Appendix Table 6. — Percent frequency of occurrence of principal invertebrate groups in 215 

 stomachs of western North Atlantic Thunnus albacares by size range. 





Size (cm FL): 



60.0-99.9 



100.0-119.9 



120.0-169.9 



Total 



Food categories 



No. of specimens: 



59 



91 



65 



215 



Portunidae 





12 



7 



15 



11 



Brachyura larvae 





8 



10 



5 



8 



Anomura larvae 





19 



14 



2 



12 



Cerataspis larvae 





5 



7 



3 



5 



Scyllaridae (incl. larvae) 







3 



2 



2 



Other Decapoda (incl. larvae) 





12 



8 



5 



8 



Stomatopoda larvae 





17 



20 



3 



14 



Euphausiacea 





5 







1 



Phrosina semilunata 





29 



16 



17 



20 



Phronima spp. 





12 



15 



17 



15 



Other Hyperiidea 





15 



9 



11 



11 



Isopoda 





2 



3 





2 



Copepoda 





2 



2 



3 



2 



Heteropoda 





10 



10 



11 



10 



Pteropoda 











< 1 



Other Gastropoda 





3 









Cephalopoda 





83 



77 



82 



80 



Appendix Table 7. — Percent frequency of occurrence of principal invertebrate 

 groups in 34 stomachs of western North Atlantic Thunnus alalunga by size range. 





Size 



(cm 



FL): 



80.0-99.9 



100.0-110 



Total 



Food categories 



No. of specimens: 



15 



19 



34 



Brachyura larvae 









20 



5 



12 



Anomura larvae 









13 





6 



Scyllaridae (incl. larvae) 









7 



11 



9 



Other Decapoda (incl. larvae) 









20 



37 



29 



Stomatopoda larvae 









13 



47 



32 



Euphausiacea 









7 



11 



9 



Phrosina semilunata 









60 



68 



65 



Phronima spp. 









7 



10 



9 



Other Hyperiidea 









20 



26 



24 



Cephalopoda 









93 



84 



89 



Appendix Table 8. — Percent frequency of occurrence of principal invertebrate groups in 27 

 stomachs of western North Atlantic Thunnus thynnus by size range. 





Size 



(cmFL): 



100.0-149.9 



150.0-199.9 



200.0-231.9 



Total 



Food categories 



No. of specimens: 



10 



10 



7 



27 



Other Decapoda (incl. larvae) 









20 



14 



11 



Euphausiacea 







10 



10 



14 



11 



Phrosina semilunata 









50 



14 



22 



Phronima spp. 







10 



30 





15 



Other Hyperiidea 







10 



40 



14 



22 



Heteropoda; Pteropoda 







70 



50 



29 



52 



Cephalopoda 







90 



90 



71 



85 



18 



