



147 



100.0 



61-63 



2.3 



2.6 



2.1 



2.1 



2.4 



2.6 



2.5 



2.3 



4.0 



55-57 



137 



137 



100.0 



64-66 



0.6 



0.6 



0.6 



0.5 



0.6 



0.6 



0.9 



0.7 



0.8 



58-60 



60 



60 



100.0 



67-69 



0.3 



0.4 



0.3 



0.4 



0.3 



0.4 



0.2 



0.3 



0.1 



61-63 



14 



14 



100.0 



70-72 



0.3 



0.7 





0.3 



0.3 



0.8 



0.3 





0.3 



64-66 



3 



3 



100.0 



73-75 



0.0 



0.0 





0.0 





0.0 



0.2 





0.3 



67-69 



2 



2 



100.0 



76-78 



0.1 



0.4 





0.3 





0.4 



0.1 





0.3 



70-72 



4 



4 



100.0 



79-81 



















0.0 



73-75 











100.0 



82-84 



















0.1 



76-78 



2 



2 



100.0 



Totals 



1,547 



540 



1,007 



761 



786 



531 



1,372 



915 



1,544 



Totals 



531 



540 





r 



< 



_J 

 < 



o 



h- 



UJ 



100 - 



80 - 



60 - 



50 



40 - 



20 - 





°? 



- 



/— — £M- A - A - A 





7 A' of 





/ / ' 





/ ^ * 





It* 



— 



1 ' 





III 





If 





If 





•/ /A ? 





/ • / 









/ ^ ; 





J ' 





"t n 



- 



1 J p 



- 



I 1 



/ o.- o 





; 





/ 





/ 



— 1 — < 



. Ax J 1 1 1 1 



10 



26 32 38 44 50 56 62 68 CM 



15 



20 



LENGTH 



25 



IN 



Figure 5. — Vessel comparisons — haddock. Cod ends -t- covers: solid line 

 Joseph & Lucia II; dasb line = Joseph & Lucia HI. 



Figure 6. — Selection curves — haddock. Solid circles = 107 mm covered; open 

 circles = 138 mm uncovered; open triangles = 138 mm covered. 



10 



